Download MBBS TMU 1st Year 2019 MBS103 Biochemistry I Question Paper

Download MBBS (Bachelor of Medicine, Bachelor of Surgery) TMU (Teerthanker Mahaveer University) First Year (1st Year) 2019 MBS103 Biochemistry I Previous Question Paper

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MBBS I (First) Professional Examination 2018-19

Course Code: MBS103

Paper ID: 03219208

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Biochemistry -I

Time: 2 Hours 40 Minutes

Max Marks: 40

Note: Attempt all questions. Draw proper diagrams to support your answer.

Part 'B'

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)
Discuss the biochemical alterations seen in blood and urine in different types of Jaundice. (10)

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Describe the importance of serum enzyme estimations in clinical diagnosis. (10)
Write short notes on the following: (2x5=10)
1. Transport mechanisms of glucose
2. Phenylketonuria
3. Inhibitors of ETC
4. Second messengers
5. Ketogenesis

Roll No.

MBBS I (First) Professional Examination 2018-19

Student's Signature

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Course Code: MBS103

Time: 20 Minutes

Biochemistry - I

Part 'A'

Student's Name

Invigilator's Signature

Paper ID: 03219208

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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.

Which of the following is not present in human cell membrane:
1. Endotoxin
2. Cardiolipin
3. Proteoglycan
4. Lipopolysaccharide
All the following are branched chain amino acids except:
1. Isoleucine
2. Threonine
3. Valine
4. Leucine
Which of the following contains only alpha glycoside linkages:
1. Starch
2. Cellulose
3. Lactose
4. Sucrose
Which of the following is not a phospholipid:
1. Cerebroside
2. Sphingomyelin
3. Lecithin
4. Cephalin
N-3 of purine ring is donated by:
1. Aspartate
2. Ammonia
3. Glycine
4. Glutamine
In a competitive inhibition:
1. Km is decreased Vmax remains same
2. Km is increased Vmax remains same
3. Km is decreased Vmax is increased
4. Km is increased Vmax is increased
Gluconeogenesis is inhibited by:
1. Insulin
2. Glucocorticoids
3. Glucagon
4. Growth hormone
Deficiency of glucose-6-phosphate dehydrogenase causes:
1. Dicoumarol
Fatty liver may be prevented by the following, except:
1. Choline
2. Lecithin
The main apoprotein present in chylomicron:
1. B100
2. E2
3. D
4. B48
Ammonia is trapped in brain by:
1. Glutamate dehydrogenase reaction
2. Glutamine reaction
3. Glutamine Synthetase reaction
4. Urea Synthesis cycle
Acute intermittent porphyria (AIP) is:
1. Characterized by photodermatitis
2. An autosomal dominant trait
3. Hemolytic anemia is associated
4. More common in men than women
Serum acid Phosphatase (ACP) level is increased in:
1. Excess phosphate intake
2. Rickets
3. Hepatoma
4. Prostatic carcinoma
Which of the following is a simple protein:
1. Casein
2. Insulin
3. Hemoglobin
4. Tyrosinase
Name the defective enzyme in methyl malonyl aciduria:
1. Phenylalanine Hydroxylase
2. Methyl malonyl CoA mutase
3. Propionyl CoA carboxylase
4. Cystathionine synthase
Valinomycin inhibit oxidative phosphorylation because:
1. It inhibits cytochrome oxidase
2. It inhibits ATP synthase
3. It forms a complex with NADH
4. It makes mitochondria permeable to potassium
The most potent thyroid hormone:
1. T4
2. T3
3. T2
4. T1
Amino acid carrier defect is found in:
1. Maple Syrup Urine disease
2. Alkaptonuria
3. Phenylketonuria
4. Cystinuria
Triglycerides in serum are transported by:
1. HDL
2. IDL
3. LDL
4. Chylomicrons