Oxygen is not produced during photosynthesis by
Options
(a) Chara (b) Cycas (c) Nostoc (d) Green sulphur bacteria
Correct Answer:
Green sulphur bacteria
Explanation:
Green sulphur bacteria do not use H2O as source […]
Oxaloacetic acid changes to the malic acid by the action of enzyme
Options
(a) oxaloacetic dehydrogenase (b) malic dehydrogenase (c) PEP dehydrogenase (d) RMP dehydrogenase
Correct Answer:
malic dehydrogenase
Explanation:
No explanation available. […]
Osteomalacia occurs due to the deficiency of
Options
(a) vitamin A (b) vitamin C (c) vitamin B (d) vitamin D
Correct Answer:
vitamin D
Explanation:
Osteomalacia is the term used for weak bones, […]
Osmosis involves
Options
(a) flow of water through a semi permeable membrane (b) flow of water without a membrane (c) flow of solute through a semi permeable membrane (d) flow of solute without […]
A few organisms are known to grow and multiply at temperatures of 100 – 105ºC. They belong
Options
(a) marine archaebacteria (b) thermophilic sulphur bacteria (c) hot-spring blue-green algae (d) thermophilic, subaerial fungi
Opening of floral buds into flowers, is a type of
Options
(a) autonomic movement of variation (b) paratonic movement of growth (c) autonomic movement of growth (d) autonomic movement of locomotion.
Correct Answer: […]
Open circulatory system is present in:A)Arthropods,B)Annelids,C) Chordates, D)Molluscs
Options
(a) Chordates only (b) Chordates and Annelids (c) Molluscs only (d) Arthropods and Molluscs
Correct Answer:
Arthropods and Molluscs
Explanation:
Open circulatory system occurs […]
One molecule of NADH₂ is equivalent to how many ATP molecules?
Options
(a) 1 (b) 3 (c) 7 (d) 5
Correct Answer:
3
Explanation:
Oxidation of one molecule of NADH₂ produces 3 ATP […]
One mineral activates the enzyme catalase and the other is a constituent of the ring structure of chlorophyll. These minerals are respectively
Options
(a) iron and magnesium (b) iron ans manganese (c) magnesium […]
Omnis cellula-e cellula was stated by
Options
(a) Schwarm (b) Schleidan (c) Purkinje (d) Virchow
Correct Answer:
Virchow
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
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