Question

J. Multiple Choice Questions.
1. Raisins swell up when put in
(a) saturated sugar solution
(b) mustard oil
(c) rain water
(d) concentrated salt solution
2. Root hairs are suited for absorbing water from
the soil because
(a) root hairs have semipermeable
membrane
(b) roots hairs provide a large surface area
for absorption
(c) roots hairs contain cell sap of higher
salt concentration than the surrounding
water
(d) all these three
3. The vascular tissue in leaves is located
(a) only in stalk
(b) only in lamina
(C) only in midrib
(d) in midrib and its branches
4. Pressure developed in the root due to
continuous inflow of water is called
(a) turgor pressure
(b) osmotic pressure
(c) transpiration pull
(d) root pressure


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Answer 1

Answer:

1 (c) rain water

2 (d) all of these

3 (d) mid rib and its branches

4(d) root pressure.