Cell Membrane & Transport #2

Question 1

What is structure "D"?

Accepted Answer

a protein

Question 2

The primary function of the cell membrane is

Accepted Answer

to control what moves in and out of the cell.

Question 3

Water leaves, cell shrinks; higher solute concentration outside cell than inside = ? solution

Accepted Answer

hypertonic

Question 4

Equilibrium is reached

Accepted Answer

when particles are evenly distributed through the space.

Question 5

Passive transport

Accepted Answer

doesn't require energy.

Question 6

Water enters, cell swells; lower solute concentration outside the cell than inside = __solution

Accepted Answer

hypotonic

Question 7

Which of these is selectively permeable?

Accepted Answer

all of these are selectively permeable

Question 8

Active transport

Accepted Answer

all of the answers are correct

Question 9

Movement of particles from an area of high concentration to an area of lower concentration is:

Accepted Answer

diffusion

Question 10

__________ is the diffusion of water through a semipermeable membrane.

Accepted Answer

osmosis

Question 11

What kind of transport doesn't require the use of energy to move materials across the membrane?

Accepted Answer

all of these don't require the cell to use energy

Question 12

What is concentration?

Accepted Answer

amount of things in a given area

Question 13

Requires energy; vacuole fuses with membrane, contents forced out of cell = ?

Accepted Answer

exocytosis

Question 14

Another name for the cell membrane is

Accepted Answer

the plasma membrane

Question 15

What molecules are imbedded in the bilayer?

Accepted Answer

proteins

Question 16

A cell is in a ____solution when: size doesn't change; water goes in and out at the same rate

Accepted Answer

isotonic

Question 17

Requires energy; materials enter pockets in cell membrane, then forms vacuole in cytoplasm = ?

Accepted Answer

endocytosis

Questions 17