OBJECTIVE FOR Diffusion. Osmosis Absorption. Translocation & Transpiration

Multiple Choice Questions (MCQs)

1. The pressure exerted by the diffusing particles is    pressure.

(a) Solute         (h) Diffusion                   (c ) Imbibtion     (d) None

2. Which of the following is an imbibant?

(a) Milk            (b) clay                         (c) Leaf             (d) Sugar

3. The maximum_. pressure that develops when a solution is separated from its solvent by a semi permeable membrane is called:

(a) Diffusion     (b) Osmotic                   (c) Solute          (d) Turgor

4. The pressure exerted by the cell sap on the cell wall of plant
   cell is called turgor pressure.

(a) Diffusion (b) Osmotic                        (c) Solute          (d) Turgor

5. The decrease in water potential due to dissolution of solute
   molecules or ions in water is potential.

(a) Osmotic      (6) Matric                       (d) Water           (d) Pressure

6. The turgor pressure (TP) exerted by the vacuole is called
   pressure potential.

(a) Osmotic      (b) Matric                       (d) Water          (d) Pressure

7. Percentage of minerals present in soil is:

(a) 10              (b) 30                           (c) 40                (d) 60

8. The size of coarse sand is:

(a) 2.00-0.20 (b) 1.00-0.20                    (c) 100-1.20 (d) None

9. Water adsorbed on the surface of soil colloids is water.

(a) Capillary’     04 Hygroscopic               (c) Gravitational (d) None

1. The water which fills the spaces between the non colloidal
   smaller soil particles is water.

(a) Capillary      (b) Hygroscopic              (c) Gravitational (d) None

1. Casparian strips are present in:

(a) Endodermis (b) Epidermis                 (c) Xylem           (d) Cortex

2. The hydrostatic pressure generated in the root which forces
   the water upward in the stem is pressure.

(a) Diffusion     (b) Osmotic                   (c) Root             (d) Turgor

3. The factor which decrease transpiration is:

(a) Water          (b) Humid itn               (c) Wind            (d) Light

4. Starch sugar hypothesis was put forward by:

(a) Dixon         (h) Sayre                      (c) Robert         (d) none
Answers

I. (b)  2. (1) 3. (b) 4. (d)  5. (a)   6. (d)  7. (c)  8. (a)9. (b)
10. (b) II. (a) 12. (c) 13. (b) 14. (b)

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