Transcript Roots

Slide 1

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 2

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 3

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 4

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 5

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 6

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 7

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 8

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 9

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 10

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 11

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 12

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 13

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 14

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.


Slide 15

ROOT
Types of Roots
1. Taproot (Kazık kök)
• develops from primary root
• it’s fleshy and thick
ex: dandelion (karahindiba)
carrot, turnip, oak tree

ROOT
Types of Roots
2. Fibrous root (saçak kök)
• there is a primary root, but there
are lots of secondary roots.
• the size of secondary roots are
equal to primary root
ex: grass, corn

ROOT
Types of Roots
3. Adventitious roots (Ek kökler)
• these roots are not developed from primary or secondary roots.
• they are formed on the stem and leaves.
There are three types:

a) Climbing root:
developed from stem
fastens plant to a
solid support

b) Prop root:
developed form stem

gives support to plant
under unfavorable
conditions.
ex: corn

c) Aerial roots:
Some plants that
live on other
plants get
moisture by using
aerial roots
ex: Spanish
mosses

ROOT
a) Climbing root

ROOT
b)Prop root

ROOT
c) Aerial root

Root Growth

Root tip
Maturation zone: Root hairs are found on this zone and cells
are differentiated that means unspecialized
cells become specialized.
Elongation zone: Cells which are produced in meristematic
zone are elongated in this zone.
Meristematic zone: Meristematic cells are found in this region,
they are actively dividing cells and provide
growth in length.

Root cap: they are group of cells that protects the delicate
meristematic cells. During the growth of the root in soil,
they are crushed and release a lubricant which help the
root move easily in the soil.

Internal Structure of a Root

Internal Structure of a Root
Root hairs: They increase the surface area for
absorbtion of water
Epidermis: One cell thick, outermost layer of root, there
is no cuticle on it and it absorbs water and minerals.
Cortex: It is the storage place of the root. It is composed
of parenchyma cells. These cells store starch and they
conduct water and nutrients dissolved in water to
transport tissue.

Internal Structure of a Root

Internal Structure of a Root
Pericycle: It is made up of parenchyma cells. Secondary
roots are originated from this layer.
Endodermis: Controls the passage of water to transport
tissue.
Vascular bundle: It is composed of xylem and phloem
tubes.

*** In dicot, woody plants between xylem and
phloem there is vascular cambium. It adds new
xylem and phloem when the root is grown.