Cells Unit Review

Which of the following is NOT a principle of the cell theory?

• Cells are the basic units of life.
• All living things are made of cells.
• Very few cells reproduce.
• All cells are produced by existing cells.

Prokaryotes lack...

• cytoplasm
• a nucleus.
• a cell membrane.
• genetic material.

Which of the following is a function of the nucleus?

• stores DNA
• controls most of the cell’s processes
• contains the information needed to make proteins
• all of the others!

Tags

NGSS.MS-LS1-2

Which organelle breaks down food into molecules cells can use for energy (creates ATP)?

• Golgi apparatus 
• endoplasmic reticulum
• lysosome
• mitochondrion

Tags

NGSS.MS-LS1-7

Which structure synthesizes proteins using coded instructions that come from the nucleus?

• Golgi apparatus
• vacuole
• mitochondrion
• ribosome

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which organelle would you expect to find in only plant cells but not animal cells?

• mitochondrion
• chloroplast
• ribosome
• smooth endoplasmic reticulum

Tags

NGSS.MS-LS1-6

Which of the following structures serves as the cell’s boundary from its environment and acts to control what substances can enter and exit the cell?

• mitochondrion
• chloroplast
• cell membrane
• channel proteins

The main function of the cell wall is to

• support, shape, and protect plant cells.
• direct the activities of plant cell.
• store DNA in plant cells.
• help plant cells move.

Diffusion is the movement of molecules from

• an area of low concentration to an area of high concentration.
• an area of high concentration to an area of low concentration.
• an area of equilibrium to an area of high concentration.
• all of the others

Tags

NGSS.MS-LS1-2

Diffusion occurs because

• molecules constantly move and collide with each other.
• the concentration of a solution is never the same throughout a solution.
• the concentration of a solution is always the same throughout a solution.
• molecules never move or collide with each other.