Which of the following yield ATP during contraction of muscles?
Options
(a) myoglobin (b) creatinine phosphate (c) haemoglobin (d) myosin
Correct Answer:
creatinine phosphate
Explanation:
Creatine phosphate is a phosphagen, which is a […]
The First reaction in photorespiration is
Options
(a) carboxylation (b) oxygenation (c) decarboxylation (d) phosphorylation
Correct Answer:
oxygenation
Explanation:
While doing studies on plant productivity it was found that a considerable proportion of […]
Sleep movements of leaves in some plants are due to
Options
(a) excess of respiration (b) leaves stop photosynthesis (c) excess of transpiration (d) osmotic changes at the base of leaves
Correct Answer: […]
PEP is the CO₂ receptor in which plants?
Options
(a) C₁ (b) C₂ (c) C₃ (d) C₄
Correct Answer:
C₄
Explanation:
CO₂ in C₄ plants (sugarcane, maize) combines with a 3-carbon compound phosphoenol […]
The oxidation number of nitrogen in (N₂H₅)⁺ is
Options
(a) -2 (b) 2 (c) 3 (d) -3
Correct Answer:
-2
Explanation:
No explanation available. Be the first to write the explanation for this […]
If diploid number of chromosomes in a plant is 40, then the number of chromosomes in a gamete will be
Options
(a) 40 (b) 30 (c) 20 (d) 10
Correct Answer:
20
Explanation: […]
Organ of corti is found in
Options
(a) heart (b) inner ear (c) kidneys (d) nasal chamber
Correct Answer:
inner ear
Explanation:
The scala media is the most important canal or channel of […]
When 2-bromobutane reacts with alcoholic KOH, the reaction is called
Options
(a) halogenation (b) chlorination (c) hydrogenation (d) dehydrohalogenation
Correct Answer:
dehydrohalogenation
Explanation:
No explanation available. Be the first to write the explanation […]
The mass of an object changes from 0.002 g to 0.00025 g in a time period of 1500 years.The half-life of the object is
Options
(a) 500 yrs (b) 850 yrs (c) 700 yrs […]
If 300 mL of a gas at 27⁰ C is cooled to 7⁰C at constant pressure, its final volume will be
Options
(a) 350 mL (b) 540 mL (c) 135 mL (d) 280 […]
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