Question

Exercises
A. Tick the most appropriate answer.
1. Root hairs are found in the outermost layer of root called
a. dermis.
b. epidermis.
C. cortex.
d. xylem.
2. In phloem, the direction in which translocation of food takes place is
a. downwards.
b. upwards.
c. both upwards and downwards
d. none of these
3. Water is absorbed by the root hair cells through
a. osmosis.
b. active transport. c. transpiration. d. ascent of sap.
4. The movement of salt or mineral molecules from a region of their higher concentration to a region
of their lower concentration is called
a. osmosis.
b. active transport. c diffusion.
d. blending.
5. The fluid containing mineral salts and water enclosed in a vacuole of a cell is called
a, cytoplasm.
b. nucleoplasm. c. cell sap.
d. tonoplast.
6. The pressure developed in roots due to the continuous inflow of water which pushes the sap
upwards is called
a root pressure. b. sap pressure. c. transpiration pull. d. stem pressure.
7. The loss of water vapour through the stomata of the leaves is called
a. wilting
b. translocation.
c. transpiration. d. transportation.
8. Transpiration occurs through openings in leaves called
a. pores.
b. guard cells.
d. barks.
c. stomata.​

Answer 1

Answer:

1.a

2.b

3.a

4.c

5.c

6.a

7.c

8.c