Leaf Structure and Function

Question 1

Cardiac Output Formula

Answer 1

cardiac output = stroke volume x heart rate

Question 2

Suggest why there are more stems in open grassland

Answer 2

• can photosynthesis more

- higher light intensity

Question 3

Carbon Dioxide moves into the leaves by which process?

Answer 3

Diffusion

Question 4

Explain how changes to the guard cells on a warm day help plants to survive

Answer 4

• guard cells change shape - close the stomata

- this reduces water loss (transpiration)

Question 5

The cell that will make the most glucose ?

Answer 5

B

Question 6

Describe how carbon dioxide enters the leaf.

Answer 6

• Through diffusion (from area of high to low concentration)

- through the stomata

Question 7

Describe the process that takes place in the leaf to produce oxygen

Answer 7

• by photosynthesis
• requires carbon dioxide, water
• light energy needed and glucose is produced

Question 8

Processes for water and mineral ions

Answer 8

water - osmosis

mineral ions - active transport