Topic 1 Active Transport %

Question 1

What is active transport

Answer 1

Particles moving against a concentration gradient energy is used form respiration
Up the concentration gradient
From a low concentration to a high concentration

Question 2

Where does active transport occur in plants

Answer 2

Plant absorbs minerals Through the root hair cells against a concentration gradient
Requires energy from respiration to work
Concentration of minerals is usually high in the root cells than in the soil around them

Question 3

Where does active transport occur in humans

Answer 3

Small intestine
Works against a concentration gradient
Glucose can be taken into the bloodstream when its concentration in the blood is already higher than in the gut
It can then be transported to cells where it is used for respiration


Question 4

What are the microscope hairs on a root hair cell useful for

Answer 4

Gives the plant a larger surface area for absorbing water and mineral ions needed

Question 5

What do pants need mineral ions for

Answer 5

For healthy growth

Question 6

Where is the concentration of minerals higher

Answer 6

In the root hair cell rather that the soil

Question 7

What is active transport used for in the gut

Answer 7

When there is a lower concentration of nutrients in the gut but a higher concentration of nutrients in the blood

Question 8

What does active transport allow to happen in the gut

Answer 8

Nutrients to be taken into the blood despite it having a higher concentration than the gut