Q. No.Different cells have different sizes. Arrange the following cells in an ascending order of their size. Choose the correct option among the followings
i.
Mycoplasma
ii.
Ostrich eggs
iii.
Human RBC
iv.
Bacteria
Options:
1.
i, iv, iii & ii
2.
i, ii, iii & iv
3.
ii, i, iii & iv
4.
iii, ii, i& iv
Identify the labels A, B and C in the following diagram
| 1. | A-Central microtubule; B-Plasma membrane; C-Peripheral doublet |
| 2. | A-Central sheath; B-Plasma membrane; C-Peripheral doublet |
| 3. | A-Central sheath; B-Plasma membrane; C-Interdoublet bridge |
| 4. | A-Central microtubule; B-Peripheral doublet; C-Interdoublet bridge |
A complex of ribosomes attached to a single strand of RNA is known as:
| 1. | Okazaki fragment | 2. | Polysome |
| 3. | Polymer | 4. | Polypeptide |
The diagram below represents the fluid mosaic model of the cell (surface) membrane.
Only two of the labelled molecules have both hydrophobic and hydrophilic areas. Which two molecules are they?
1. P and Q
2. R and S
3. Q and R
4. S and T
Membrane bound vesicular structure formed by the process of packaging in the Golgi apparatus
| 1. | Contains materials not useful for cell and is bounded by half unit membrane |
| 2. | Contains all types of hydrolytic enzymes optimally active at the acidic pH |
| 3. | Are concerned with photorespiration in plants and animals |
| 4. | Possess enzymes for Krebs cycle |
Satellite body is formed in chromosome because of
1. primary constriction
2. secondary constriction
3. Centromere
4. Both 1 and 3
Unless specifically stained by a vital stain like Janus Green, which of the following will not be visible under a microscope?
| 1. | Rough endoplasmic reticulum |
| 2. | Smooth endoplasmic reticulum |
| 3. | Golgi apparatus |
| 4. | Mitochondria |
Which of the following represents the prokaryotic cell
| 1. | bacteria, blue-green algae, mycoplasma, PPLO |
| 2. | bacteria, blue-green algae, microbes, chlorella |
| 3. | bacteria, blue-green algae, slime moulds and Diatoms |
| 4. | bacteria, blue-green algae only |
The ability to move within the membrane is measured as its
| 1. | liquidity | 2. | fluidity |
| 3. | viscosity | 4. | stability |
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