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In Kranz anatomy, the bundle sheath cells have
[2011M]
- a)thin walls, many intercellular spaces and no chloroplasts
- b)thick walls, no intercellular spaces and large number of chloroplasts
- c)thin walls, no intercellular spaces and several chloroplasts
- d)thick walls, many intercellular spaces and few chloroplasts
Correct answer is option 'B'. Can you explain this answer?
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In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, man...
In Kranz anatomy, the bundle sheath cells have thick wall, no intracellular spaces and large number of chloroplasts.
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In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, man...
Bundle Sheath Cells in Kranz Anatomy
The bundle sheath cells are a specialized group of cells that surround the vascular bundles in the leaves of C4 plants. These cells play a crucial role in the C4 photosynthetic pathway, which enables these plants to efficiently fix carbon dioxide and minimize photorespiration. In Kranz anatomy, the bundle sheath cells have specific structural and functional characteristics.
Characteristics of Bundle Sheath Cells in Kranz Anatomy
The correct answer to the given question is option 'b' - thick walls, no intercellular spaces, and a large number of chloroplasts. Let's understand why this is the correct answer by examining each characteristic in detail:
1. Thick walls: Bundle sheath cells have thick walls composed of lignin and cellulose. These thick walls provide mechanical support to the leaf and prevent the diffusion of gases into and out of the cells. This feature is essential for the efficient functioning of the C4 photosynthetic pathway.
2. No intercellular spaces: Bundle sheath cells are tightly packed together with minimal intercellular spaces. This arrangement limits the movement of gases, particularly carbon dioxide, and ensures that the released carbon dioxide from the mesophyll cells is efficiently channeled into the bundle sheath cells for fixation.
3. Large number of chloroplasts: Bundle sheath cells contain a high concentration of chloroplasts. Chloroplasts are the site of photosynthesis, where carbon dioxide is fixed into organic compounds. The large number of chloroplasts in bundle sheath cells allows for an increased capacity for photosynthesis, making C4 plants more efficient in carbon fixation and reducing photorespiration.
Significance of Bundle Sheath Cells in C4 Photosynthesis
The bundle sheath cells play a crucial role in the C4 photosynthetic pathway, which is an adaptation in plants that live in hot and dry environments. In this pathway, carbon dioxide is initially fixed into a four-carbon compound in the mesophyll cells. This compound is then transported to the bundle sheath cells, where it is decarboxylated to release carbon dioxide. The released carbon dioxide is then fixed again in the Calvin cycle, leading to increased efficiency in carbon fixation and reduced water loss through stomata.
The specialized characteristics of bundle sheath cells, including their thick walls, lack of intercellular spaces, and abundance of chloroplasts, contribute to the efficient functioning of the C4 photosynthetic pathway. These adaptations ensure that carbon dioxide is efficiently concentrated and fixed within the bundle sheath cells, allowing C4 plants to thrive in environments with high temperatures and limited water availability.
In conclusion, bundle sheath cells in Kranz anatomy have thick walls, no intercellular spaces, and a large number of chloroplasts. These structural characteristics are essential for the efficient functioning of the C4 photosynthetic pathway in C4 plants.
The bundle sheath cells are a specialized group of cells that surround the vascular bundles in the leaves of C4 plants. These cells play a crucial role in the C4 photosynthetic pathway, which enables these plants to efficiently fix carbon dioxide and minimize photorespiration. In Kranz anatomy, the bundle sheath cells have specific structural and functional characteristics.
Characteristics of Bundle Sheath Cells in Kranz Anatomy
The correct answer to the given question is option 'b' - thick walls, no intercellular spaces, and a large number of chloroplasts. Let's understand why this is the correct answer by examining each characteristic in detail:
1. Thick walls: Bundle sheath cells have thick walls composed of lignin and cellulose. These thick walls provide mechanical support to the leaf and prevent the diffusion of gases into and out of the cells. This feature is essential for the efficient functioning of the C4 photosynthetic pathway.
2. No intercellular spaces: Bundle sheath cells are tightly packed together with minimal intercellular spaces. This arrangement limits the movement of gases, particularly carbon dioxide, and ensures that the released carbon dioxide from the mesophyll cells is efficiently channeled into the bundle sheath cells for fixation.
3. Large number of chloroplasts: Bundle sheath cells contain a high concentration of chloroplasts. Chloroplasts are the site of photosynthesis, where carbon dioxide is fixed into organic compounds. The large number of chloroplasts in bundle sheath cells allows for an increased capacity for photosynthesis, making C4 plants more efficient in carbon fixation and reducing photorespiration.
Significance of Bundle Sheath Cells in C4 Photosynthesis
The bundle sheath cells play a crucial role in the C4 photosynthetic pathway, which is an adaptation in plants that live in hot and dry environments. In this pathway, carbon dioxide is initially fixed into a four-carbon compound in the mesophyll cells. This compound is then transported to the bundle sheath cells, where it is decarboxylated to release carbon dioxide. The released carbon dioxide is then fixed again in the Calvin cycle, leading to increased efficiency in carbon fixation and reduced water loss through stomata.
The specialized characteristics of bundle sheath cells, including their thick walls, lack of intercellular spaces, and abundance of chloroplasts, contribute to the efficient functioning of the C4 photosynthetic pathway. These adaptations ensure that carbon dioxide is efficiently concentrated and fixed within the bundle sheath cells, allowing C4 plants to thrive in environments with high temperatures and limited water availability.
In conclusion, bundle sheath cells in Kranz anatomy have thick walls, no intercellular spaces, and a large number of chloroplasts. These structural characteristics are essential for the efficient functioning of the C4 photosynthetic pathway in C4 plants.
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In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, man...
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In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer?
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In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer?.
In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Kranz anatomy, the bundle sheath cells have[2011M]a)thin walls, many intercellular spaces and no chloroplastsb)thick walls, no intercellular spaces and large number of chloroplastsc)thin walls, no intercellular spaces and several chloroplastsd)thick walls, many intercellular spaces and few chloroplastsCorrect answer is option 'B'. Can you explain this answer?.
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