Leaf Structure

Question 1

What is the function and structure of a upper Epidermis?

Answer 1

• protects the leave (skin)
• waxy layer
• waterproof

Question 2

What is the function and structure of a Palisade Mesophyll Layer?

Answer 2

• have cylindrical shape
• chloroplasts can move within the cell to regions where light is greatest
• helps absorb light

Question 3

What is the function and structure of a Spongy Mesophyll Layer?

Answer 3

• looks like a sponge

- has air spaces between the laters

Question 4

What is the function and structure of a Lower Epidermis?

Answer 4

• allows gases and water vapour to diffuse in and out of the leaf.
• is a layer one cell thick

Question 5

What is the function and structure of a Guard cell?

Answer 5

• helps the rate of transpiration

- opening and closing the stomata.

Question 6

What is the function and structure of a Leaf Vein?

Answer 6

-long tube shaped
-water and salts enter leaf via the xylem
sugar made by photosynthesis passes out of the leaf via the phloem.

Question 7

What is the structure and the function of a Cuticle?

Answer 7

• prevents water loss
• barrier for water
• prevents contamination.