MCQ Collection
Pakistan MCQs
Practice Pakistan questions with answers and explanations.
Choose an option to check your answer.
A.
Formation of a bond by removing water
B.
Removal of carbon dioxide
C.
Breaking a bond by adding water
D.
Oxidation of glucose only
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Correct Answer: C. Breaking a bond by adding water
Explanation:
Hydrolysis separates polymers into smaller units.
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A.
Store genetic information only
B.
Catalyze every reaction
C.
Form cell membranes only
D.
Provide energy and structural support
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Correct Answer: D. Provide energy and structural support
Explanation:
Carbohydrates include sugars, starches, glycogen, and cellulose.
Choose an option to check your answer.
A.
Provide energy and structural support
B.
Store genetic information only
C.
Catalyze every reaction
D.
Form cell membranes only
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Correct Answer: A. Provide energy and structural support
Explanation:
Carbohydrates include sugars, starches, glycogen, and cellulose.
Choose an option to check your answer.
A.
Store genetic information only
B.
Provide energy and structural support
C.
Catalyze every reaction
D.
Form cell membranes only
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Correct Answer: B. Provide energy and structural support
Explanation:
Carbohydrates include sugars, starches, glycogen, and cellulose.
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A.
Plant and animal cells
B.
Fungal and animal cells
C.
Bacterial and archaeal cells
D.
Only plant cells
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Correct Answer: C. Bacterial and archaeal cells
Explanation:
Prokaryotes lack a membrane-bound nucleus.
Choose an option to check your answer.
A.
Small cells contain no DNA
B.
Large cells cannot make proteins
C.
A high surface-area-to-volume ratio supports efficient exchange
D.
Cell membranes function only below one micrometer
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Correct Answer: C. A high surface-area-to-volume ratio supports efficient exchange
Explanation:
As a cell grows, volume increases faster than surface area.
Choose an option to check your answer.
A.
Plant and animal cells
B.
Fungal and animal cells
C.
Only plant cells
D.
Bacterial and archaeal cells
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Correct Answer: D. Bacterial and archaeal cells
Explanation:
Prokaryotes lack a membrane-bound nucleus.
Choose an option to check your answer.
A.
Vitamins, minerals, water, and salts
B.
Atoms, ions, tissues, and organs
C.
Sugars, acids, bases, and gases
D.
Carbohydrates, lipids, proteins, and nucleic acids
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Correct Answer: D. Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
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A.
Membrane-bound nucleus
B.
Presence of DNA
C.
Presence of ribosomes
D.
Presence of a plasma membrane
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Correct Answer: A. Membrane-bound nucleus
Explanation:
Both cell types have DNA, ribosomes, and membranes.
Choose an option to check your answer.
A.
Carbohydrates, lipids, proteins, and nucleic acids
B.
Vitamins, minerals, water, and salts
C.
Atoms, ions, tissues, and organs
D.
Sugars, acids, bases, and gases
Show Answer
Correct Answer: A. Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
Choose an option to check your answer.
A.
Presence of DNA
B.
Membrane-bound nucleus
C.
Presence of ribosomes
D.
Presence of a plasma membrane
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Correct Answer: B. Membrane-bound nucleus
Explanation:
Both cell types have DNA, ribosomes, and membranes.
Choose an option to check your answer.
A.
Vitamins, minerals, water, and salts
B.
Carbohydrates, lipids, proteins, and nucleic acids
C.
Atoms, ions, tissues, and organs
D.
Sugars, acids, bases, and gases
Show Answer
Correct Answer: B. Carbohydrates, lipids, proteins, and nucleic acids
Explanation:
The four major macromolecule groups perform structural, energetic, catalytic, and informational roles.
