The specific rate constant of a first order reaction depends on the
Anonymous Quiz
29%
Concentration of the reactant
11%
Concentration of the product
14%
Time
47%
Temperature
Which of the following cellular structures always disappears during mitosis and
meiosis?
meiosis?
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5%
Plastid and nuclear membrane
66%
Nucleolus and nuclear membrane
19%
Endoplasmic reticulum and mitochondria
9%
Endoplasmic reticulum and plasma membrane
Two sister chromatids are attached with
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5%
Chromocentre
16%
Spindle fibre
76%
Centromere
4%
Chromatid
Chiasma represents the sites of
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10%
Synapsis
73%
Crossing over
6%
Disjunction
11%
Terminalisation
During anaphase-I
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11%
Bivalent divides transversely
67%
Homologues move towards opposite poles
18%
Chromatids separate out
3%
Tetravalents are formed.
The process of cytokinesis refers to the division of
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6%
Nucleus
87%
Cytoplasm
5%
Chromosmes
2%
None of these
Which of the following compounds will not undergo decomposition on passing electricity
through aqueous solution?
through aqueous solution?
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68%
Sugar
16%
Sodium Chloride
6%
Sodium Bromide
10%
Sodium acetate
Charge required to liberate 11.5 g sodium is
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64%
0.5 F
11%
0.1 F
11%
1.5 F
14%
96500 coulombs
One Faraday of electricity when passed through a solution of copper sulphate deposits
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25%
1 mole of Cu
10%
1 gm atom of Cu
9%
1 molecule of Cu
56%
1gm equivalent of Cu
Coconut water from a tender coconut is
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2%
Immature embryo
93%
Free-nuclear endosperm
4%
Innermost layers of the seed coat
2%
Degenerated nucellus
Pollen tablets are available in the market for
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3%
In vitro fertilization
6%
Breeding programmes
86%
Supplementing food
4%
Ex situ conservation
Which one of the following statements is correct?
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6%
The seed in grasses is not endospermic
15%
Mango is a parthenocarpic fruit
67%
A proteinaceous aleurone layer is present in maize grain
11%
A sterile pistil is called a staminode
Emasculation ensures cross-pollination in
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7%
Staminate flower
85%
Bisexual flower
3%
Neuter flower
5%
Pistillate flower
Mendel conducted hybridization experiments on garden pea from:
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2%
1842-1847
91%
1856-1863
6%
1863-1873
1%
1820-1831
The movement of solvent molecules through a semi-permeable membrane is called:
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26%
Diffusion
70%
Osmosis
4%
Filtration
1%
Adsorption
Which of the following processes is exothermic?
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21%
Melting of ice
18%
Evaporation of water
55%
Combustion of fuel
7%
Boiling of water