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Biology MCQs

128 Questions Subject Test
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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
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41
Hard css fpsc Uploaded: 14 Jul 2026

What is the scientific study of fungi called?

  • A Bacteriology
  • B Virology
  • C Mycology
  • D Botany
42
Medium css fpsc ppsc Uploaded: 14 Jul 2026

What is the term for a permanent change in the DNA sequence of an organism?

  • A Mutation
  • B Adaptation
  • C Variation
  • D Allele
43
Medium css fpsc ppsc Uploaded: 14 Jul 2026

What is the term for the physical appearance or observable characteristics of an organism?

  • A Genome
  • B Genotype
  • C Karyotype
  • D Phenotype
44
Medium css fpsc ppsc Uploaded: 05 Aug 2026

Which layer of the skin contains melanocytes that produce the pigment responsible for skin colour?

  • A Dermis
  • B Hypodermis
  • C Stratum corneum
  • D Epidermis
45
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which disease is caused by the deficiency of Vitamin B1 affecting the nervous and cardiovascular systems?

  • A Beriberi
  • B Scurvy
  • C Pellagra
  • D Rickets
46
Medium fpsc Uploaded: 06 Aug 2026

What is the process by which a caterpillar transforms into a butterfly called?

  • A Metamorphosis
  • B Germination
  • C Fertilization
  • D Pollination
47
Medium css fpsc ppsc Uploaded: 14 Jul 2026

What is the term for the gradual process of change in the species composition of an ecosystem over time?

  • A Evolution
  • B Adaptation
  • C Migration
  • D Ecological succession
48
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for organisms that cannot make their own food and must consume other organisms?

  • A Autotrophs
  • B Heterotrophs
  • C Producers
  • D Chemotrophs
49
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for the sequence of feeding relationships in an ecosystem?

  • A Pyramid of numbers
  • B Ecological niche
  • C Trophic level
  • D Food chain
50
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the process by which cells divide to produce two identical daughter cells?

  • A Meiosis
  • B Binary fission
  • C Mitosis
  • D Budding
51
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the role of enzymes in biological reactions?

  • A Act as biological catalysts to speed up reactions
  • B Store genetic information
  • C Provide energy for reactions
  • D Transport oxygen in blood
52
Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which type of immunity is present from birth and provides a non-specific first line of defence?

  • A Acquired immunity
  • B Active immunity
  • C Passive immunity
  • D Innate immunity
53
Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which molecule is the primary energy currency of cells?

  • A ATP
  • B ADP
  • C NAD
  • D NADP
54
Medium fpsc ppsc nts Uploaded: 05 Aug 2026

Which part of the eye is the coloured ring that controls pupil size regulating light entry?

  • A Cornea
  • B Retina
  • C Iris
  • D Lens
55
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for the process by which plants lose water vapour through their leaves?

  • A Photosynthesis
  • B Osmosis
  • C Transpiration
  • D Respiration
56
Easy fpsc Uploaded: 06 Aug 2026

Which human chromosome pair determines biological sex?

  • A 1st pair
  • B 23rd pair
  • C 10th pair
  • D 22nd pair
57
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which scientist developed the modern system of classification for organisms?

  • A Carl Linnaeus
  • B Charles Darwin
  • C Gregor Mendel
  • D Louis Pasteur
58
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which gland is called the master gland of the endocrine system?

  • A Thyroid gland
  • B Pituitary gland
  • C Adrenal gland
  • D Pancreas
59
Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which molecule carries genetic information from DNA to ribosomes for protein synthesis?

  • A mRNA
  • B tRNA
  • C rRNA
  • D snRNA
60
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which pigment in plants absorbs sunlight for photosynthesis?

  • A Chlorophyll
  • B Melanin
  • C Haemoglobin
  • D Keratin
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