Question

(a) Explain the following terms: tanspiration, turgid, flaccid, macronutrients, trace elements.
(b) State one function of xylem and phloem each.
(c) Which one of the following is responsible for transpiration?

i. xylem
ii. phloem
iii. stomata
iv. root

Answer 1

(a) Transpiration is the loss of water from the surface of the leaf.
Turgid means swollen cells that are full of water.
Flaccid means cells that lack water.
Macronutrients are minerals that are required in large quantities by plants.
Trace elements are minerals that are required in small quantities by plants.

(b) Xylem helps in the transportation of water and minerals in a plant. Phloem helps in the translocation or transportation of food in a plant.

(c) (iii) stomata
Transpiration is the loss of water from the stomata of the leaves.