Transcript Chapter 16: Section 1 The World of Cells

Why are cells important?
They help us do what we do
 Breakdown food
 Move
 Grow
 Reproduce
Cells have jobs
Some help move
things around the
organism
Some fight disease
Bacteria
Smallest organisms on Earth
Made of only one cell
Larger Organisms
Made of many cells
What are cells made of?
A cell is like a bakery
Many parts
doing
different jobs
Organelles
Each does a different job
In the bakery:
 The workers
Cell membrane
Holds cell together
Is a boundary
Plants also have cell wall for
support and protection
In bakery:
The walls
Cytoplasm
 Like Jello/Where activities take place
 In Bakery:
 The kitchen
•
Nucleus
Vacuoles
Contains chromosomes
(plan for cell)
In Bakery:
the manager
stores food, waste
In bakery:
pantry, trash can
Mitochondria
Where cellular
respiration
happens
Food energy turned
into energy cell can
use
In the bakery:
oven
Photosynthesis
Makes food for cell
Occurs in leaf cells
Chloroplasts
Makes leaves
green
Some cool cell models