F: Plant Transport

Question 1

Evaporation

Answer 1

The process in which a liquid turns into a gas

Question 2

Lignin

Answer 2

A hard cellulose-like substance which gives rigidity to plant tissues

Question 3

Mineral salts

Answer 3

Inorganic chemical compounds e.g. nitrates, the ions of which are needed by the plant

Question 4

Omnivore

Answer 4

An animal which feeds on both plants and animals

Question 5

Phloem vessels

Answer 5

Vein-like structures through which food is transported round a plant

Question 6

Root hair cells

Answer 6

Tiny hairs covering the ends of the smallest roots. They give the root a very large surface area through which to absorb water and mineral salts from the soil.

Question 7

Sucrose

Answer 7

A complex sugar. Sugar cane and sugar beet store sucrose instead of starch - and we use it to sweeten food.

Question 8

Transpiration

Answer 8

The loss of water from leaves by evaporation. It is much faster when stomata are open than when they are closed.

Question 9

Transpiration stream

Answer 9

The constant cycling of water from the soil, into the plant through its roots, up the plant stem due to tension and capillarity to the leaves, where it is lost by evaporation to the atmosphere, or used up in photosynthesis.

Question 10

Vascular bundle

Answer 10

Vein-like structure in the roots, stems and leaves of plants, consisting of xylem and phloem tubes.

Question 11

Xylem vessels

Answer 11

Vein-like tissues which transport water and minerals up a plant to the leaves