Plant Physiology & Metabolism
MM: 50 Time: 2 hours
Section A
Q,2 Attempt all the following parts (Each part carries 1 mark)
(10x1=10)
(i)Define Root Pressure.
(ii)What are essential elements?
(iii)Give the function of Phloem.
(iv)List the Photosynthetic Pigments.
(v)How is Glycolysis significant in respiration?
(vi)Enzymes are essential part of plant metabolism. Give reason.
(vii)What is nitrogen fixation?
(viii)Plant Growth Regulator are useful in agriculture. Discuss.
(ix)Define Vernalization.
(x) Distinguish between macro- and micronutrients.
Section B
Attempt any FOUR questions of the following (each question carries 5 marks)
(4x5=20)
2.Explain SDP, LDP and Day neutral plants, giving illustrations.
3.Discuss the significant role played by plant growth inhibitors (ABA, ethylene).
4.Describe the functional purpose of TCA cycle in respiration.
5.Write the distinguishing features of C3, C4 and CAM pathways of carbon
fixation.
6. Give a detailed account of Girdling experiment.