Science Cell Review 2

What is a cell?

A.where the nucleus gets its power B.the basic unit that makes up living things C.thick fluid where the organelles are D.they assemble compounds called proteins

B. the basic unit that makes up living things

What are organelles?

A.small structures that perform specific functions in a cell B.the thin covering that surrounds a cell C.the thick fluid where things are suspended D.only small ball shaped things

A. small structures that perform specific functions in a cell

What is the nucleus?

A.they assemble compounds called proteins B.the basic unit that makes up living things C.thick fluid where the organelles are D.the part that directs the activities of a cell

D. the part that directs the activities of a cell

Which one is only in a plant?

A.nucleus

B.cell wall C.cell membrane D.cytoplasm

B. cell wall

What is a cell membrane?

A.the rigid outer layer that helps it stand up B.the part that makes proteins C.a flexible covering that allows some things in and some out D.sacs that store fluids

C. a flexible covering that allows some things in and some out

What is cytoplasm?

A.ball shaped organelles B.thick fluid that holds organelles C.thick membranes around cells D.they assemble compounds called proteins

B. thick fluid that holds organelles

These are tiny, not surrounded by membranes, and assemble compounds called proteins.

A.lysosomes

B.vacuoles

C.nucleus

D.ribosomes

D. ribosomes

This receives proteins, then processes them for shipment out of the cell. It is a system of membranes. It modifies proteins.

A.endoplasmic reticulum B.golgi apparatus C.lysosome

D.vacuole

B. golgi apparatus

These ball shaped organelles help break down nutrients and old cell parts. They are common in plants but rare in animals.

A.ribosomes

B.vacuoles

C.lysosomes

D.golgi apparatus

C. lysosomes

These are membrane-bound sacs that are filled with fluid. Animal cells may have some small ones, but plant cells usually have one large one.

A.ribosomes

B.vacuoles

C.cell wall D.golgi apparatus

B. vacuoles

Which are usually only found in plants?

A.ribosomes

B.nucleus

C.chloroplasts

D.mitochondria

C. chloroplasts

What is the job of chloroplasts?

A.they are the power plants of cells B.they process proteins for shipment C.they are a system of tubes for materials to pass through D.they use energy to make food through photosynthesis

D. they use energy to make food through photosynthesis

These large, peanut-shaped organelles are the power plants of cells. Sugars break apart in them making carbon dioxide, water, and energy.

A.ribosomes

B.nucleus

C.chloroplasts

D.mitochondria

D. mitochondria

This is a system of membranes and tubes that create passageways for materials to pass through. They can control levels of chemicals and break down toxic substances.

A.endoplasmic reticulum B.golgi apparatus C.chloroplasts

D.lysosomes

A. endoplasmic reticulum