Topic 2.6: Membrane Transport

Front

What is the pathway of phagocytosis?

Back

Membrane → Lysosome

Front

How much ATP is used to move 30 moles of glucose down a concentration gradient?

Back

0 moles ATP

Front

What type of movement requires no energy and occurs down a concentration gradient?

Back

Passive transport

Front

Does passive transport require energy input?

Back

No, it does not require energy input.

Front

What is the movement of oxygen from alveoli into the blood supply called?

Back

Simple diffusion

Front

What is the primary function of the cell membrane in transport processes?

Back

To regulate the movement of substances in and out of the cell.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

Front

What are the two main types of passive transport?

Back

Simple diffusion and facilitated diffusion.

Front

What role do transport proteins play in facilitated diffusion?

Back

Transport proteins help move substances across the cell membrane without using energy.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.