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51. The plant cellulose is
A. Hydrophilic
B. Hygroscopic
C. Hydathode
D. Hydrophobic
Explanation:
52. The diffusion of a solvent from a region of higher concentration to a region lower concentration through a semipermeable membrane is called
A. Osmosis
B. Diffusion
C. Imbibition
D. Water potential
Explanation:
53. A major role in the absorption of water by root hair cells involves
A. Osmotic potential
B. Turgor pressure
C. Capillary force
D. Diffusion
Explanation:
54. The pressure exerted on root hair due to increase in the volume of cell sap is called
A. Osmotic pressure
B. Water potential
C. Turgor pressure
D. Capillary force
Explanation:
55. The conducting elements in gymnosperms are
A. Passage cells
B. Epidermal cells
C. Parenchymatous cells
D. Trachieds
Explanation:
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