Q.1: Which enzyme catalyse the synthesis of acetylcholine from acetyl CoA and choline:

A) Choline acetyltransferase
B) Acetylcholine esterase
C) Acetylcholine hydrolase
D) Pyruvate dehydrogenase
Q.2: The coenzyme required for hydroxylation of dopamine to norepinephrine is:

A) Tetrahydrobiopterin
B) Pyridoxal pyrophosphate
C) Ascorbic acid
D) S-Adenosyl methionine
Q.3: The mechanism of action of acetylcholine is through:

A) α – Adrenergic receptors
B) β – Adrenergic receptors
C) Nicotinic receptors
D) Dopamine-1 receptor
Q.4: Rhodopsin contains:

A) Opsin and 11-cis retinal
B) Opsin and 11-cis retinol
C) Opsin and all trans retinal
D) Opsin and all trans retinol
Q.5: 11-Cis retinol is converted to 11-cis retinal by :

A) Retinal isomerase
B) Retinenereductase
C) Retinol dehydrogenase
D) Retinol isomerase
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