Q. No.What is the functional significance of the cristae in mitochondria?
| 1. | They allow the exchange of genetic material between mitochondria. |
| 2. | They increase the surface area for enzymatic activity related to ATP production. |
| 3. | They store nutrients like carbohydrates and lipids. |
| 4. | They provide structural support to the outer membrane. |
Subtopic: Mitochondria |
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Level 1: 80%+
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Which of the following organelles contain small amounts of DNA and convert energy?
| 1. | microfi laments and microtubules |
| 2. | lysosomes and peroxisomes |
| 3. | ER and ribosomes |
| 4. | mitochondria and chloroplasts |
Subtopic: Plastids | Mitochondria |
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Match List I with List II
Choose the correct answer from the options given below:
1. A - (III); B - (II); C - (IV); D - (I)
2. A - (I); B - (II); C - (III); D - (IV)
3. A - (III); B - (IV); C - (I); D - (II)
4. A - (III); B - (II); C - (I); D - (IV)
| List I | List II |
| A. Stroma | I. Vacuole membrane |
| B. Plasmodesmata | II. Infoldings in mitochondria |
| C. Tonoplast | III. Fluid inside Chloroplast |
| D. Cristae | IV. Cytoplasmic connections |
1. A - (III); B - (II); C - (IV); D - (I)
2. A - (I); B - (II); C - (III); D - (IV)
3. A - (III); B - (IV); C - (I); D - (II)
4. A - (III); B - (II); C - (I); D - (IV)
Subtopic: Mitochondria | Vacuole |
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Mitochondria are semi-autonomous organelles mainly because they:
| 1. | Are completely independent of nuclear genes |
| 2. | Lack dependence on cytoplasmic enzymes |
| 3. | Can survive outside the cell |
| 4. | Possess their own DNA and ribosomes |
Subtopic: Mitochondria |
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Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
1. Ribosome
2. Chloroplast
3. Mitochondrion
4. Lysosome
Subtopic: Mitochondria |
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Level 1: 80%+
NEET - 2017
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Match List-I with List-II.
Choose the correct answer from the options given below:
| List-I | List-II | ||
| A. | F1 Particles | I. | Chromosomes |
| B. | Histones | II. | Cilia |
| C. | Axoneme | III. | Golgi apparatus |
| D. | Cisternae | IV. | Mitochondria |
| 1. | A-II, B-I, C-IV, D-III | 2. | A-IV, B-I, C-II, D-III |
| 3. | A-IV, B-I, C-III, D-II | 4. | A-IV, B-III, C-I, D-II |
Subtopic: Mitochondria | Golgi Apparatus | Nucleus: Chromosomes | Cilia & Flagella |
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Level 1: 80%+
NEET - 2024
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The number of mitochondria per cell varies depending on the cell’s metabolic activity. What could be inferred about a cell with an unusually high number of mitochondria?
| 1. | It is likely engaged in high energy-demanding processes. |
| 2. | It relies primarily on glycolysis for energy production. |
| 3. | It has a decreased rate of oxidative phosphorylation. |
| 4. | It is undergoing rapid mitotic division. |
Subtopic: Mitochondria |
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Ribosomes occur freely in the cytoplasm or bound to the ER. A researcher isolates ribosomes of 70S type from a eukaryotic cell. These most likely originate from
| 1. | cytoplasm |
| 2. | mitochondria or chloroplasts |
| 3. | lysosomes |
| 4. | nucleolus |
Subtopic: Plastids | Mitochondria |
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Which of the given is not found in matrix of mitochondria?
1. RNA
2. Proteins
3. 80S ribosomes
4. DNA
Subtopic: Mitochondria |
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Animal cells contain organelles that take part in vital processes. Which of the following is true?
1. (i) only
2. (i) and (iii)
3. (iii) only
4. (i) and (ii)
| (i) | The majority of energy production by animal cells occurs in the mitochondria. |
| (ii) | The cell wall protects the animal cell membrane from outside pressure differences. |
| (iii) | The endoplasmic reticulum plays a role in protein synthesis. |
2. (i) and (iii)
3. (iii) only
4. (i) and (ii)
Subtopic: Mitochondria | Endomembrane System (Endoplasmic Reticulum) |
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