Topic

Plant Biology PYQs

25 previous year questions across 11 subtopics · answers and explanations included

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Showing 8 questions · Hard

1

Which of the following plant hormones employs a phosphorelay system to regulate gene expression?

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2

The mature anther wall comprises an epidermis followed by a layer of radially elongated cells with fibrous bands of callose called endothecium whose function is

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3

Which class of phytochromes is highly abundant in etiolated seedlings and is also light labile?

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4

In which organelle of seeds are stored oils converted to fatty acids and glycerol during germination?

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5

The specific energy source for the reaction ADP + phosphate \rightarrow ATP by the enzyme ATP synthetase (CF1 Coupling Factor) in thylakoid membranes is

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6

Which of the following floral whorls are absent in agamous (ag) mutant of Arabidopsis?

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7

Which one of the following statements is true regarding the magnesium porphyrin ring and the phytol chain of a chlorophyll molecule?

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8

The broad-spectrum herbicide glyphosate, the active ingredient of Roundup, inhibits this enzyme

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