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Which of the following statements is incorrect?
- a)In a dicot stem, the pericycle is usually multilayered
- b)Wood is the common name used for secondary xylem
- c)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube element
- d)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchange
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements is incorrect?a)In a dicot stem, the ...
Explanation:
The correct answer is option C: Peripheral cytoplasm, a large vacuole, and a prominent nucleus; all are absent in a mature sieve tube element.
Peripheral cytoplasm:
In a mature sieve tube element, the cytoplasm is located in the central region of the cell, forming a mass called the nucleus. The peripheral cytoplasm, which is present in other plant cells, is absent in mature sieve tube elements.
Large vacuole:
The mature sieve tube elements have a large central vacuole that occupies most of the cell's volume. This vacuole is responsible for storing and transporting sugars and other organic compounds.
Prominent nucleus:
In a mature sieve tube element, the nucleus is usually degraded and no longer present. This is because the function of the sieve tube element is mainly to transport nutrients and sugars, and the absence of a nucleus allows for a more efficient flow of materials through the cell.
Sieve tube elements:
Sieve tube elements are specialized cells found in the phloem tissue of plants. They are responsible for the translocation of sugars and other organic compounds from the leaves to other parts of the plant. These cells are interconnected end to end, forming sieve tubes that allow for the movement of fluids.
Function of sieve tube elements:
The sieve tube elements are adapted for efficient transport. They have thin walls and lack many cellular components, such as peripheral cytoplasm, a large vacuole, and a prominent nucleus. These adaptations allow for an unobstructed flow of fluids and nutrients through the sieve tubes.
In summary, the incorrect statement is option C, which states that peripheral cytoplasm, a large vacuole, and a prominent nucleus are absent in a mature sieve tube element. In reality, a mature sieve tube element has a large central vacuole, lacks peripheral cytoplasm, and usually lacks a prominent nucleus.
The correct answer is option C: Peripheral cytoplasm, a large vacuole, and a prominent nucleus; all are absent in a mature sieve tube element.
Peripheral cytoplasm:
In a mature sieve tube element, the cytoplasm is located in the central region of the cell, forming a mass called the nucleus. The peripheral cytoplasm, which is present in other plant cells, is absent in mature sieve tube elements.
Large vacuole:
The mature sieve tube elements have a large central vacuole that occupies most of the cell's volume. This vacuole is responsible for storing and transporting sugars and other organic compounds.
Prominent nucleus:
In a mature sieve tube element, the nucleus is usually degraded and no longer present. This is because the function of the sieve tube element is mainly to transport nutrients and sugars, and the absence of a nucleus allows for a more efficient flow of materials through the cell.
Sieve tube elements:
Sieve tube elements are specialized cells found in the phloem tissue of plants. They are responsible for the translocation of sugars and other organic compounds from the leaves to other parts of the plant. These cells are interconnected end to end, forming sieve tubes that allow for the movement of fluids.
Function of sieve tube elements:
The sieve tube elements are adapted for efficient transport. They have thin walls and lack many cellular components, such as peripheral cytoplasm, a large vacuole, and a prominent nucleus. These adaptations allow for an unobstructed flow of fluids and nutrients through the sieve tubes.
In summary, the incorrect statement is option C, which states that peripheral cytoplasm, a large vacuole, and a prominent nucleus are absent in a mature sieve tube element. In reality, a mature sieve tube element has a large central vacuole, lacks peripheral cytoplasm, and usually lacks a prominent nucleus.
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Which of the following statements is incorrect?a)In a dicot stem, the ...
Each mature sieve tube element has thin or thick cellulose wall surrounding a highly albuminous and viscous content. Cytoplasm occurs in the form of thin lining enclosing a big central vacuole. The nucleus, plastids, mitochondria, endoplasmic reticulum and dictyosomes are absent. Vacuole is filled with albuminous substances.
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Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer?
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Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer?.
Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following statements is incorrect?a)In a dicot stem, the pericycle is usually multilayeredb)Wood is the common name used for secondary xylemc)Peripheral cytoplasm, a large vacuole and a prominent nucleus; all are absent in a mature sieve tube elementd)Lenticels are the aerating pores present in bark of plants and are associated with gaseous exchangeCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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