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Q. No.What are chromatophores in prokaryotic cells?
1.
Lipopolysaccharide layer of gram negative bacteria
2.
Colored pigments in fluorescent bacteria
3.
Carbon concentrating compartments in photosynthetic bacteria
4.
Membrane-bound vesicles containing photosynthetic pigments
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
68%
Level 2: 60%+
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Which of the following functions is associated with the Rough Endoplasmic Reticulum (RER)?
| 1. | Synthesis of steroid hormones |
| 2. | Detoxification of drugs and poisons |
| 3. | Synthesis of proteins destined for secretion |
| 4. | Storage of calcium ions |
Subtopic: Endomembrane System (Endoplasmic Reticulum) |
91%
Level 1: 80%+
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What is the primary function of the nucleolus found within the nucleus?
| 1. | It is the site of ribosome assembly. |
| 2. | It serves as the storage area for DNA. |
| 3. | It is responsible for the synthesis of lipids. |
| 4. | It plays a role in cell division. |
Subtopic: Nucleus |
75%
Level 2: 60%+
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Which of the following is not a part of the cell theory?
1. Only I and II
2. Only III
3. Only I
4. I, II and III
| I. | All living organisms are composed of cells. |
| II. | The cell is the basic unit of life. |
| III. | All cells come from pre-existing cells through sexual reproduction. |
1. Only I and II
2. Only III
3. Only I
4. I, II and III
Subtopic: Cell Theory |
71%
Level 2: 60%+
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The quasi-fluid nature of the cell membrane is primarily because of
1. Phospholipids
2. Cholesterol
3. Carbohydrates
4. Proteins.
1. Phospholipids
2. Cholesterol
3. Carbohydrates
4. Proteins.
Subtopic: Evidence for Fluidic Nature of Membrane |
88%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | The approximate percent composition of proteins and lipids in the cell membrane of a human erythrocyte is respectively 40% and 52%. |
| Statement II: | The measure of fluidity of a cell membrane is the ability of proteins to flip-flop between the two layers of phospholipid. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Evidence for Fluidic Nature of Membrane |
Level 3: 35%-60%
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Match the following organelles with their functions:
1. 1-D, 2-B, 3-A, 4-C
2. 1-C, 2-D, 3-B, 4-A
3. 1-B, 2-A, 3-D, 4-C
4. 1-B, 2-C, 3-A, 4-D
| Column I | Column II | ||
| 1. | Chloroplast | A. | Protein synthesis |
| 2. | Peroxisome | B. | Photosynthesis |
| 3. | Nucleolus | C. | Detoxification |
| 4. | Centrosome | D. | Cell division |
1. 1-D, 2-B, 3-A, 4-C
2. 1-C, 2-D, 3-B, 4-A
3. 1-B, 2-A, 3-D, 4-C
4. 1-B, 2-C, 3-A, 4-D
Subtopic: Eukaryotic Cell Orgenelle |
92%
Level 1: 80%+
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The primary function of the cell wall in plant cells is to:
| 1. | control the entry and exit of substances |
| 2. | provide structural support and protection |
| 3. | conduct photosynthesis |
| 4. | store genetic information |
Subtopic: Cell Wall |
95%
Level 1: 80%+
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What role does the cell membrane play in maintaining homeostasis within animal cells?
| 1. | It synthesizes proteins that regulate cellular functions. |
| 2. | It selectively allows substances to enter and exit the cell, maintaining the internal environment. |
| 3. | It provides structural support to maintain the shape and integrity of the cell. |
| 4. | It stores genetic material and coordinates cell division. |
Subtopic: Cell Membrane |
89%
Level 1: 80%+
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What will not be true for a prokaryotic bacterial cell?
| 1. | Mesosomes help in DNA replication and distribution to daughter cells. |
| 2. | Gram staining is based on the difference in the composition of cell wall of different bacteria. |
| 3. | The axonemal microtubular arrangement in prokaryotes is characterized as 9 + 2. |
| 4. | Plasmids are extrachromosomal circular double stranded DNA molecules. |
Subtopic: Cytoskeleton |
66%
Level 2: 60%+
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