JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech I Year CELL BIOLOGY Previous Question Paper (September - 2023 - R22)
Note: This question paper contains two parts A and B. Part- A for 10 marks, Part - B for 50 marks. Part-A is a compulsory question which consists of ten sub-questions. Part-B consists of ten questions; answer five questions, selecting one from each unit.
Part A
Describe cell theory.
Answer
Cell theory states that all living organisms are composed of one or more cells, the cell is the basic unit of structure and organization in organisms, and all cells arise from pre-existing cells.
What is the function of lysosome?
Answer
Lysosomes function as the cell's digestive system, containing hydrolytic enzymes that break down waste materials, foreign substances, and worn-out organelles.
What are integral membrane proteins?
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Define endocytosis.
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What are cadherins?
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Describe hemidesmosomes.
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What is interphase?
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Define protooncogenes.
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What is CAMP?
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Define apoptosis.
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Part B
Describe the structure of a eukaryotic cell and discuss how it is different from a prokaryotic cell.
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Write about structure and function of:
Peroxisomes.
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Endoplasmic reticulum.
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Write in detail about active and passive transport.
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Describe the chemical composition, molecular arrangement and function of plasma membrane.
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Discuss about various cell adhesion molecules along with main stages of cell adhesion.
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Describe main components, function of mitotic apparatus and their respective function.
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Write about various stages of meiosis and how it differs from mitosis.
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Write about tumor suppressor genes and molecular basis of cancer.
Write about tumor suppressor genes.
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Emphasize upon molecular basis of cancer.
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Give an overview of various receptors.
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Describe apoptosis its mechanism and explain how internal signals trigger apoptosis.
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