Q. No.A cell organelle containing hydrolytic enzyme is
1. lysosome
2. microsome
3. ribosome
4. mesosome
Cellular organelles with membranes are
| 1. | nuclei, ribosomes and mitochondria |
| 2. | chromosomes, ribosomes and endoplasmic reticulum |
| 3. | endoplasmic reticulum, ribosomes and nuclie |
| 4. | lysosomes, Golgi apparatus and mitochondria. |
A complex of ribosomes attached to a single strand of RNA is known as
1. polymer
2. polypeptide
3. okazaki fragment
4. polysome
Which of the following are not membrane-bound?
1. Vacuoles
2. Ribosomes
3. Lysosomes
4. Mesosomes
Microtubules are the constituents of
| 1. | spindle fibres, centrioles and cilia |
| 2. | centrioles, spindle fibres and chromatin |
| 3. | centrosome, nucleosome and centrioles |
| 4. | cilia, flagella and peroxisomes |
Mitochondria and chloroplast are
| I: | semi-autonomous organelles. |
| II: | formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery. |
| 1. | Il is true but I is false |
| 2. | I is true but ll is false |
| 3. | Both I and I are false |
| 4. | Both I and II are correct |
Which of the following is not a feature of the plasmids?
1. Circular structure
2. Transferable
3. Single-stranded
4. Independent replication
Balbiani rings are sites of
| 1. | lipid synthesis |
| 2. | nucleotide synthesis |
| 3. | polysaccharide synthesis |
| 4. | RNA and protein synthesis |
A protoplast is a cell
| 1. | without plasma membrane |
| 2. | without nucleus |
| 3. | undergoing division |
| 4. | without cell wall |
Water soluble pigments found in plant cell vacuoles are
1. chlorophylls
2. carotenoids
3. anthocyanins
4. xanthophylls
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