In which animal is nerve cell present but brain absent?
Options
(a) Sponge (b) Earthworm (c) Cockroach (d) Hydra
Correct Answer:
Hydra
Explanation:
A primitive type of nervous system,without brain is found in […]
In humans, aqueduct of sylvius is found in
Options
(a) heart (b) kidney (c) lung (d) brain
Correct Answer:
brain
Explanation:
Cavity of midbrain called iter or aqueduct of sylvius communicates with fourth […]
How many ATP molecules are produced by aerobic oxidation of one molecule of glucose?
Options
(a) 2 (b) 4 (c) 38 (d) 34
Correct Answer:
38
Explanation:
38 ATP molecules are produced by […]
Deltoid ridge is found in which one of the following bones
Options
(a) Radius (b) Tibia (c) Femur (d) Humerus
Correct Answer:
Humerus
Explanation:
Humerus is differentiated into three parts head, shaft and […]
Collagen is
Options
(a) Lipid (b) Carbohydrate (c) Globular protein (d) Fibrous protein
Correct Answer:
Fibrous protein
Explanation:
It is albumious protein which on boiling in water, changes into gelatin.
Alary muscle is associated with
Options
(a) Heart and circulation (b) Malpighian tubules and excretion (c) Trachea and respiration (d) None of the above
Correct Answer:
Heart and circulation
Explanation:
Alary muscles are […]
Acoustic spots in frog is present in
Options
(a) Ossious labyrinth (b) Carotid (c) Membranous labyrinth (d) All of these
Correct Answer:
Membranous labyrinth
Explanation:
Acoustic spots occur in the ampullae of […]
In photosynthesis energy from light reaction to dark reaction is transferred in the form of
Options
(a) ADP (b) ATP (c) RuDP (d) Chlorophyll
Correct Answer:
ATP
Explanation:
No explanation available. Be the first […]
Unit of entropy is
Options
(a) JK⁻¹ mol⁻¹ (b) J mol⁻¹ (c) J⁻¹ K⁻¹ mol⁻¹ (d) JK mol⁻¹
Correct Answer:
JK⁻¹ mol⁻¹
Explanation:
Entropy change (ΔS) is given by ΔS = Δq(r)/T, therefore , […]
Heat of combustion ΔH for C(s) , H₂(g)and CH₄(g) are -94, -68 and -213 kcal/mol. Then ΔH for C(s) + 2H₂(g) → CH₄(g)is
Options
(a) -17 kcal (b) -111kcal (c) -170 kcal (d) -85 […]
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