Advertisements
Advertisements
Question
PEP is primary CO2 acceptor in ______.
Options
C4 plants
C3 plants
C2 plants
Both C3 and C4 plants
Advertisements
Solution
PEP is primary CO2 acceptor in C4 plants.
Explanation:
PEP is absent in C3 plants and PEP carboxylase is also absent.
APPEARS IN
RELATED QUESTIONS
By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain.
RuBisCo is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCo carries out more carboxylation in C4 plants?
Give comparison between the following:
Anatomy of leaf in C3 and C4 plants
In the maize plant, \[\ce{CO2}\] fixation occurs in both mesophyll and bundle sheath cells. The enzymes involved in these cells for the process respectively are, ______.
In C4-pathway initial carbon dioxide fixation occurs in chloroplasts of ______.
The first stable product of CO2 fixation in sorghum is ______.
The enzyme that is not found in a C3 plant is ______.
Some of these terms/chemicals are associated with the C4 cycle. Explain.
Hatch slack pathway
Some of these terms/chemicals are associated with the C4 cycle. Explain.
Calvin cycle
Some of these terms/chemicals are associated with the C4 cycle. Explain.
PEP carboxylase
Some of these terms/chemicals are associated with the C4 cycle. Explain.
Bundle sheath cells
In what kind of plants do you come across ‘Kranz’ anatomy? To which conditions are those plants better adapted? How are these plants better adapted than the plants which lack this anatomy?
Observe the diagram and answer the following.

- Which group of plants exibits these two types of cells?
- What is the first product of C4 cycle?
- Which enzyme is there in bundle sheath cells and mesophyll cells?
A cyclic process is occurring in C3 plant, which is light dependent, and needs O2. This process doesn’t produce energy rather it consumes energy.
- Can you name the given process?
- Is it essential for survival?
- What are the end products of this process?
- Where does it occur?
Under what conditions are C4 plants superior to C3?
Name the two important enzymes of C4 pathway, and explain their role in fixing CO2?
Which of the following statements about RuBisCO is true?
