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Mitochondria and chloroplast are [2016]
(a) semi-autonomous organelles
(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery
(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery
Which one of the following options is correct ?
- a)Both (a) and (b) are correct
- b)(b) is true but (a) is false
- c)(a) is true but (b) is false
- d)Both (a) and (b) are false
Correct answer is option 'C'. Can you explain this answer?
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Mitochondria and chloroplast are [2016](a) semi-autonomous organelles...
(c) Mitochondria & chloroplast are semiautonomous cell organelle which are formed by division of pre-existing organelle & contain DNA but they also contain proteinsynthesizing machinery, thus (a) is true & (b) is false.
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Mitochondria and chloroplast are [2016](a) semi-autonomous organelles...
Which pre existing organelles divided to form mitochondria and chloroplast??
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Mitochondria and chloroplast are [2016](a) semi-autonomous organelles...
**Mitochondria and Chloroplasts: Semi-autonomous organelles**
Mitochondria and chloroplasts are both semi-autonomous organelles present in eukaryotic cells. These organelles have their own DNA and are able to replicate independently of the cell's nuclear DNA. They are believed to have originated from ancient prokaryotic cells that were engulfed by ancestral eukaryotic cells through endosymbiosis.
**Semi-Autonomous Organelles:**
Mitochondria and chloroplasts are considered semi-autonomous because they have their own genetic material and can carry out some of their own functions, but they are still dependent on the host cell for certain resources and regulatory mechanisms. They are not completely independent entities like prokaryotic cells.
**Formation by Division:**
Both mitochondria and chloroplasts are formed through division of pre-existing organelles. This process, known as binary fission, is similar to the way bacteria reproduce. The organelles grow and replicate their DNA independently, and then divide into two daughter organelles. This division process allows for the inheritance of the organelles from one generation to the next.
**DNA and Protein Synthesis:**
Mitochondria and chloroplasts contain their own DNA, separate from the nuclear DNA of the host cell. This DNA encodes for some of the proteins necessary for the organelles to function. However, mitochondria and chloroplasts lack the complete set of genes required for protein synthesis. They rely on the host cell's nuclear DNA for the synthesis of many of their proteins. The nuclear DNA encodes for proteins that are imported into the organelles and are essential for their proper functioning.
**Correct Answer Explanation:**
The correct answer is option (c) - (a) is true but (b) is false. This is because mitochondria and chloroplasts are indeed semi-autonomous organelles, as they have their own DNA and are able to replicate independently. However, they do contain DNA and are capable of carrying out some protein synthesis, although they rely on the host cell for a significant portion of their protein synthesis.
Mitochondria and chloroplasts are both semi-autonomous organelles present in eukaryotic cells. These organelles have their own DNA and are able to replicate independently of the cell's nuclear DNA. They are believed to have originated from ancient prokaryotic cells that were engulfed by ancestral eukaryotic cells through endosymbiosis.
**Semi-Autonomous Organelles:**
Mitochondria and chloroplasts are considered semi-autonomous because they have their own genetic material and can carry out some of their own functions, but they are still dependent on the host cell for certain resources and regulatory mechanisms. They are not completely independent entities like prokaryotic cells.
**Formation by Division:**
Both mitochondria and chloroplasts are formed through division of pre-existing organelles. This process, known as binary fission, is similar to the way bacteria reproduce. The organelles grow and replicate their DNA independently, and then divide into two daughter organelles. This division process allows for the inheritance of the organelles from one generation to the next.
**DNA and Protein Synthesis:**
Mitochondria and chloroplasts contain their own DNA, separate from the nuclear DNA of the host cell. This DNA encodes for some of the proteins necessary for the organelles to function. However, mitochondria and chloroplasts lack the complete set of genes required for protein synthesis. They rely on the host cell's nuclear DNA for the synthesis of many of their proteins. The nuclear DNA encodes for proteins that are imported into the organelles and are essential for their proper functioning.
**Correct Answer Explanation:**
The correct answer is option (c) - (a) is true but (b) is false. This is because mitochondria and chloroplasts are indeed semi-autonomous organelles, as they have their own DNA and are able to replicate independently. However, they do contain DNA and are capable of carrying out some protein synthesis, although they rely on the host cell for a significant portion of their protein synthesis.
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Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. Can you explain this answer?
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Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. 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 Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. Can you explain this answer?.
Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. 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 Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mitochondria and chloroplast are [2016](a) semi-autonomous organelles(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machineryWhich one of the following options is correct ?a)Both (a) and (b) are correctb)(b) is true but (a) is falsec)(a) is true but (b) is falsed)Both (a) and (b) are falseCorrect answer is option 'C'. Can you explain this answer?.
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