- 1(current)
Q. No.
Which one of the following cellular parts is correctly described ?
| 1. | Thylakoids - flattened membranous sacs forming the grana of chloroplasts |
| 2. | Centrioles - sites for active RNA synthesis |
| 3. | Ribosomes - those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s) |
| 4. | Lysosomes - optimally active at a pH of about 8.5 |
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Match the following and select the correct answer :
| (a) | Centriole | (i) | Infoldings in mitochondria |
| (b) | Chlorophyll | (ii) | Thylakoids |
| (c) | Cristae | (iii) | Nucleic acids |
| (d) | Ribozymes | (iv) | Basal body cilia or flagella |
| A | B | C | D | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (iv) | (iii) | (i) | (ii) |
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Extranuclear chromosomes occur in:
| 1. | Peroxisome and ribosome | 2. | Chloroplast and mitochondria |
| 3. | Mitochondria and ribosome | 4. | Chloroplast and lysosome |
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In a eukaryotic cell, the two organelles that can transform energy are:
| 1. | bound by a single membrane |
| 2. | parts of the endomembrane system |
| 3. | present only in the plant cells |
| 4. | semi-autonomous |
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- 1(current)
Q. No.
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