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Mcqs MBBS Exams India
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(Single Best Answer) Question 31: The amino acid residue having an imino side chain is ?
A) Lysine
B) Histidine
C) Tyrosine
D) Proline
Answer (Select an option above to get the answer):
(Single Best Answer) Question 32: Which one of the following molecules is used for cell signalling ?
A) CO2
B) O2
C) NO
D) N2
Answer (Select an option above to get the answer):
(Single Best Answer) Question 33: All of the following hormones have cell surface receptors except ?
A) Adrenalin
B) Growth hormone
C) Insulin
D) Thyroxine
Answer (Select an option above to get the answer):
(Single Best Answer) Question 34: Fluoride, used in the collection of blood samples for glucose estimation, inhibits the enzyme ?
A) Glucokinase
B) Hexokinase
C) Enolase
D) Glucose-6-phosphatase
Answer (Select an option above to get the answer):
(Single Best Answer) Question 35: A buffer is most effective at a pH of about 4.5 is ?
A) Acetate buffer
B) Bicarbonate buffer
C) Phosphate buffer
D) Tris buffer
Answer (Select an option above to get the answer):
(Single Best Answer) Question 36: Enzyme replacement therapy is available for the treatment of the following disorder ?
A) Gaucher disease
B) Niemann-Pick disease
C) Hunter syndrome
D) Phenylketonuria
Answer (Select an option above to get the answer):
(Single Best Answer) Question 37: NADPH is produced by ?
A) Glycolysis
B) Citric acid cycle
C) Hexose Monophosphate Shunt
D) Glycogenesis
Answer (Select an option above to get the answer):
(Single Best Answer) Question 38: Mitochondria is involved in all of the following, except ?
A) ATP production
B) Apoptosis
C) Tricarboxylic acid cycle
D) Fatty acid biosynthesis
Answer (Select an option above to get the answer):
(Single Best Answer) Question 39: The conjugation of bilirubin to glucuronic acid in the liver ?
A) Converts a hydrophilic compound to a hydrophobic one
B) Converts a hydrophobic compound to a hydrophilic one
C) Enables the bilirubin molecule to cross the cell membrane
D) Is increased during neonatal jaundice
Answer (Select an option above to get the answer):
(Single Best Answer) Question 40: Replication and transcription are similar processes in mechanistic terms because both ?
A) Use RNA primers for initiation
B) Use dexoyribonucleotides as precursors
C) Are semiconserved events
D) Involve phosphodiester bond formation with elongation occuring in 5'-3' direction
Answer (Select an option above to get the answer):

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