Review

The plant tissue that carries food materials DOWNWARD from the leaves to the rest of the plant is the ______.

• Phloem

• Stomata

• Chlorophyll

• Xylem

Vascular tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.

• Chlorophyll
• Phloem
• Stomata
• Xylem

How do water enter the roots from the soil?

• diffusion
• osmosis
• transpiration
• active transport

Water vapour exits a plant leaf by

• the stomata
• the epidermis
• the palisade cells
• the spongy mesophyll

Transpiration is

• the movement of water through a plant from the roots up the stem
• the loss of water from the leaves of a plant by the process of evaporation
• the flow of water into plant roots by osmosis from the soil
• the process of minerals and sugars moving through plant veins

This is the definition for which word:The movement of particles down a concentration gradient (from a high concentration to a low concentration)

• Osmosis
• Diffusion
• Active transport
• Transpiration

This is the definition for which word:The movement of water molecules from a high concentration of water to a low concentration of water across a partially permeable membrane.

• Osmosis
• Diffusion
• Active transport
• Transpiration

Why is the evaporation of water from leaves important?

• It cools leaves and helps move water up the plant.
• It makes the plant wilt
• It helps the plant to respire

Which of these is true?

• Xylem vessels carry water and dissolved minerals up the plant
• Phloem tissue carry water and dissolved minerals up the plant
• Xylem vessels carry dissolved sucrose up and down the plant

Where is xylem found in the plant?

• leave -> roots -> stem

• roots -> stem -> leaves

• root hairs -> leaves -> veins

• stem -> roots