Q. No.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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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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The number of correct statements regarding Golgi apparatus amongst the given statements will be:
| I: | The concave trans surface is the maturing face. |
| II: | The cis and trans faces are entirely different but interconnected. |
| III: | It remains in close association with the endoplasmic reticulum. |
| IV: | Site of formation of glycoproteins and glycolipids. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
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Acid hydrolases are found in a single membrane bound organelle called:
| 1. Glyoxysome | 2. Lysosome |
| 3. Peroxisome | 4. Ribosome |
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A single membrane, tonoplast, binds the:
| 1. Inclusion bodies | 2. Polysomes |
| 3. Vacuoles | 4. Lysosomes |
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Which of the following organelles in a eukaryotic cell can only be seen after staining with vital dye?
| 1. Mitochondria | 2. Chloroplasts |
| 3. Nucleus | 4. Endoplasmic reticulum |
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All the following are located in the mitochondrial matrix except:
1. Single circular DNA molecule
2. Proteins of electron transport chain
3. 70 S ribosomes
4. Enzymes of Kreb’s cycle
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