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प्रश्न
Give comparison between the following:
Anatomy of leaf in C3 and C4 plants
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उत्तर
| C3 leaves | C4 leaves | |
| 1. | The leaves do not possess kranz anatomy. | The leaves have kranz anatomy. |
| 2. | Chloroplasts do not have peripheral reticulum. | Chloroplasts have peripheral reticulum. |
| 3. | Chloroplast are of one type (monomorphic) | There are two types of chloroplasts (dimorphic). |
| 4. | Bundle sheath cell usually do not contain chloroplast. | Bundle sheath cells posses promient chloroplast. |
| 5. | In higher plants operating C3 cycle, all the chloroplasts are granal. | There are two types of chloroplasts, granular in mesophy II cells and agranal in bundle sheath cells. |
| 6. | Mesophy II cell perform complete photosynthesis. | Mesophy II cells perform only initial fixation. |
| 7. | Perform photosynthesis only when stomata are open. | Perform photosynthesis even when stomata is closed (from CO2 produced in respiration). |
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संबंधित प्रश्न
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?
In case of C4 pathway, the first step is
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 ______.
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?
Name the two important enzymes of C4 pathway, and explain their role in fixing CO2?
Which of the following statements about RuBisCO is true?
