Mechanism of action of cytokinins in plants

Question

Question 1) Define the terms:

i) Choesion - tension theory.

ii) Surface tension.

iii) Km value of an enzyme.

iv) Structure of PSI complex.

v) Transamination.

vi) oxidation of fatty acida.

vii) Synthesis of ethylece.

viii) Signal transduction.

Question 2) Write the essay on the recent theories explaining the mechanism of transpiration.

Question 3) Briefly explain water potential and its components. Add a note on any one method of determining.

Question 4) Describe the mechanism of C₄ pathway. WhyC₄ plants are more efficient than plants?

Question 5) Write the essay on pentose phosphate pathway and its significance.

Question 6) Explain briefly the mechanism of fixation by Rhizobia bacteria.

Question 7) What are fats? Explain the role of malonyl Co A and falty acid synthase in the biosynthesis of falty acids.

Question 9) Briefly explain the mechanism of action of cytokinins in plants. Add a note on their role in agriculture.

Question 10) Explain the role of phytochromes in plantmorpho genesis.