Class 11 Exam > Class 11 Questions > Which is an incorrect statement -a)Microtubul...
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Which is an incorrect statement -
- a)Microtubules take part in cell division
- b)Detoxification site in liver cells is in SER
- c)The nucleolus contains DNA homologous
to ribosomal RNA - d)Centrioles are located on the chromosomes
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which is an incorrect statement -a)Microtubules take part in cell divi...
Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell's skeletal system. They help determine the locations of the nucleus and other organelles within the cell.
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Which is an incorrect statement -a)Microtubules take part in cell divi...
Answer is D because centriole is d part of centrosome,not chromosome....2 centrioles lie perpencular to each other to form centrosome which is present in cytoplasm....however chromosomes contain 2 chomatids joined together by centromere and is present in nucleus
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Community Answer
Which is an incorrect statement -a)Microtubules take part in cell divi...
Incorrect statement: Centrioles are located on the chromosomes.
Explanation:
Centrioles are small, cylindrical structures that are found in animal cells. They are composed of microtubules and play a role in cell division. However, they are not located on the chromosomes.
Microtubules and cell division:
Microtubules are long, hollow cylindrical structures made up of tubulin proteins. They play a crucial role in various cellular processes, including cell division. During cell division, microtubules form the mitotic spindle, which helps in the separation of chromosomes into two daughter cells.
Detoxification site in liver cells:
The correct statement is that the detoxification site in liver cells is in the smooth endoplasmic reticulum (SER). The SER is a network of membrane-bound tubules and vesicles involved in lipid and steroid synthesis, as well as drug detoxification. It contains enzymes that help in the detoxification of various harmful substances.
Nucleolus and ribosomal RNA:
The nucleolus is a distinct structure located within the nucleus of eukaryotic cells. It is involved in the synthesis and assembly of ribosomes. The nucleolus contains DNA, but it is not homologous to ribosomal RNA (rRNA). Rather, it contains the genes that code for rRNA, which is then transcribed and processed to form the components of ribosomes.
Centrioles and chromosomes:
Centrioles are not located on the chromosomes. They are found outside the nucleus, usually in close proximity to the nucleus, within a region called the centrosome. Centrioles play a role in organizing the microtubule cytoskeleton and are involved in processes such as cell division and cell motility.
In conclusion, the incorrect statement in the given options is option D, which states that centrioles are located on the chromosomes. Centrioles are not located on the chromosomes but are found in the centrosome, outside the nucleus.
Explanation:
Centrioles are small, cylindrical structures that are found in animal cells. They are composed of microtubules and play a role in cell division. However, they are not located on the chromosomes.
Microtubules and cell division:
Microtubules are long, hollow cylindrical structures made up of tubulin proteins. They play a crucial role in various cellular processes, including cell division. During cell division, microtubules form the mitotic spindle, which helps in the separation of chromosomes into two daughter cells.
Detoxification site in liver cells:
The correct statement is that the detoxification site in liver cells is in the smooth endoplasmic reticulum (SER). The SER is a network of membrane-bound tubules and vesicles involved in lipid and steroid synthesis, as well as drug detoxification. It contains enzymes that help in the detoxification of various harmful substances.
Nucleolus and ribosomal RNA:
The nucleolus is a distinct structure located within the nucleus of eukaryotic cells. It is involved in the synthesis and assembly of ribosomes. The nucleolus contains DNA, but it is not homologous to ribosomal RNA (rRNA). Rather, it contains the genes that code for rRNA, which is then transcribed and processed to form the components of ribosomes.
Centrioles and chromosomes:
Centrioles are not located on the chromosomes. They are found outside the nucleus, usually in close proximity to the nucleus, within a region called the centrosome. Centrioles play a role in organizing the microtubule cytoskeleton and are involved in processes such as cell division and cell motility.
In conclusion, the incorrect statement in the given options is option D, which states that centrioles are located on the chromosomes. Centrioles are not located on the chromosomes but are found in the centrosome, outside the nucleus.
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Which is an incorrect statement -a)Microtubules take part in cell divisionb)Detoxification site in liver cells is in SERc)The nucleolus contains DNA homologousto ribosomal RNAd)Centrioles are located on the chromosomesCorrect answer is option 'D'. Can you explain this answer?
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Which is an incorrect statement -a)Microtubules take part in cell divisionb)Detoxification site in liver cells is in SERc)The nucleolus contains DNA homologousto ribosomal RNAd)Centrioles are located on the chromosomesCorrect answer is option 'D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which is an incorrect statement -a)Microtubules take part in cell divisionb)Detoxification site in liver cells is in SERc)The nucleolus contains DNA homologousto ribosomal RNAd)Centrioles are located on the chromosomesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is an incorrect statement -a)Microtubules take part in cell divisionb)Detoxification site in liver cells is in SERc)The nucleolus contains DNA homologousto ribosomal RNAd)Centrioles are located on the chromosomesCorrect answer is option 'D'. Can you explain this answer?.
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