EASY
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C4 plant is characterized by

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Important Questions on Photosynthesis in Higher Plants

MEDIUM
In the maize plant, CO2 fixation occurs in both mesophyll and bundle sheath cells. The enzymes involved in these cells for the process respectively are
HARD

Series of enzymes involved in the given reactions of C3 cycle

(i) A6c+B3cC4c+D5c

(ii) C4c+E3cF7c

(iii) D5cG5c

(iv) G5c+ATPH5c

MEDIUM
Two independent experiments related to photosynthesis were conducted, one with O18-labelled water (experiment P) and the other C14-labelled CO2 (experiment Q). Which one of the following options lists the first labelled products in experiments P and Q, respectively?
EASY
The glycolytic reversal involves following steps of Calvin cycle ________.
EASY
According to Dr. Arnon, a substance present in chloroplast that acts as H-acceptor is _________.
EASY

In photosynthetic carbon-fixation, which one of the following reacts with CO2

MEDIUM
Consider the following statements regarding photosynthesis and respiration in plants and select the correct option.
I. RuBisCO has high affinity to oxygen in low CO2 concentration.
II. The Calvin pathway occurs in the chloroplast of bundle sheath cells of C4 plants.
III. Yeast position themselves when the concentration of alcohol reaches 7%.
IV. Oxygen is a final hydrogen acceptor during aerobic respiration.
EASY
The two enzymatic activities associated with RuBisCO are:
EASY
The first stable product of CO2 fixation in Sorghum is:
MEDIUM

Match the plants in Column I with their features listed in the Column II, III and IV.

Column I: Types of plants Column II: Types of Photosynthesis Column III: Site of Calvin cycle Column IV: Time of stomata
opening
Rice CAM Mesophyll Day
Pineapple C4 Bundle Sheath Night
Sugarcane C3    

Choose the correct combination.

EASY
Identify the reaction for which the C4 plants require some extra ATP molecules in comparson to C3 plants.
MEDIUM

Given below are two statements:
Statement I: The primary CO2 acceptor in C4 plants is phosphoenolpyruvate which is found in the mesophyll cells.
Statement II: Mesophyll cells of C4 plants lack RuBisCo enzyme.
In light of the above statements, choose the correct answer from the options given below:

EASY
What is the role of large bundle shealth cells found around the vascular bundles in C4 plants?
MEDIUM
Number of given forms of phosphate ions released during the synthesis of 10 glucose molecules in calvin cycle in series
a) Inorganic phosphate
b)H2PO4-
c) ADP
EASY
Phosphoenolpyruvate (PEP) is the primary CO2 acceptor in:
HARD
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?