FSC Biology MCQs Part 1 bio Part 2 HSSC Pre Medical Book Questions first year and second-year bio mcqs

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Carbohydrates, fats & proteins are essential for:
A. Metabolic processes of an organism B. Providing energy
C. Formation of sturctures D. All of these
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[explanation]d[/explanation]
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Deficiency of K+ causes:
A. Stunted growth & strong chlorosis B. No electron transport chains
C. Premature death of leaves. D. Stunted growth of roots.
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[explanation]c[/explanation]
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Strong chlorosis is due to the deficiency of _____ in plants.
A. Magnesium B. Nitrogen
C. Potassium D. Phosphorus
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[explanation]b[/explanation]
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Nodules on roots of leguminous plants have _____ bacteria
A. Anaerobic B. Nitrogen fixing
C. Nitrifying D. Ammonifying
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[explanation]b[/explanation]
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Earthworm is an example of ______ feeder
A. Detritus B. Fluid
C. Macrophageus D. Filter
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[explanation]A[/explanation]
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Parasites capable of living independently of its host at times is called as _______ parasite.
A. Obligate B. Strict
C. Facultative D. Endoparasite
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[explanation]c[/explanation]
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[question]
A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is
A. Pyrolysis B. Pyrosis
C. Peristalsis D. Dyspepsia
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[explanation]b[/explanation]
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[question]
Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is
A. Creatin B. Gastrin
C. Secretin D. Pepsin
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[explanation]c[/explanation]
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It is about 2.4 meter in length and comprising about two fifth of the small intestine
A. Duodenum B. Jejunum
C. Ileum D. Caecum
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[explanation]b[/explanation]
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[question]
One of the commonest cause of food poisoning are the toxins produced by
A. Azobacter B. Nitrosomonas
C. Campylobacter D. Nitrobacter
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[explanation]c[/explanation]
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The liquid that escapes during defrosting frozen meat contains _____ bacteria
A. Campylobacter B. Nitrobacter
C. Azobacter D. Salmonella
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[explanation]d[/explanation]
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