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  • 1(current)
Q. No.
Match each item in Column-I with the one in Column-II regarding C4 plants and select the correct match from the codes given:
Column-I Column-II
A. Primary acceptor of carbon dioxide P. RuBP
B. Cells in which Calvin cycle takes place Q. PEP
C. Primary carbon dioxide fixation product R. Bundle sheath
D. Example S. Mesophyll
T. PGA
U. OAA
V. Sorghum
W. Wheat
Codes:
A B C D
1. Q S U V
2. P S T W
3. Q R U V
4. P R T W
Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 73%
Level 2: 60%+
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Consider the two statements:
I: Current availability of carbon dioxide levels is limiting to the C4 plants.
II: C3 plants have a much lower temperature optimum than C4 plants.
 
1. Only I is correct 2. Only II is correct
3. Both I and II are correct 4. Both I and II are incorrect
Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples | Factors Affecting Photosynthesis |
 64%
Level 2: 60%+
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Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because

1. The primary fixation of CO2 is mediated via PEP carboxylase.
2. Effective pumping of CO2 into bundle sheath cells.
3. Four carbon acids are the primary initial CO2 fixation products.
4. RuBisCO in C4 plants has higher affinity for CO2.


 

Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples | C4 and C3 plants |
Level 3: 35%-60%

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Consider the two statements:

I. The C4 photosynthesis pathway uses more energy than the C3 photosynthesis pathway.
II. C4 plants are able to more efficiently fix carbon in drought, high temperatures, and in limitations of nitrogen or CO2.
 
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. Only I is correct
4. Both I and II are incorrect
Subtopic:  Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
Level 3: 35%-60%

To unlock all the explanations of 37 chapters you need to be enrolled in MasterClass Course.

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To unlock all the explanations of 37 chapters you need to be enrolled in MasterClass Course.

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