Leaf Structure Revision

What is the name of the clear layer of cells (H) on top of the leaf?

• Cuticle

• Air space

• Guard cell

• Upper epidermis

The leaf has a shiny, waxy cuticle around it to

• increase the rate of photosynthesis
• attract more light
• control water loss
• stop carbon dioxide and oxygen gases escaping

What is the name of cells (part D) that surround the pores of a leaf?

• Palisade cells

• Guard cell

• Spongy layer

• Lower epidermis

The role of the guard cell is to

• help control the temperature of the plant
• control how much water enters the leaf
• control how much glucose is stored
• control the movement of water vapour & gases 

Transpiration helps the plant

• make more sugars at night
• move water from the roots to the stem and leaves
• move sugars from the leaf to be stored in the stem & roots
• make more chloroplasts

What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

• Palisade cells

• Guard cell

• Spongy layer

• Lower epidermis

carries water and minerals from roots to other parts of the plant

• xylem 
• phloem
• stoma
• guard cell

What is letter "D" pointing to?

• upper epidermis

• palisade mesophyll

• spongy mesophyll

• bundle sheath

Which number is pointing to the xylem of the leaf?

• 3

• 4

• 5

• 6

Which number is pointing to the stomata?

• 6

• 7

• 8

• 9