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Biology MCQs

Practice Biology multiple-choice questions for NASTP Institute of Information Technology competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.

Nucleus
Ribosome
Mitochondrion
Golgi apparatus
ErklärungMitochondria are the site of cellular respiration, producing ATP, which provides energy for the cell.
Energy storage
Catalyzing chemical reactions
Storing genetic information
Building cell walls
ErklärungDNA contains the instructions needed for an organism to develop, survive, and reproduce.
Respiration
Photosynthesis
Fermentation
Transpiration
ErklärungPhotosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from CO2 and water.
Atom
Organ
Cell
Tissue
ErklärungThe cell is universally accepted as the fundamental unit of life.
Stomach
Large Intestine
Small Intestine
Liver
ErklärungThe small intestine is the primary site for the absorption of nutrients into the bloodstream.
DNA only
RNA only
Both DNA and RNA
Protein only
ErklärungInfluenza is an RNA virus, meaning it stores its genetic information in RNA rather than DNA.
Red Blood Cells
White Blood Cells
Platelets
Plasma
ErklärungLeukocytes (white blood cells) are key components of the immune system.
Nucleus
Ribosome
Golgi Apparatus
Lysosome
ErklärungRibosomes serve as the site of biological protein synthesis (translation).
Fructose
Glucose
Lactose
Sucrose
ErklärungGlucose is the direct product of photosynthesis used by the plant for energy.
Cerebrum
Cerebellum
Brainstem
Thalamus
ErklärungThe cerebellum is responsible for maintaining posture, balance, and voluntary muscle coordination.
Adenine
Guanine
Cytosine
Uracil
ErklärungRNA uses Uracil to pair with Adenine, whereas DNA uses Thymine.
Pinocytosis
Phagocytosis
Exocytosis
Diffusion
ErklärungPhagocytosis is the process of engulfing solid particles, often described as cell eating.
Protein synthesis
ATP production
Modifying and packaging proteins
DNA replication
ErklärungThe Golgi apparatus acts like a post office, processing, sorting, and packaging proteins for secretion.

Frequently Asked Questions

Are these Biology MCQs free?

Yes. Every Biology MCQ on this page is free to practice, including the correct answer and explanation.

Do these include past-paper questions?

Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.

Which exams do these Biology MCQs help with?

They are aimed at NASTP Institute of Information Technology and related Pakistani competitive exams that test Biology.

How should I practice subject-wise MCQs?

Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.

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