MCQ Collection
Pakistan MCQs
Practice Pakistan questions with answers and explanations.
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A.
A lipid made only of glycerol
B.
A polysaccharide without protein
C.
A protein with attached carbohydrate groups
D.
A DNA-protein chromosome only
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Correct Answer: C. A protein with attached carbohydrate groups
Explanation:
Glycoproteins contain covalently attached carbohydrate chains.
They function in receptors, recognition and cell adhesion.
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A.
DNA replication
B.
Translation
C.
Photolysis
D.
Krebs cycle
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Correct Answer: D. Krebs cycle
Explanation:
Acetyl-CoA and other intermediates enter the Krebs cycle.
Different food molecules therefore converge on common respiratory pathways.
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A.
Inside ribosomal RNA
B.
Within bone mineral
C.
Only in the nucleus
D.
Outer surface of the plasma membrane
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Correct Answer: D. Outer surface of the plasma membrane
Explanation:
Glycolipids are membrane lipids with carbohydrate groups.
They contribute to cell recognition and membrane stability.
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A.
Its molecules are polar
B.
It is nonpolar
C.
It has no hydrogen bonds
D.
It is always acidic
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Correct Answer: A. Its molecules are polar
Explanation:
Partial charges on water molecules surround ions and polar solutes.
This promotes dissolution and transport in living systems.
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A.
Outer surface of the plasma membrane
B.
Inside ribosomal RNA
C.
Within bone mineral
D.
Only in the nucleus
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Correct Answer: A. Outer surface of the plasma membrane
Explanation:
Glycolipids are membrane lipids with carbohydrate groups.
They contribute to cell recognition and membrane stability.
Choose an option to check your answer.
A.
It is nonpolar
B.
Its molecules are polar
C.
It has no hydrogen bonds
D.
It is always acidic
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Correct Answer: B. Its molecules are polar
Explanation:
Partial charges on water molecules surround ions and polar solutes.
This promotes dissolution and transport in living systems.
Choose an option to check your answer.
A.
Inside ribosomal RNA
B.
Outer surface of the plasma membrane
C.
Within bone mineral
D.
Only in the nucleus
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Correct Answer: B. Outer surface of the plasma membrane
Explanation:
Glycolipids are membrane lipids with carbohydrate groups.
They contribute to cell recognition and membrane stability.
Choose an option to check your answer.
A.
It is nonpolar
B.
It has no hydrogen bonds
C.
Its molecules are polar
D.
It is always acidic
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Correct Answer: C. Its molecules are polar
Explanation:
Partial charges on water molecules surround ions and polar solutes.
This promotes dissolution and transport in living systems.
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A.
Produces antibodies
B.
Stores glycogen
C.
Converts stimulus energy into an electrical signal
D.
Digests proteins
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Correct Answer: C. Converts stimulus energy into an electrical signal
Explanation:
Receptors act as biological transducers.
They convert physical or chemical stimuli into nerve signals.
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A.
Not perfectly elastic
B.
Perfectly inelastic
C.
No collision occurred
D.
Perfectly elastic
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Correct Answer: D. Perfectly elastic
Explanation:
For a perfectly elastic one-dimensional collision, relative speed of approach equals relative speed of separation.
The comparison determines the classification.
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A.
Please bring: three items a pen, a notebook, and an identity card.
B.
Please: bring three items, a pen, a notebook, and an identity card.
C.
Please bring three: items a pen, a notebook, and an identity card.
D.
Please bring three items: a pen, a notebook, and an identity card.
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Correct Answer: D. Please bring three items: a pen, a notebook, and an identity card.
Explanation:
A colon can introduce a list after a complete independent clause.
The words before the colon form a complete statement.
Choose an option to check your answer.
A.
The price reduction certainly caused the increase.
B.
Profits also increased.
C.
Competitors raised their prices.
D.
Sales rose after the price reduction.
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Correct Answer: D. Sales rose after the price reduction.
Explanation:
The statement establishes timing but not definite causation or profitability.
Only the rise following the reduction is certain.