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प्रश्न
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?
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उत्तर
Kranz’s anatomy is found in C4 plants; such as maize, sugarcane, etc. These plants can resist high temperatures and high intensities of light. These plants are also modified to live in an insufficient supply of nitrogen and carbon dioxide. These plants do not carry photorespiration; unlike C3 plants. This aids in making optimum amounts of glucose. Hence, C4 plants produce more biomass compared to C3 plants.
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संबंधित प्रश्न
By looking at a plant externally can you tell whether a plant is C3 or C4? Why and how?
By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain.
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 first stable product of CO2 fixation in sorghum is ______
The enzyme that is not found in a C3 plant is ______.
When CO2 is added to PEP, the first stable product synthesised is ______.
Can girdling experiments be done in monocots? If yes, How? If no, why not?
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
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?
Name the two important enzymes of C4 pathway, and explain their role in fixing CO2?
