10th Class Chapter No.2 Quiz No.2
Biology MCQs Online Quiz
All MCQs Selected from Old Board Papers
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Total MCQs ( in this Quiz ) = 56

106.Hypotonic solutions have

A. less solute concentration
B. higher solute concentration
C. less solvent concentration
D. equal concentration of solute and solvent

107. Osmosis is

A. movement of water from hypotonic to hypertonic solutions, through semi-permeable membrane
B. loss of water through stomata
C. movement of water from higher solute concentration to low solute concentration
D. movement of molecules from higher to lower concentration

108.Xerophytes have waxy cuticle over their epidermis

A. to reduce water loss from internal tissues
B. to reduce the loss of waste materials
C. to reduce gaseous exchange
D. to protect from animals/ herbivores

109. Halophytes live in

A. sea water
B. pond water
C. lake water
D. canal water

110.In halophytes salts are not allowed to move out through the

A. semi-permeable membrane of vacuoles
B. semi-permeable membrane of cell membrane
C. semi-permeable membrane of nucleus
D. semi-permeable membrane of lysosomes

111. Sap of vacuoles remains:

A. more hypertonic than sea water
B. less hypertonic than sea water
C. more hypotenic than sea water
D. less hypotonic than sea water

112.Which of the following plant belongs to halophytes group?

A. Cactus
B. Rose
C. Sun-flower
D. Sea-grasses

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