Biology Test in Hindi. We covered all the Biology Test in Hindi MCQs in this post for free so that you can practice well for the exam.
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Biology Test in Hindi Objective for Students
If cells are kept in some solution and the net result is that the cell swells up, then the solution is:
(a) Hypertonic
(b) Isotonic
(c) Hypotonic
(d) Acidic
Option c - Hypotonic
The maximum amount of water, that plants need to grow, is absorbed by the following:
(a) Embryonic zone
(b) Growing point
(c) Zone of elongation
(d) Root hairs
Option d - Root hairs
Osmosis is defined as:
(a) Diffusion of solvent (water) through a semipermeable membrane from a less concentrated solution to a more concentrated solution.
(b) Flow of solute from a semipermeable membrane.
(c) Flow of water without a membrane.
(d) Diffusion of suspended particles from higher to lower concentration.
Option a - Diffusion of solvent (water) through a semipermeable membrane from a less concentrated solution to a more concentrated solution
Which one of the following statements about the transport mechanism in plants is correct?
(a) Diffusion of ions and small molecules across the cell membrane requires energy.
(b) Active transport of ions and small molecules across the cell membrane against concentration gradient requires energy.
(c) Cells conserve energy, and no energy is required for the transport of ions and small molecules against the concentration gradient.
(d) Cells do not transport ions across their membrane as these are charged molecules.
Option b - Active transport of ions and small molecules across the cell membrane against concentration gradient requires energy
Which one of the following will happen if the medium surrounding the cell has a higher concentration than the cell?
(a) The cell will gain water.
(b) The cell will die.
(c) There will be no change.
(d) The cell will lose water.
Option d - The cell will lose water
The movement of water molecules through the plasma membrane is called:
(a) Osmosis
(b) Sedimentation
(c) Precipitation
(d) Transpiration
Option a - Osmosis
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