MCQs for AIPMT/CEET/Pre Medical
Q1: Nitrifying bacteria converts
(a) atmospheric nitrogen into soluble forms
(b) convert ammonia to nitrate
(c) ammonia to nitrogen
(d) nitrate to nitrogen.
Q2: Amino acids are mostly synthesized from
(a) mineral acids
(b) fatty acids
(c) volatile acids
(d) alpha-ketoglutaric acid
Q3: Which of the following is a micro-nutrient for plants?
Q4: If a plant’s younger leaves are yellowing but older one remains green, what could be the most probable cause of plant’s blight?
(a) Improper sunlight
(b) Lack of nitrogen fixing bacteria in soil
(c) Deficiency of immobile mineral nutrient
(d) Deficiency of mobile mineral nutrient
Q5: Enzyme involved in nitrogen assimilation is ___________.
(a) nitrate reductase
Q6: Manganese is required in
(a) nucleic acid synthesis
(b) plant cell wall formation
(c) photolysis of water during photosynthesis
(d) chlorophyll synthesis
Q7: Grey spots of oat are due to the deficiency of which element?
Q8: The immobile element in plants is
Q9: Which aquatic fern performs Nitrogen fixation?
Q10: Boron in green plants assist in
(a) sugar transport
(b) enzymes activation
(c) as enzyme cofactor
1: (b) convert ammonia to nitrate
2: (d) alpha-ketoglutaric acid
3: (c) Iodine
4: (c) Deficiency of immobile mineral nutrient
5: (b) nitrogenase
6: (c) photolysis of water during photosynthesis
7: (c) Mn
8: (a) nitrogen
9: (b) Azolla
10: (b) enzymes activation