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)
Organic compounds tightly bound to the apoenzyme are
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16%
Co-factors
68%
Prosthetic group
12%
Co-enzymes
4%
Holoenzyme
Carbohydrates are -
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14%
Polyhydroxy aldehydes
5%
Polyhydroxy ketones
3%
Polyhydroxy alkaloids
79%
Both (a) and (b)
Micro molecules have molecular weight
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9%
Less than 100 Da
79%
Less than 1000 Da
3%
More than 100 Da
8%
More than 1000 Da