Q. No.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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The types of plastids that store oils and fats are:
| 1. Leucoplasts | 2. Amyloplasts |
| 3. Elaioplasts | 4. Aleuroplasts |
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Identify the incorrect statement regarding chloroplasts:
| 1. | They are double membrane bound organelles |
| 2. | Inner chloroplast membrane is relatively more permeable |
| 3. | Chlorophyll pigments are present in the thylakoids |
| 4. | Stroma contains enzymes required for synthesis of carbohydrates and proteins |
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What is true regarding the structure of ribosomes?
| 1. | They are made of rRNA and proteins and are enclosed by a single membrane |
| 2. | They are made of rRNA and carbohydrates and are enclosed by a single membrane |
| 3. | They are made of rRNA and carbohydrates and are not enclosed by any membrane |
| 4. | They are made of rRNA and proteins and are not enclosed by any membrane |
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The arrangement of axonemal microtubules in cilia and flagella is regarded as:
| 1. | 9 + 0 | 2. | 9 + 1 |
| 3. | 9 + 2 | 4. | 9 + 9 |
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