Cell Membranes, Diffusion and Osmosis

Question 1

The stuff that is dissolved is the _________.

Accepted Answer

solute

Question 2

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

Accepted Answer

hypotonic

Question 3

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

Accepted Answer

exocytosis

Question 4

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

Accepted Answer

hypertonic

Question 5

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

Accepted Answer

endocytosis

Question 6

Active transport

Accepted Answer

all of the answers are correct

Question 7

What is structure "D"?

Accepted Answer

a protein

Question 8

The basic structure of the cell membrane is

Accepted Answer

a phospholipid bilayer.

Question 9

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

Accepted Answer

diffusion

Question 10

What molecules are imbedded in the bilayer?

Accepted Answer

proteins

Question 11

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

Accepted Answer

isotonic

Question 12

"A" is

Accepted Answer

a hydrophilic phosphate "head"

Question 13

__________ is the diffusion of water through a semipermeable membrane.

Accepted Answer

osmosis

Question 14

The stuff that does the dissolving is the __________.

Accepted Answer

solvent

Question 15

Passive transport

Accepted Answer

doesn't require energy.

Question 16

The primary function of the cell membrane is

Accepted Answer

to control what moves in and out of the cell.

Question 17

Which of these is selectively permeable?

Accepted Answer

all of these are selectively permeable

Question 18

What kind of solution is the red blood cell on the right in?

Accepted Answer

hypertonic

Question 19

What kind of solution is the red blood cell in the middle in?

Accepted Answer

isotonic

Question 20

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 21

What is concentration?

Accepted Answer

amount of things in a given area

Question 22

Another name for the cell membrane is

Accepted Answer

the plasma membrane

Question 23

Equilibrium is reached

Accepted Answer

when particles are evenly distributed through the space.

Question 24

What kind of solution is the red blood cell on the left in?

Accepted Answer

hypotonic

Cell Membranes, Diffusion and Osmosis

Questions 24

Cell Membranes, Diffusion and Osmosis

Questions 24