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Sir.J.C. Bose proposed which of the following theory to explain the process of ascent of sap?
Options
(a) pulsation theory
(b) relay pump theory
(c) transpiration pull theory
(d) capillary force theory
Correct Answer:
pulsation theory
Explanation:
Sir J.C. Bose proposed the pulsatory theory in 1923 to explain the mechanism of ascent of sap. According to this theory, the inner cortical cells have the ability to generate the electrical impulses which result in rhythmic pulsations. These pulses are responsible for the ascent of sap in the tracheary elements.
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Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When the light intensity changes from 1 to 100 units, the response of the eye
- The guts of cow and buffalo possess:
- Reduction of NADP takes place in
- Prothrombin, which helps in clotting of blood, is released by
- High increase in population is due to
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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