Which statement about cholesterol molecules is true?

They alter the fluidity of the membrane.

They help hold a membrane together.

They disrupt membrane function.

Which statement about diffusion is false ?

Simple diffusion depends upon specific carrier proteins

In diffusion, molecules move from areas of greater concentration to areas of lesser concentration

Diffusion continues until the molecular concentrations are in equilibrium

If a hospital patient is mistakenly given an IV of pure water instead of a saline solution that is isotonic to blood, the patient’s red blood cells will

absorb water from the plasma and eventually burst

release water to the plasma along its concentration gradient

transport equal amounts of water across the cell membrane in both directions

The difference between osmosis and diffusion is that

osmosis refers specifically to the movement of water, whereas diffusion refers to the movement of any type of molecules

diffusion is passive transport, whereas osmosis is active transport

only in diffusion do molecules move from areas of high concentration to areas of low concentration

osmosis is the opposite of diffusion and only involves the movement of water

In a hypothetical study, cells are placed in a solution of glucose in which the concentration of glucose is gradually increased. At first, the rate at which glucose enters the cells is found to increase as the concentration of the glucose solution is increased. But when the glucose concentration of the solution is increased above 10 M, the rate no longer increases. Which of the following is the likely mechanism for glucose transport into these cells?

Facilitated diffusion via a carrier protein

Facilitated diffusion via a channel protein

The movement of potassium into an animal cell requires

low cellular concentrations of sodium

high cellular concentrations of potassium

When a plant cell, such as one from a tulip stem, is submerged in a very hypotonic solution, what is likely to occur?

Plasmolysis will shrink the interior.

Which statement is correct about diffusion?

It's a passive process which molecules move from a region of higher to lower concentration.

It's very rapid over long distances.

It requires an energy expenditure by the cell.

It's an active process where molecules move from a region of lower to higher concentration.

Which of the following is major cause of the size limits for certain types of cells?

the need for sufficient surface area to support the cell's metabolic needs.

evolutionary progression in cell size; more primitive cells have smaller sizes.

limitation on the strength and integrity of the plasma membrane as cell size increases

the difference in plasma membranes between prokaryotes and eukaryotes

Which of the following is not a job of a protein

store and transmit genetic information

Do much of the work in cells and transport materials

AP Biology: Unit 2 Review

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AP Biology: Unit 2 Review

Quiz

•

Biology

•

10th - 12th Grade

•

Practice Problem

•

Hard

•

NGSS

HS-LS1-3, HS-LS1-6, HS-LS1-1

Standards-aligned

Charles Martinez

FREE Resource

58 questions

Show all answers

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which way would the purple molecules move through the semi-permeable membrane?

From the A side to the B-side

From the B side to the A side

none of the purple molecules would move

they would move equally back and forth in a state of dynamic equilibrium

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The picture is an example of...

active tranport

passive transport

diffusion

osmosis

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The cell membrane is solid and rigid.

true

false

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is responsible for getting large or charged (polar) molecules across the cell membrane?

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Controlling what goes into or out of the cell with the help of energy is called

active transport

endocytosis

passive transport

exocytosis

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Hydrophobic region of the cell membrane?

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which form of active transport is being shown? (Inside of the cell is tan colored)

Facilitated Diffusion

Exocytosis

Endocytosis

Receptor-mediated endocytosis

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AP Biology: Unit 2 Review

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Which way would the purple molecules move through the semi-permeable membrane?

The picture is an example of...

The cell membrane is solid and rigid.

Which of the following is responsible for getting large or charged (polar) molecules across the cell membrane?

Controlling what goes into or out of the cell with the help of energy is called

Hydrophobic region of the cell membrane?

Which form of active transport is being shown? (Inside of the cell is tan colored)

A saltwater snail is placed in freshwater. What happens to its cells?

Which statement about cholesterol molecules is true?

Which type of membrane protein would likely be most easily removed in a laboratory experiment?

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