Q. No.Reserve materials in prokaryotic cells are stored in the cytoplasm in the form of:
1. Non-membrane bound lysosomes
2. Gas vacuoles
3. Chromatophores
4. Inclusion bodies
1. Non-membrane bound lysosomes
2. Gas vacuoles
3. Chromatophores
4. Inclusion bodies
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Which of the following is absent in almost all plant cells?
| 1. | Plastid | 2. | Cell wall |
| 3. | A large central vacuole | 4. | Centriole |
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The lipid content of the cell membrane mainly consists of:
| 1. | Phosphoglycerides | 2. | Cholesterol |
| 3. | Unsaturated fatty acids | 4. | Lipopolysaccharides |
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The approximate percent composition of proteins and lipids in the cell membrane of an erythrocyte is respectively:
| 1. | 52% and 40% | 2. | 40% and 52% |
| 3. | 60% and 40% | 4. | 40% and 60% |
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The measure of fluidity of a cell membrane is:
| 1. | the ability of proteins to flip-flop between the two layers of phospholipids |
| 2. | the ability of proteins to move laterally within the membrane |
| 3. | the ability of lipids to flip-flop between the two layers of phospholipids |
| 4. | the ability of lipids to move laterally within the membrane |
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Algal cell walls are composed of all the following except:
1. Cellulose
2. Galactans and mannans
3. Minerals like calcium carbonate
4. Chitin
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The middle lamella of the cell wall is composed of:
| 1. | Calcium carbonate | 2. | Calcium phosphate |
| 3. | Calcium pectate | 4. | Calcium oxalate |
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A narrow thread of cytoplasm that passes through the cell walls of adjacent plant cells and allows communication between them is called as:
| 1. | Desmosome | 2. | Plasmodesma |
| 3. | Adhering junction | 4. | Tight junction |
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The endo-membrane system of a eukaryotic cell includes:
| 1. | Lysosomes | 2. | Peroxisomes |
| 3. | Mitochondria | 4. | Chloroplasts |
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Which of the following statements would not be applicable to the rough endoplasmic reticulum in a eukaryotic cell?
| 1. | Frequently observed in cells actively involved in protein synthesis and secretion |
| 2. | Bear ribosomes on their surface |
| 3. | Continuous with the outer membrane of the nucleus |
| 4. | Sites of synthesis of steroidal hormones |
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