+10,000 Biology Questions, Tests and Polls
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+10,000 Biology Questions and Answers
Written and organized in a logical way to make the learning of basic Biology easier
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Match the followings an choose the correct combination from the options given:
List - I List - II
a. Sulphur 1. chlorophyll b. Zinc 2. nitrogenase c. Magnesium 3. Methionine d. Molybdenum 4. Auxin
Anonymous Quiz
12%
a – 1, b – 2, c – 3, d – 4
52%
a – 3, b – 4, c – 1, d – 2
25%
a – 3, b – 1, c – 2, d – 4
11%
a – 2, b – 4, c – 1, d – 3
Active transport from outside to inside of molecules across a membrane requires
Anonymous Quiz
9%
Phloroglucinol
19%
Acetyle chlorine
64%
ATP
8%
Cyclic AMP
Which one of the following mineral elements plays an in biological nitrogen fixation?
Anonymous Quiz
12%
Copper
24%
Zinc
30%
Manganese
35%
Molybdenum
Mineral salts which are absorbed by the roots from soil are in the form of
Anonymous Quiz
16%
Very concentrated solution
33%
Concentrated solution
38%
Dilute solution
13%
Very dilute solution
Which of the following is a rootless aquatic plant in which a portion of the leaf forms a tiny sac for
trapping insects?
Anonymous Quiz
30%
Utricularia
24%
Drosera
35%
Nepenthes
11%
Dionaea
Gray spots of oat are caused by deficiency of
Anonymous Quiz
20%
Fe
38%
Zn
29%
Mn
13%
Cu
fertility of soil in rice fields can be improved by
Anonymous Quiz
44%
Blue green algae
14%
Sodium chloride
31%
Rhizobium
11%
Gypsum
Fall of immature leaf is due to deficiency of
Anonymous Quiz
11%
Sodium
36%
Phosphorous
16%
Sulphur
36%
Zinc
Exanthema is due to deficiency of
Anonymous Quiz
13%
B
38%
Mo
32%
Mn
17%
Cu
Little leaf is caused due to the deficiency of
Anonymous Quiz
20%
Boron
21%
Copper
35%
Zinc
24%
Phosphorus
Chlorosis occurs when plants are grown in
Anonymous Quiz
22%
Strong light
22%
Shade
30%
Dark
26%
Fe free medium
Element essential for photolysis of water is
Anonymous Quiz
17%
Carbon
44%
Oxygen
28%
Chlorine
11%
Nitrogen
carbon become available to crop plants in the form of
Anonymous Quiz
13%
Element carbon
32%
Carbonates
46%
Carbon dioxide
9%
Amino acids