Related QA - Biology - acid
1148.The acidification of oceans is increasing. Why this phenomenon a cause of concern?
A. The growth and survival of calcareous phytoplankton will be adversely affected
B. The growth and survival of coral reef will be adversely affected
C. The survival of some animals that have phytoplankton larvae will be adversely affected
Choose the correct codes from the given below
A. The growth and survival of calcareous phytoplankton will be adversely affected
B. The growth and survival of coral reef will be adversely affected
C. The survival of some animals that have phytoplankton larvae will be adversely affected
Choose the correct codes from the given below
A and B only
B and C only
None
A,B and C
1155.Acid rain is caused by the pollution of environment by?
A. Nitrous oxide
B. Sulphur dioxide
C. Hydrogen
D. Carbon
Choose the correct codes from the given below
A. Nitrous oxide
B. Sulphur dioxide
C. Hydrogen
D. Carbon
Choose the correct codes from the given below
A and B only
A, B and C only
A,B and C
A, B, C, and D
1198.Acid rain is caused by the pollution of environment by
Carbon dioxide and nitrogen
Carbon monoxide and carbon dioxide
Ozone and carbon dioxide
Nitrous oxide and sulphur dioxide
4034.The pyruvic acid formed during glycolysis is oxidized to CO2 and H2O in a cycle called
Calvin cycle
Nitrogen cycle
Hill reaction
Krebs cycle
4040.Acid rain is mainly caused due to increase in the levels of the gas(es)
SO2 only
CO2 only
SO2, CO2
NO2 and SO2
4064.Inflammation of joints due to accumulation of uric acid crystals is called as
Gout
Myasthenia gravis
Osteoporosis
Osteomalacia
4091.In certain amino acids, which one of the following elements is found in addition to carbon, hydrogen, nitrogen and oxygen
Phosphorus
Zinc
Calcium
Sulphur
12879.Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?
Mackerel
Mystus
Mangur
Mrigala
Explanation:
Rastrelliger (Mackerel) is a marine fish, Mystus, Magus and Mrigala are freshwater fishes.
Rastrelliger (Mackerel) is a marine fish, Mystus, Magus and Mrigala are freshwater fishes.
12880.Match Column-I with Column-II and select the correct option using the codes given below :
Codes:
a b c d
| Column-I | Column-II |
|---|---|
| a. Citric acid | (i)Trichoderma |
| b. Cyclosporin A | (ii) Clostridium |
| c. Statins | (iii) Aspergillus |
| d. Butyric acid | (iv) Monascus |
Codes:
a b c d
(iii) (iv) (i) (ii)
(iii) (i) (ii) (iv)
(iii) (i) (iv) (ii)
(i) (iv) (ii) (iii)
Explanation:
Citric acid - Aspergillus
Cyclosporin A - Trichoderma
Statins - Monascus
Butyric acid - Clostridium
Citric acid - Aspergillus
Cyclosporin A - Trichoderma
Statins - Monascus
Butyric acid - Clostridium
15466.N-acetylmuramic acid is found in
Cell wall component of plant
Cell wall component of Gram positive bacteria
Cell wall component of fungi
Viral coat material
15769.Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
Adenine, Thymine – Purines
Thymine, Uracil – Pyrimidines
Uracil, Cytosine – Pyrimidines
Guanine, Adenine – Purines
15777.What is true about ribosomes?
These are found only in eukaryotic cells
These are self-splicing introns of some RNAs.
The prokaryotic ribosomes are 80S, where "S" stands for sedimentation coefficient
These are composed of ribonucleic acid and proteins.
15804.Specificity of protein in enzyme action depends upon
Active sites
Km constant
Linear sequence of amino acids
Turn over number
15808.An enzyme that joins the ends of two strands of nucleic acid is
polymerase
ligase
synthetase
helicase
15818.Assertion: Arachidic acid is an unsaturated fatty acid.
Reason: There are one or more double bonds between carbon atoms in unsaturated fatty acids.
Reason: There are one or more double bonds between carbon atoms in unsaturated fatty acids.
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
Assertion is true, but Reason is false.
Both Assertion and Reason are false.
15820.Which one of the following amino-acids was not found to be synthesized in Miller s experiment?
Glutamic acid
Aspartic acid
Glycine
Alanine