Leaf Structure

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

Tags

NGSS.MS-LS1-5

Most of the chloroplast cells are found in the

• upper epidermis
• pallisade mesophyll layer
• lower epidermis
• stomata

The water needed for photosynthesis comes into the leaves through the

• upper epidermis
• stomata
• guard cells
• xylem cells

Tags

NGSS.MS-LS1-6

The important gases, carbon dioxide and oxygen, enter and leave the leaf through the

• upper epidermis
• phloem
• stomata
• guard cells

Tags

NGSS.MS-LS1-6

The reactants needed for photosynthesis to occur are:

• carbon dioxide & water
• carbon dioxide & oxygen
• oxygen & water
• carbon dioxide, oxygen & water

Tags

NGSS.MS-LS1-6

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 

Sugar and the products of photosynthesis move through the plant in 

• the phloem cells
• the xylem cells
• the root hair cells
• palisade mesophyll layer

Tags

NGSS.MS-LS2-3

Identify structure 1 in the diagram.

• Spongy mesophyll

• Vascular bundle

• Waxy cuticle

• Palisade mesophyll

Tags

NGSS.MS-LS1-2

Identify structure 3 in the diagram

• Waxy cuticle

• Palisade mesophyll

• Upper epidermis

• Guard cell

Tags

NGSS.MS-LS1-2

Identify structure 4 in the diagram.

• Spongy mesophyll

• Guard cell

• Phloem

• Palisade mesophyll

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6