Cells and Transport Day 2

Question 1

Particles move from high to low concentration, no energy?

Answer 1

Term: Diffusion. Definition: Passive movement of particles down a concentration gradient, no ATP needed.

Question 2

Uses a protein channel, still passive?

Answer 2

Term: Facilitated Diffusion. Definition: Movement through membrane proteins down a gradient, no ATP required.

Question 3

Low to high concentration, requires ATP?

Answer 3

Term: Active Transport. Definition: Substances move against the gradient via carrier proteins, powered by ATP.

Question 4

Which plant tissue moves water/minerals upwards?

Answer 4

Term: Xylem. Definition: Non-living tubes carrying water/minerals from roots to leaves via transpiration.

Question 5

Which plant tissue moves sugars in both directions?

Answer 5

Term: Phloem. Definition: Living sieve tubes transporting sugars (translocation), requiring energy from ATP.

Question 6

What molecule supplies energy for active transport?

Answer 6

Term: ATP. Definition: Adenosine triphosphate; its hydrolysis releases energy for cellular processes.