CBSE 11th Standard Biology Subject Plant Growth and Development HOT Questions 2 Marks Questions With Solution 2021
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CBSE 11th Standard Biology Subject Plant Growth and Development HOT Questions 2 Marks Questions With Solution 2021
11th Standard CBSE
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Reg.No. :
Biology
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In a slide showing different types of cells, can you identify which type of the cell may be meristematic and the one which is incapable of dividing and how?
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How does spraying of sugarcane plants with gibberellins increase the yield of sugar?
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How do IBA and 2, 4-D are used in agriculture?
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Explain what is meant by the terms auxin precursors, anti-auxins, free auxins and bound auxins
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Why do cut leaves dipped in cytokinins stay green for longer duration?
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State the antagonistic effect of cytokinin and ABA
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Which of them shows higher relative growth rate?Justify.
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Plant Growth Substances have practical applications. Name the PGS we should use
a) To increase yield of sugarcane.
b) Promote the lateral shoot growth
c) Cause sprouting of potato tuber
d) Inhibit seed germination -
Can you alter the rate of growth in an organism? If yes how?
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What is "Bioassay"?
2 Marks
