Q. 2
Differentiate between enzymes, co-enzymes, and co-factors in a biological cell. Describe with a flow chart which enzymes/co-enzymes take part in glycolysis and Kreb's Cycle.
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FPSC · CSS 2025
Zoology
This paper
Zoology · all yearsQ. 2 · Differentiate between enzymes, co-enzymes, and…Q. 3 · Explain the transcription and processing…Q. 4 · Explain with diagrams the structure,…Q. 5 · Differentiate between blood, plasma, and…Q. 6 · Discuss the economic and medical…Q. 7 · What are the advantages of…Q. 8 · Write short notes on any…With this paperPart-I MCQs20Official PDF2 pp← 20232026 →3 hours · questions hide until you reveal them
Part II
Q. 3
Explain the transcription and processing of mRNA in the nucleus. Describe in detail the roles of mRNA, tRNA, and rRNA in polypeptide synthesis.
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Q. 4
Explain with diagrams the structure, synthesis, and functions of thyroid hormones. Describe hypo-and-hyper-thyroidism in detail.
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Q. 5
Differentiate between blood, plasma, and serum. Explain the various types and sub-types of blood cells in mammals. What is immunity? Explain the roles of different types of lymphocytes in immunity.
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Q. 6
Discuss the economic and medical importance of ticks and mites of order Acari to human well-being.
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Q. 7
What are the advantages of migration of birds? What are the major migratory routes of birds? How birds navigate?
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Q. 8
Write short notes on any TWO of the following:
- (a)Mechanism of action of protein hormones
- (b)Leishmaniasis in human
- (c)Types of feathers in birds
(20)
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About this paper
The 2025 CSS Zoology paper set by the Federal Public Service Commission. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet. Open the official paper beside the questions to check any of them.
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