JNTU
JNTU B.Pharmacy I BIOCHEMISTRY Previous Question Paper (April - 2023 - R17)
Note: i) Question paper consists of Part A, Part B.
ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions.
iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Answer all questions. (25 Marks)
Give the biological significance of carbohydrates.
Answer
Carbohydrates serve as the primary source of energy for cellular activities and act as structural components in cell walls (e.g., cellulose) and connective tissues. They also play critical roles in cell-cell recognition and as precursors for the synthesis of other biomolecules like amino acids and lipids.
Define gluconeogenesis and glycogenesis.
Answer
Gluconeogenesis is the metabolic process of synthesizing glucose from non-carbohydrate precursors, such as lactate, glycerol, and glucogenic amino acids. Glycogenesis is the process of synthesizing glycogen from glucose molecules for storage in the liver and muscles.
Write the structure and functions of Cholesterol.
Answer
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List the disorders of lipid metabolism.
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Give any two differences between DNA and RNA.
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Write a short note on Gout.
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Write the functions of nucleic acids.
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Classify proteins with examples.
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What are allostearic enzymes? Give examples.
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Write the equation for enzyme kinetics.
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Part B
Answer any one question from each unit. (50 Marks)
Describe the Hexose Monophosphate shunt pathway.
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Describe the citric acid cycle with energetics and significance.
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Discuss the β oxidation of fatty acids.
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Write the energetics for palmitic acid oxidation.
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Write short note on Phenylketonuria and alkaptonuria.
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What are Ketone bodies? Discuss about Ketoacidosis.
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Discuss the biosynthesis of purine nucleotide.
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Explain about the process of translation in Biosynthesis of proteins.
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Write short note on Genetic code.
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Explain in detail about ATP and its biological significance.
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What are carbohydrates? Classify it.
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Discuss the biological role of carbohydrates.
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Define enzyme and discuss the various types of enzyme inhibitors with suitable examples.
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What are Isoenzymes and explain about their clinical significance?
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