Q. No.Ribosomes are non-membrane bound organelles found in:
| 1. | All prokaryotic cells only |
| 2. | All eukaryotic cells only |
| 3. | All somatic cells in eukaryotic organisms only |
| 4. | All cells |
Both cilium and flagellum emerge from centriole-like structure called the:
| 1. | Centrosome | 2. | Centromere |
| 3. | Blepharoplast | 4. | Basal body |
A non-membrane bound organelle found in all cells is:
| 1. | Centriole | 2. | Lysosome |
| 3. | Vacuole | 4. | Ribosome |
Polysome is formed by
1. A ribosome with several subunits
2. Ribosomes attached to each other in a linear arrangement
3. Several ribosomes attached to a single mRNA
4. Many ribosomes attached to a strand of endoplasmic reticulum
Which of the following is not a feature of the plasmids?
| 1. | Single – stranded | 2. | Independent replication |
| 3. | Circular structure | 4. | Transferable |
Which of the following statement about inclusion bodies IS incorrect ?
| 1. | These are involved in ingestion of food particles. |
| 2. | They lie free in the cytoplasm. |
| 3. | These represent reserve material in cytoplasm. |
| 4. | They are not bound by any membrane. |
Prokaryotic and eukaryotic flagella differ in
1. Type of movement and placement
2. Location and mode of functioning
3. Microtubular structure and function
4. Microtubular organisation and type of movement
Which of the following statement about cilia is not correct?
| 1. | Organised beating of cilia is controlled by fluxes of Ca2+ across the membrane. |
| 2. | Cilia are hair like cellular appendages. |
| 3. | Cilia contain an outer ring of nine doublet microtubules surrounding two singlet microtubules. |
| 4. | Microtubules of cilia are composed of tubulin. |
Which structures perform the function of mitochondria in bacteria?
| 1. | Nucleoid | 2. | Ribosomes |
| 3. | Cell wall | 4. | Mesosomes |
A non-membrane bound organelle found in animal cells that helps in cell division would be:
| 1. | Centromere | 2. | Centrosome |
| 3. | Basal body | 4. | Fimbriae |
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