MCQ Collection
AKU MBBS MCQs
Practice AKU MBBS questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: C. Ribosomal RNA synthesis and ribosome subunit assembly
Explanation:
The nucleolus is a dense region inside the nucleus.
It produces rRNA and assembles ribosomal subunits.
Choose an option to check your answer.
Correct Answer: D. Ribosome
Explanation:
Ribosomes translate mRNA into polypeptide chains.
They occur freely in cytoplasm or attached to rough ER.
Choose an option to check your answer.
Correct Answer: A. Synthesis and processing of secreted and membrane proteins
Explanation:
Rough ER has ribosomes attached to its surface.
It folds and modifies proteins entering the endomembrane system.
Choose an option to check your answer.
Correct Answer: B. Lipid synthesis and detoxification
Explanation:
Smooth ER lacks ribosomes.
It synthesizes lipids and helps detoxify chemicals.
Choose an option to check your answer.
Correct Answer: C. Modification, sorting, and packaging of proteins and lipids
Explanation:
The Golgi receives materials from the ER.
It modifies and directs them to their destinations.
Choose an option to check your answer.
Correct Answer: D. Lysosome
Explanation:
Lysosomes break down macromolecules and damaged cell parts.
Their enzymes work best in an acidic environment.
Choose an option to check your answer.
Correct Answer: A. Production of ATP through aerobic respiration
Explanation:
Mitochondria convert energy from nutrients into ATP.
They contain their own DNA and ribosomes.
Choose an option to check your answer.
Correct Answer: B. Chloroplast
Explanation:
Chloroplasts contain chlorophyll and photosynthetic membranes.
They convert light energy into chemical energy.
Choose an option to check your answer.
Correct Answer: A. The study of matter, its properties, composition, and changes
Explanation:
Chemistry examines what matter is made of and how it behaves.
It also studies energy changes accompanying chemical processes.
