Difference between the prokaryotic and eukaryotic cells in having
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18%
Cell wall
71%
Nuclear membrane
5%
Ribosome
6%
None of these
Which of the following is incorrect?
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3%
Mycoplasma is the smallest cell
6%
Bacteria are 3 to 5 μm in size.
4%
The largest cell is the egg of an ostrich.
87%
Nerve cells are some of the smallest cells.
In prokaryotes, chromatophores are
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35%
Specialized granules responsible for colouration of cells.
5%
Structures responsible for organizing the shape of the organism.
19%
Inclusion bodies lying free inside the cells for carrying out various metabolic activities.
40%
Internal membrane system which becomes extensive and complex in photosynthetic bacteria.
Active transport across biomembrane involves
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22%
Production of ATP
74%
Requirement of energy
3%
Production of toxin
2%
Release of energy
The half-life of a first order reaction is 10 minutes. If initial amount is 0.08mol/litre and
concentration at some instant is 0.01 mol/litre , then t =
concentration at some instant is 0.01 mol/litre , then t =
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21%
10 minutes
50%
30 minutes
18%
20 minutes
11%
40 minutes
Higher order (>3) reactions are rare due to
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65%
Low probability of simultaneous collision of all the reacting species.
21%
Increase in entropy and activation energy as more molecules are involved.
9%
Shifting of equilibrium towards reactants due to elastic collisions.
5%
Loss of active species on collision.
Which of the following compounds will not undergo decomposition on passing electricity
through aqueous solution?
through aqueous solution?
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72%
Sugar
15%
Sodium Chloride
5%
Sodium Bromide
8%
Sodium acetate
Charge required to liberate 11.5 g sodium is
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63%
0.5 F
15%
0.1 F
10%
1.5 F
12%
96500 coulombs
One Faraday of electricity when passed through a solution of copper sulphate deposits
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27%
1 mole of Cu
10%
1 gm atom of Cu
7%
1 molecule of Cu
56%
1gm equivalent of Cu
The best material for study of structure of cell membrane is
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61%
RBC of human
5%
RBC of frog
31%
cheek cell of human
2%
liver cell of rat
.Which of the following will determine the shape of the cells and provides a strong structural support to prevent the bacterium from bursting or collapsing?
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4%
Plasmids
85%
Cell wall
6%
Mesosome
5%
Cell membrane
Which one of the following is not considered as part of the endomembrane
system?
system?
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5%
Golgi complex
84%
Peroxisome
7%
Vacuole
3%
Lysosome
Which of the following cell organelles were discovered after the introduction of
electron microscope?
electron microscope?
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21%
Mitochondria
9%
Endoplasmic reticulum
19%
Ribosomes
50%
Both (b) and (c)
_____________is the important site of formation of glycoproteins and golycolipids.
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17%
SER
6%
Lysosome
77%
Golgi apparatus
0%
Mitochondria
Lipids are insoluble in water because lipid molecules are
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11%
Hydrophilic
84%
Hydrophobic
2%
Neutral
3%
Zwitter ions
Elemental analysis of living and non-living matter revealed that
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21%
Both contain same elements and compounds but latter has organic form.
52%
Carbon and hydrogen are abundant in living organisms.
24%
Living systems contain different set of organic and inorganic compounds.
4%
Non-living systems hardly contain any elements or compounds.
Organic compounds are found in the _____
fraction.
fraction.
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2%
base insoluble
31%
acid insoluble
23%
acid soluble
44%
Both (B) & (C)