- 1(current)
Q. No.The inner membrane of a mitochondrion is convoluted into folds called:
1. Grana
2. Stroma
3. Cristae
4. Thylakoids
1. Grana
2. Stroma
3. Cristae
4. Thylakoids
Subtopic: Mitochondria |
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Mitochondria are double-membrane bound organelles, with the inner membrane folded into cristae.
1. True
2. False
1. True
2. False
Subtopic: Mitochondria |
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The mitochondrial matrix contains circular DNA, ribosomes, and enzymes for the Krebs cycle.
1. True
2. False
1. True
2. False
Subtopic: Mitochondria |
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What is the primary function of cristae in mitochondria?
1. To increase surface area for attachment of enzymes involved in cellular respiration
2. To compartmentalise mitochondrial DNA and regulate its replication
3. To store high-energy phosphate compounds synthesised during respiration
4. To facilitate transport of metabolites between matrix and intermembrane space
1. To increase surface area for attachment of enzymes involved in cellular respiration
2. To compartmentalise mitochondrial DNA and regulate its replication
3. To store high-energy phosphate compounds synthesised during respiration
4. To facilitate transport of metabolites between matrix and intermembrane space
Subtopic: Mitochondria |
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Level 1: 80%+
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Mitochondria are called powerhouse of cell because they:
| 1. | Synthesise ATP through respiration |
| 2. | Store ATP in cristae |
| 3. | Break down glucose molecules |
| 4. | Convert light into energy |
Subtopic: Mitochondria |
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Consider the following statements regarding mitochondria:
Which of the statements given above are correct?
1. I and II only
2. II and III only
3. I and III only
4. I, II and III
| I: | Inner membrane is folded into cristae. |
| II: | It contains its own circular DNA. |
| III: | Ribosomes are of 70S type. |
1. I and II only
2. II and III only
3. I and III only
4. I, II and III
Subtopic: Mitochondria |
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Which one of the following combinations of features is correctly shared by both
mitochondria and chloroplasts?
1. Presence of single membrane, circular DNA and cristae
2. Presence of double membranes, genetic material and ribosome
3. Presence of thylakoids, matrix and hydrolytic enzymes
4. Presence of cisternae, oxysomes and chlorophyll pigments
mitochondria and chloroplasts?
1. Presence of single membrane, circular DNA and cristae
2. Presence of double membranes, genetic material and ribosome
3. Presence of thylakoids, matrix and hydrolytic enzymes
4. Presence of cisternae, oxysomes and chlorophyll pigments
Subtopic: Plastids | Mitochondria |
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Q. No.
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