The bacteria was reduce nitrates to molecular nitrogen is Pseudomonas, Sulphur containing amino acid is Cysteine

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Free Online Mock Biology Multiple Choice Test on Organism and Environment

Sub Category : Organism and Environment	Test : 2	Time Left :
1.The amount of carbon fixed by photosynthesis is nearly
(1)5Ã- 10power13 kg/year (2) 5 Ã- 10power13 kg/year (3) 6 Ã- 10power13 kg/year (4) 7 Ã- 10power13 kg/year.
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2.The bacteria which reduce nitrates to molecular nitrogen is
(1) Nitrobacter (2) Nirocystis (3) Pseudomonas (4) All the above.
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3.Which is not the symbiotic nitrogen fixing bacteria?
(1) Frankia (2) Xanthomonas (3) Rhizobium (4) None of these.
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4.Sulphur containing amino acid is?
(1) Cysteine (2) Valine (3) Arginine (4) None of these.
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5.Sulphate is produced from the aerobic breakdown of proteins?
(1) Penicillium (2) Neurospora (3) Both of these (4) None of these.

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Free Online Mock Biology Multiple Choice Test on Organism and Environment