Plant Biology

Water is absorbed by the plant through the roots, and transpiration takes place as the water exits the ________.

• Leaves

• Roots

• Stem

Which part of a plant is responsible for the majority of photosynthesis?

• Leaves

• Roots

• Stem

• Stomata

What tubes transport water from the roots to the leaves?

• Xylem

• Phloem

• Roots

• Stem

What does phloem carry up the stem

• Sugar

• Water

• Oxygen

• All of the above

The leaf has a shiny, waxy cuticle around it to

• increase the rate of photosynthesis

• control water loss

• attract more light

• stop carbon dioxide and oxygen gases escaping

Translocation is...

• the movement of water through the plant from the leaves to the roots

• the movement of glucose from the roots to the stem and leaves

• the movement of water from the roots to the stem and leaves

• the movement of glucose through the plant from the leaves to other parts of the plant

Sugar and the products of photosynthesis move through the plant in

• the phloem cells

• the xylem cells

• the root hair cells

• palisade mesophyll layer

Where does photosynthesis happen in a plant cell?

• Chloroplast

• Vacuole

• Ribosome

• Cytoplasm

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

• upper epidermis
• phloem
• stomata
• guard cells

The products of photosynthesis are...

• glucose and oxygen

• carbon dioxide and water