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RQ is measured with Ganong's respiroscope. If in its Hg level remains constant during experiment, the RQ value comes to unit. When it shows rise in Hg level the

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Important Questions on Plant Physiology

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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 14
Ethanol is commercially produced through a particular species of:
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 15
A process that makes important difference between C3 and C4 plants is:
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 16
Bioassay of IAA (Indole acetic acid) is tested by
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 17
The activity of α-amylase in the endosperm of barley germinating seeds is induced by
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 18
Leaf abscission, fruit fall, bud dormancy occurs by which phytohormone
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 19
The ripening of fruits can be hastened by treatment with
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 20

Read the following statements
(a) It is believed that florigen is synthesized due to perceiving light in leaves & later on it passes to shoot apex & caused flowering
(b) Induction of early flowering in plants by pretreatment of their seeds at low temperature is known as vernalization
(c) Cotton & Sunflower are long day plants
(d) The size of apple can be increased by the application of pomalin GA4,GA1+ Cytokinin like 6 - benzyladenine)

Pickup the correct statements

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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 21
Farmer in particular region were concerned that premature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield