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Biology MCQs

210 Questions Subject Test
Subject Preparation Guide

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Build a clear understanding of living organisms, cells, genetics, human systems and the environment through carefully selected practice questions.

Cell BiologyHuman PhysiologyGeneticsEcology
Useful for academic exams, entry tests, FPSC, PPSC and general science preparation.
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Easy fpsc Uploaded: 06 Aug 2026

What is the term for organisms that live inside or on another organism and cause it harm?

  • A Parasites
  • B Predators
  • C Symbionts
  • D Scavengers
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Easy fpsc Uploaded: 06 Aug 2026

Which kingdom includes organisms like mushrooms and yeast?

  • A Plantae
  • B Fungi
  • C Animalia
  • D Protista
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Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which process copies DNA information into mRNA in the nucleus?

  • A Translation
  • B Replication
  • C Transduction
  • D Transcription
24
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the process by which organisms break down glucose to release energy?

  • A Digestion
  • B Photosynthesis
  • C Cellular respiration
  • D Transpiration
25
Easy ppsc Uploaded: 06 Aug 2026

Which stage of mitosis involves chromosomes aligning at the cell's equator?

  • A Prophase
  • B Metaphase
  • C Anaphase
  • D Telophase
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Hard css fpsc Uploaded: 05 Aug 2026

Which organelle within the nucleus is responsible for producing ribosomal RNA?

  • A Centrosome
  • B Nucleolus
  • C Centriole
  • D Golgi body
27
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which gas is released by plants as a byproduct of photosynthesis?

  • A Carbon dioxide
  • B Nitrogen
  • C Oxygen
  • D Water vapour
28
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the deficiency disease caused by lack of Vitamin D in children?

  • A Scurvy
  • B Rickets
  • C Beriberi
  • D Pellagra
29
Medium ppsc Uploaded: 06 Aug 2026

What is the term for the specialized cells that transmit electrical impulses in the nervous system?

  • A Muscle cells
  • B Epithelial cells
  • C Blood cells
  • D Neurons
30
Easy pms Uploaded: 06 Aug 2026

What is the term for the smallest unit of heredity that determines a trait?

  • A Chromosome
  • B Allele
  • C Genome
  • D Gene
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Medium css fpsc ppsc Uploaded: 14 Jul 2026

What is the term for the variety of different species present in a given habitat?

  • A Genetic diversity
  • B Species diversity
  • C Ecosystem diversity
  • D Biodiversity
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Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which type of reproduction involves only one parent and produces genetically identical offspring?

  • A Sexual reproduction
  • B Budding only
  • C Cross-pollination
  • D Asexual reproduction
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Medium css Uploaded: 06 Aug 2026

What is the term for a substance that speeds up chemical reactions in living organisms?

  • A Enzyme
  • B Hormone
  • C Vitamin
  • D Antibody
34
Easy nts Uploaded: 06 Aug 2026

What is the process by which plants lose water through leaves called?

  • A Transpiration
  • B Respiration
  • C Photosynthesis
  • D Osmosis
35
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for the growth of plant roots downward in response to gravity?

  • A Phototropism
  • B Geotropism
  • C Hydrotropism
  • D Thigmotropism
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Hard css Uploaded: 06 Aug 2026

Which organ system includes the lungs and is responsible for gas exchange?

  • A Respiratory system
  • B Circulatory system
  • C Digestive system
  • D Nervous system
37
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the basic structural and functional unit of all living organisms?

  • A Tissue
  • B Organ
  • C Nucleus
  • D Cell
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Hard nts Uploaded: 06 Aug 2026

Which muscle type is found in the walls of internal organs and is involuntary?

  • A Smooth muscle
  • B Skeletal muscle
  • C Cardiac muscle
  • D Striated muscle
39
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which type of disease is caused by a deficiency of essential nutrients in the diet?

  • A Communicable disease
  • B Hereditary disease
  • C Autoimmune disease
  • D Deficiency disease
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Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for the symbiotic relationship where one organism benefits and the other is harmed?

  • A Mutualism
  • B Commensalism
  • C Amensalism
  • D Parasitism
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