Topic 2: Organisation: Plants

Question 1

(b) Describe the transport of water through a plant from the roots to the atmosphere 3

Answer 1

(water is) transported in xylem

water evaporates (from leaves)
allow loss of water vapour

through the stomata

Question 2

Explain one way the removal of dissolved sugars from the stem of the
plant causes stunted growth. 2

Answer 2

less (sugars for) respiration

(so) less energy released

Question 3

Suggest how the production of oil on the surface of a leaf may protect the
plant from aphids

Answer 3

(e) (oil) prevents aphids from attaching to leaf or causes aphids to slide off leaf

Question 4

what is a tissue

Answer 4

(e) a group of cells with a similar structure / function