Active Transport

Question 1

Active Transport

Answer 1

Active transport is the movement of molecules across a membrane, from a region of lower concentration to a region of higher concentration. This requires energy from respiration.

Question 2

T/F: active transport is passive

Answer 2

false, active transport requires energy from the cell. it is the movement of molecules against their concentration gradient

Question 3

True or false? Active transport can only take place across a membrane.

Answer 3

true

Question 4

Which process provides the energy required for active transport?

Answer 4

Respiration

Question 5

Where do plants absorb mineral ions from?

Answer 5

Soil

Question 6

Why can’t plants absorb mineral ions by diffusion?

Answer 6

Their concentration is higher in the cell than in the soil

Question 7

magnesium ions

Answer 7

produce chlorophyll

Question 8

nitrates

Answer 8

produce proteins

Question 9

Which cells in the plant are adapted to absorb mineral ions?

Answer 9

Root hair cells

Question 10

why do root hair cells need lots of mitochondria?

Answer 10

active transport requires energy from cellular respiration that happens in the mitochondria