Cell Transport Mechanisms Quiz

What is the primary role of ATP in cells?

• To provide energy for cellular processes

• To store genetic information

Tags

NGSS.HS-LS1-7

Which of the following is an example of active transport?

• Sodium-potassium pump

• Osmosis of water

What is the main difference between diffusion and osmosis?

• Diffusion involves water, osmosis does not

• Osmosis involves water moving across a membrane, diffusion does not

Which factor does NOT affect the rate of diffusion?

• Color of the substance

• Size of molecules

In facilitated diffusion, what assists the movement of substances across the cell membrane?

• Transport proteins

• Lipid bilayer

How does the concentration gradient affect diffusion?

• It speeds up the process

• It reverses the direction of diffusion

Which of the following processes requires ATP?

• Active transport

• Osmosis

Why is facilitated diffusion considered a passive transport mechanism?

• It does not require energy and moves substances down their concentration gradient

• It involves the use of vesicles

Which of the following is a characteristic of active transport?

• Involves only water molecules

• Moves substances against their concentration gradient

What role do carrier proteins play in facilitated diffusion?

• They help transport specific molecules across the cell membrane

• They provide energy for the process