cell phys quiz

Question 0

some human cells have cilia, which:

Answer 0

sweep materials across the cell surface

Question 1

the function of proteins in cell membranes is to:

Answer 1

form pores or channels, form receptor sites for hormones, and to be carrier enzymes

Question 2

the cell organelle that synthesizes carbohydrates and secretes cell products is the:

Answer 2

Golgi apparatus

Question 3

the cell organelle that transports materials within a cell is the:

Answer 3

endoplasmic reticulum

Question 4

the cell organelles that break down damaged or misfolded proteins are the:

Answer 4

proteasomes

Question 5

the mitochondria are cell organelles that:

Answer 5

are the site of cell respiration

Question 6

the nucleus is the control center of the cell because it contains:

Answer 6

DNA in the chromosomes

Question 7

chromosomes are made of ____ and are found in the _____ of cells

Answer 7

DNA/nucleus

Question 8

facilitated diffusion depends on:

Answer 8

transporters that are part of the cell membrane

Question 9

the process of facilitated diffusion is important to:

Answer 9

enable most body cells to take in glucose

Question 10

the process of filtration is important to:

Answer 10

form tissue fluid and bring nutrients to tissues

Question 11

the process of filtration is also important to:

Answer 11

form urine in the kidneys

Question 12

the movement of molecules from an area of greater concentration to an area of lesser concentration is called:

Answer 12

diffusion

Question 13

the energy for diffusion is provided by:

Answer 13

the free energy, or natural movement of molecules

Question 14

the movement of molecules from an area of lesser concentration to an area of greater concentration is called:

Answer 14

active transport

Question 15

the process of active transport is important to:

Answer 15

enable cells of the kidneys to reabsorb small proteins

Question 16

the process of osmosis involves:

Answer 16

the diffusion of water through a membrane

Question 17

the process of osmosis is important to:

Answer 17

permit the kidneys to reabsorb water

Question 18

before mitosis can take place, what must happen?

Answer 18

DNA replication must create two sets of chromosomes

Question 19

human cells that seem to be unable to undergo extensive mitosis are:

Answer 19

muscle and nerve cells

Question 20

meiosis takes place in the:

Answer 20

ovaries or testes

Question 21

in protein synthesis, a function of ribosomes is to:

Answer 21

form peptide bonds between amino acids

Question 22

the movement of water and dissolved materials through a membrane from an area of high pressure to an area of low pressure is called:

Answer 22

filtration

Question 23

the energy for the process of filtration is provided by:

Answer 23

blood pressure in the capillaries

Question 24

the process of active transport is important to:

Answer 24

enable cells of the small intestine to absorb glucose and amino acids

Question 25

the sodium pumps of nerve cells rely on the process of:

Answer 25

active transport