Cell Membrane Transport Mechanisms

Cell Membrane Transport Mechanisms

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers passive transport across cell membranes, focusing on diffusion and concentration gradients. It explains factors influencing diffusion rates, such as molecule size, temperature, and membrane thickness. The tutorial also discusses membrane permeability, transport proteins, and the role of facilitated diffusion and osmosis in cellular processes.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary driving force behind passive transport across a cell membrane?

Energy input

Electrical charge

Concentration gradient

Membrane thickness

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which factor does NOT influence the rate of diffusion across a membrane?

Color of the molecule

Concentration gradient

Temperature

Molecule size

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required for a molecule to pass through the phospholipid bilayer if it cannot do so on its own?

A thicker membrane

A larger concentration gradient

A membrane protein

A higher temperature

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a molecule that can pass through the lipid bilayer without assistance?

Glucose

Oxygen

Sodium ions

Amino acids

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of transport protein is typically used for the movement of ions across a membrane?

Lipid bilayers

Aquaporins

Channel proteins

Carrier proteins

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of diffusion involves the help of proteins to move substances across the cell membrane?

Osmosis

Facilitated diffusion

Active transport

Simple diffusion

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a characteristic of facilitated diffusion?

Involves transport proteins

Requires energy input

Moves substances down their concentration gradient

Can involve carrier or channel proteins

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?