Download MBBS (Bachelor of Medicine, Bachelor of Surgery) TMU (Teerthanker Mahaveer University) First Year (1st Year) 2019 MBS103 Biochemistry I Previous Question Paper
MBBS I (First) Professional Examination 2018-19
Course Code: MBS103 Paper ID: 03219208
Biochemistry -I
Time: 2 Hours 40 Minutes
Max Marks: 40
Note: Attempt all questions. Draw proper diagrams to support
your answer.
Part `B'
1.
What is the normal blood glucose level? Discuss the factors
regulating blood glucose in the fasting and postparandial
states. Write the diagnostic criteria for diabetes mellitus.
(10)
2.
Discuss the biochemical alterations seen in blood and urine
in different types of Jaundice. (10)
3.
Describe the importance of serum enzyme estimations in
clinical diagnosis. (10)
4.
Write short notes on the following: (2x5=10)
a)
Transport mechanisms of glucose
b)
Phenylketonuria
c)
Inhibitors of ETC
d)
Second messengers
e)
Ketogenesis
MBBS I (First) Professional Examination 2018-19
Roll No.
Student's Name
Student's Signature
Invigilator's Signature
Course Code:MBS103
Paper ID: 03219208
Biochemistry ? I
Part `A'
Time: 20 Minutes
Max Marks: 10
Note: 1. Attempt all questions and return this part of the question paper to the invigilator after 20 Minutes.
2. Please tick () correct one only. Cutting, overwriting or any other marking are not allowed.
3. For answering please use Ball- pen only.
a)
Hypoglycemia
Q.1
Sodium-Potassium pump is inhibited by:
b)
Mental retardation
a)
Phlorizin
c)
Hemolytic Anemia
b)
Digoxin
d)
Cataract
c)
Valinomycin
d)
Dicoumarol
Q.10 Fatty liver may be prevented by the
following, except:
Q.2
Which of the following is not present in
a)
Choline
human cell membrane:
b)
Ethanol
a. Endotoxin
c)
Lecithin
b. Cardiolipin
d)
Methionine
c. Proteoglycan
d. Lipopolysaccharide
Q.11 The main apoprotein present in
chylomicron:
Q.3
All the following are branched chain amino
a)
B100
b)
E2
acids except:
c)
D
d)
B48
a)
Isoleucine
b)
Threonine
P.T.O.
c)
Valine
d)
Leucine
Q.12 Ammonia is trapped in brain by:
Q.4
Which of thefollowing contains only alpha
a)
Glutamate dehydrogenase reaction
glycoside linkages:
b)
Glutamine reaction
a)
Starch
c)
Glutamine Synthetase reaction
b)
Cellulose
d)
Urea Synthesis cycle
c)
Lactose
d)
Sucrose
Q.13 Acute intermittent porphyria (AIP) is:
a)
Characterized by photodermatitis
Q.5
Which of the following is not a
b)
An autosomal dominant trait
phospholoipid:
c)
Hemolytic anemia is associated
a)
Cerebroside
d)
More common in men than women
b)
Sphingomyelin
c)
Lecithin
Q.14 Serum acid Phosphatase (ACP) level is
d)
Cephalin
increased in:
a)
Excess phosphate intake
Q.6
N-3 of purine ring is donated by:
b)
Rickets
a)
Aspartate
c)
Hepatoma
d)
Prostatic carcinoma
b)
Ammonia
c)
Glycine
Q.15 Which of the following is a simple protein:
d) Glutamine
a)
Casein
b)
Insulin
Q.7
In a competitive inhibition:
c)
Hemoglobin
a)
Km is decreased Vmax remains
d)
Tyrosinase
same
b)
Km is increased Vmax remains same
Q.16 Name the defective enzyme in methyl
c)
Km is decreased Vmax is increased
malonyl aciduria:
d)
Km is increased Vmax is increased
a)
Phenylalanine Hydroxylase
Q.8
Gluconeogenesis is inhibited by:
b)
Methyl malonyl CoA mutase
a)
Insulin
c)
Propionyl CoA carboxylase
b)
Glucocorticoids
d)
Cystathionine synthase
c)
Glucagon
d)
Growth hormone
Q.17 Valinomycin
inhibit
oxidative
Q.9
Deficiency of glucose-6-phosphate
phosphorylation because:
dehydrogenase causes:
a)
It inhibits cytochrome oxidase
b)
It inhibits ATP synthase
c)
It forms a complex with NADH
d)
It makes mitochondria permeable to
potassium
Q.18 The most potent thyroid hormone:
a)
T4
b)
T3
c)
T2
d)
T1
Q.19 Amino acid carrier defect is found in:
a)
Maple Syrup Urine disease
b)
Alkaptonuria
c)
Phenylketonuria
d)
Cystinuria
Q.20 Triglycerides in serum are transported by:
a)
HDL
b)
IDL
c)
LDL
d)
Chylomicrons
This post was last modified on 17 February 2022