1.3.3 Active Transport

Question 1

Active transport

Answer 1

The net movement of a substance from an area of low concentration to an area of area of high concentration using energy, across a membrane

Question 2

What does the rate of active transport depend on?

Answer 2

• Going against the concentration gradient
• Mitochondria

Question 3

How does active transport differ from diffusion and osmosis?

Answer 3

-Goes against concentration gradient
-Uses energy

Question 4

Describe an example of active transport in the digestive system?

Answer 4

-Glucose is absorbed out of your gut

Question 5

Where is the energy for active transport acquired?

Answer 5

From respiration

Question 6

Example of active transport in plants

Answer 6

Active transport allow mineral ions to be absorbed into plant hairs

Question 7

Differences between active transport and both diffusion and osmosis

Answer 7

• Active transport uses energy, and they don’t
• Active transport goes against the concentration gradient

Question 8

What does the rate of active transport depend on? (2p)

Answer 8

Going against the concentration gradient
Mitochondria

Question 9

Example of active transport in plants

Answer 9

Mineral ions are moved into the plant ,from the soil, against the concentration gradient

Question 10

Example of active transport in animals

Answer 10

Glucose is absorbed out of your gut against the concentration gradient

Question 11

Ise of mitochondria in active transport

Answer 11

Provide energy from respiration