ACE Bio Roots, Stems and Leaves

function of phloem

• transports water
• stores water
• transports sugar
• stores sugar

Tags

NGSS.MS-LS1-2

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 

Tags

NGSS.MS-LS1-2

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.HS-LS1-3

The water needed for photosynthesis comes into the leaves through the

• upper epidermis
• stomata
• guard cells
• xylem cells

Recall which of the following form part of the phloem.

• Sieve-tube elements

• Trachieds

• Vessels

• Companion cells

Small openings called ______ are found on the underside of leaves and allow gases to enter or leave the plant cells.

• Phloem
• Chloroplasts
• Xylem
• Stomata

Structure of phloem consists all below, except?

• Sieve tube element

• Tracheids

• Companion cell

• Sieve plate

What is the purpose of root hairs?

• To improve the plants structure

• To keep the roots warm

• To increase surface area for water absorption

• To open the stoma

The main site of photosynthesis in the leaf, containing many chloroplasts.

• cuticle

• upper epidermis

• palisade cells

• bundle sheath cell

Tags

NGSS.MS-LS1-6

forms the veins in leaves and holds the xylem and phloem together

• cuticle

• upper epidermis

• palisade cells

• bundle sheath cell