Section I Passive Transport

Question 0

There is no net movement when there is

Answer 0

Equilibrium

Question 1

What is plasmolysis

Answer 1

When turgor press is lost, the plant wilts and the cell shrinks

Question 2

The net direction of water molecule movement in osmosis is dependent on

Answer 2

Concentration of water

Solute dissolved in solution

Question 3

What 3 things does the ability of a molecule to go through a membrane depend on

Answer 3

Size of molecule
Type of molecule (polar, nonpolar)
Molecule structure of the membrane

Question 4

What is a concentration gradient

Answer 4

Difference in concentration of the substances

Question 5

What is passive transport

Answer 5

Movement across the membrane that does not require energy

Question 6

What are contractile vacuoles

Answer 6

Specialized structures that remove water

Question 7

Hypotonic

• outside of the cell:
• inside of the cell:
• effect on the cell:

Answer 7

Low solute, high solvent
High solute, low solvent
Cell swells

Question 8

Isotonic

• outside of the cell:
• inside of the cell:
• effect on the cell:

Answer 8

Same solute and solvent
Same solute and solvent
Cell stays the same

Question 9

Facilitated diffusion uses

Answer 9

Carrier proteins

Question 10

Ion channels are either ___ or ___

Answer 10

Opened or closed

Question 11

In a concentration gradient the substances are separated by a

Answer 11

Membrane

Question 12

The condition where the gradient disappears

Answer 12

Equilibrium

Question 13

What are ion channels

Answer 13

Transport proteins that allow ions to pass through the cell membrane

Question 14

Movement of water from an area of high concentration to a lower concentration

Answer 14

Osmosis

Question 15

The movement of water is plant cells can cause

Answer 15

Turgor pressure

Question 16

Hypertonic

• outside of the cell:
• inside of the cell:
• effect on the cell:

Answer 16

High solute, low solvent
Low solute, high solvent
Cell shrinks

Question 18

Carrier proteins speed up

Answer 18

Diffusion

Question 19

In passive transport the movement is based on

Answer 19

Presence of concentration gradient

Question 22

Animal cells do not have

Answer 22

Turgor pressure

Question 23

What happens to a plant cell when placed in distiller water

Answer 23

Cell stiffens but generally retains shape

Question 24

What happens when a plant cell is placed in salt water

Answer 24

Cell body shrinks and pulls away from the cell wall

Question 25

Why is it bad for a single celled organism to live in a hypotonic environment

Answer 25

If it doesn’t control the intake of water, it will die

Question 26

In diffusion across a membrane, cell membranes have the ability to

Answer 26

Control what passes through them

Question 26

What are the three types of solutions

Answer 26

Hypertonic
Hypotonic
Isotonic

Question 26

What is turgor pressure

Answer 26

When the plant becomes rigid due to water pressure inside the cell

Question 27

What is cystic fibrosis and example of

Answer 27

Cellular transport

Question 28

Carrier proteins are specific to

Answer 28

What they will transport across the membrane

Question 29

What is cytolysis

Answer 29

Bursting of the cell

Question 30

Process by which substances move from an area of high concentrations to an area of lower concentration

Answer 30

Diffusion

Question 31

Closed channels will respond to different ___ to allow things to

Answer 31

Stimuli

Pass through them

Question 32

What is the net movement in an isotonic solution

Answer 32

There is none

It’s an equilibrium

Question 32

Carrier proteins are

Answer 32

Passive