Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?
Suppose there were plants that had a high concentration of Chlorophyll b, but
lacked chlorophyll a, would it carry out photosynthesis? Then why do plants
have chlorophyll b and other accessory pigments?
RuBisCO is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCO carries out more carboxylation in C4
plants?
3. Even though a very few cells in a C4 plant carry out the biosynthetic – Calvin pathway, yet they are highly productive. Can you discuss why?
By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain.
By looking at a plant externally can you tell whether a plant is C3
or C4? Why and how?
Analyse the events during every stage of cell cycle and notice how the following
two parameters change
(i) number of chromosomes (N) per cell
(ii) amount of DNA content (C) per cell
+91 94284 01196
© Copyright 2025. Doubtora. All Rights Reserved
