Carbon dioxide joins the photosynthetic pathway in
PS-1
PS-II
light reaction
dark reaction
Which one occurs both during cyclic and non-cyclic modes of photophosphorylation?
Involvement of both PS-1 and PS-II
Formation of ATP
Release of O2
Formation of NADPH
Which one of the following is represented by Calvin cycle?
Reductive carboxylation
Oxidative carboxylation
Photophosphorylation
Oxidative phosphorylation
C4-cycle was discovered by
Hatch and Slack
Calvin
Hill
Arnon
How many turns of Calvin cycle yield one molecule of glucose?
8
2
6
4
Photosynthesis in C4-plants is relatively less limited by atmospheric CO2 levels because
effective pumping of CO2 into bundle sheath cells
rubisco in C4-plants has higher affinity for CO2
four carbon acids are the primary initial CO2 fixation products
the primary fixation of CO2 is mediated via PEP carboxylase
In photosynthesis, energy from light reaction to dark reaction is transferred in the form of
ADP
ATP
RuDP
Chlorophyll
The enzyme that catalyses initial carbon dioxide fixation in C4 plants is
RuBP carboxylase
PEP carboxylase
carbonic anhydrase
carboxydismutase
Pigment acting as a reaction centre during photosynthesis is
carotene
phytochrome
P700
cytochrome
Nine-tenth of all photosynthesis of world (85-90%) is carried out by
large trees with millions of branches and leaves
algae of the ocean
chlorophyll containing ferns of the forest
scientists in the laboratories
