Cell Physiology

Question 1

What is the process of diffusion?

Answer 1

A substance flows from an area of high concentration to low concentration

Question 2

Diffusion, osmosis, channel-mediated diffusion, and carrier-mediated diffusion are examples of what?

Answer 2

Passive transport

Question 3

What is the process of osmosis?

Answer 3

Water flows from a hypotonic solution to a hypertonic solution

Question 4

What are enzymes? (3)

Answer 4

have an active site, regulate metabolic pathways, serve as a catalyst to facilitate chemical reactions at the cell membrane

Question 5

What is an example of filtration?

Answer 5

The hydrostatic pressure in the capillary or a kidney causes movement of solute

Question 6

Meiosis occurs only in?

Answer 6

Sex cells

Question 7

Phagocytosis uses?

Answer 7

Endocytosis

Question 8

What type of saline solution contains higher concentration of salt than red blood cells?

Answer 8

Hypertonic

Question 9

Materials can be moved from a low concentration to a high concentration through?

Answer 9

Active transport

Question 10

What would happen to a cell if it were placed in a hypotonic solution?

Answer 10

There would be a net gain of water into the cell

Question 11

The engulfing of microbes by white blood cells is an example of?

Answer 11

Phagocytosis

Question 12

After phagocytosis occurs, enzymes from which organelle can digest what is in the vesicle?

Answer 12

Lysosome Enzymes

Question 13

What is the location at which the enzyme molecule binds to the substance it acts on?

Answer 13

Active site

Question 14

What is a molecule or other agent that alters enzyme function by changing the enzyme’s shape?

Answer 14

Allosteric Effector

Question 15

What factors can have an effect on the function of an enzyme?

Answer 15

Temperature, pH, and some antibiotics

Question 16

T/F

Protein synthesis is an antibiotic pathway for cells.

Answer 16

True

Question 17

T/F

A semipermeable membrane is needed for diffusion to occur.

Answer 17

True

Question 18

T/F

One of the advantages of active transport is that it can move materials up, or against its concentration gradient.

Answer 18

True

Question 19

T/F

The sodium-potassium pump is an example of a passive transport process.

Answer 19

False

Question 20

T/F

All enzyme makes end with the suffix “-ase.”

Answer 20

True

Question 21

T/F

Allosteric effectors activate or inactivate enzymes by changing the cell of the enzyme’s active site.

Answer 21

True