AB Quiz #3 Cell Membranes & Cell Transport + Quiz #2: The Cell Membrane

Question 1

The basic structure of the cell membrane is

Accepted Answer

a phospholipid bilayer.

Question 2

The primary function of the cell membrane is

Accepted Answer

to control what moves in and out of the cell.

Question 3

What is concentration?

Accepted Answer

amount of things in a given area

Question 4

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

Accepted Answer

hypotonic

Question 5

This image is an example of what kind of molecule in the cell membrane?

Accepted Answer

protein

Question 6

The lipid bilayer allows what kinds of substances to pass through without help from a protein?

Accepted Answer

carbon dioxide and oxygen

Question 7

Which of these is selectively permeable?

Accepted Answer

all of these are selectively permeable

Question 8

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

Accepted Answer

hypertonic

Question 9

Passive transport

Accepted Answer

doesn't require energy.

Question 10

What three molecules make up the cell membrane?

Accepted Answer

carbohydrates, proteins and lipids

Question 11

What is structure "D" The purple/pink structures?

Accepted Answer

a protein

Question 12

What is the purpose of a Carbohydrate (glycoprotein)?

Accepted Answer

identifies the cell

Question 13

The following picture is a...

Accepted Answer

phospholipid

Question 14

What molecules are imbedded in the bilayer?

Accepted Answer

proteins

Question 15

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

Accepted Answer

exocytosis

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

A high concentration of water and less solute than outside the cell.

Accepted Answer

hypotonic

Question 18

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

Accepted Answer

endocytosis

Question 19

__________ is the diffusion of water through a semipermeable membrane.

Accepted Answer

osmosis

Question 20

Equilibrium is reached

Accepted Answer

when particles are evenly distributed through the space.

Question 21

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

Accepted Answer

diffusion

Question 22

Which of the following molecules do not cross the cell membrane?

Accepted Answer

sugars & ions.

Question 23

Active transport

Accepted Answer

all of the answers are correct

Question 24

Which of the following is NOT a function of the proteins in the cell membrane?

Accepted Answer

support

Question 25

The phosophilipid head is considered...

Accepted Answer

hydrophilic

Question 26

Another name for the cell membrane is

Accepted Answer

the plasma membrane

Question 27

The purple end of this molecule is a _____.

Accepted Answer

a polar phosphate

Question 28

A low concentration of water and high solute than outside the cell.

Accepted Answer

hypertonic

Question 29

The tails of a phosopholipid are considered...

Accepted Answer

hydrophobic

Question 30

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

Accepted Answer

hypotonic

Question 31

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

Accepted Answer

isotonic

Question 32

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

Accepted Answer

hypertonic

Question 33

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

AB Quiz #3 Cell Membranes & Cell Transport + Quiz #2: The Cell Membrane

Questions 33

AB Quiz #3 Cell Membranes & Cell Transport + Quiz #2: The Cell Membrane

Questions 33