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Biology MCQs

210 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 nts Uploaded: 06 Aug 2026

What is the term for a population of organisms of the same species living in a specific area?

  • A Community
  • B Population
  • C Ecosystem
  • D Biome
42
Medium fpsc Uploaded: 06 Aug 2026

What is the main function of red blood cells?

  • A Fighting infection
  • B Transporting oxygen
  • C Clotting blood
  • D Producing antibodies
43
Medium css fpsc ppsc Uploaded: 14 Jul 2026

What is the term for two identical alleles for a trait in an organism?

  • A Homozygous
  • B Heterozygous
  • C Carrier
  • D Codominant
44
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which blood group is known as the universal recipient?

  • A O negative
  • B AB positive
  • C A positive
  • D B positive
45
Medium ppsc Uploaded: 06 Aug 2026

What is the term for a group of similar cells performing a specific function?

  • A Tissue
  • B Organ
  • C System
  • D Organelle
46
Medium fpsc ppsc nts Uploaded: 05 Aug 2026

Which type of plant reproduction involves new plants growing from cuttings runners or bulbs?

  • A Pollination
  • B Fertilisation
  • C Seed dispersal
  • D Vegetative propagation
47
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the name of the pigment in red blood cells that carries oxygen?

  • A Melanin
  • B Chlorophyll
  • C Haemoglobin
  • D Myoglobin
48
Easy ppsc Uploaded: 06 Aug 2026

Which human body system removes metabolic waste products from the blood?

  • A Digestive system
  • B Respiratory system
  • C Excretory system
  • D Muscular system
49
Easy pms Uploaded: 06 Aug 2026

Which organ produces insulin to regulate blood sugar levels?

  • A Liver
  • B Kidney
  • C Pancreas
  • D Spleen
50
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the scientific name for the study of classification of organisms?

  • A Morphology
  • B Ecology
  • C Taxonomy
  • D Physiology
51
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which part of the brain controls vital involuntary functions such as breathing heart rate and blood pressure?

  • A Cerebrum
  • B Cerebellum
  • C Thalamus
  • D Medulla oblongata
52
Easy css Uploaded: 06 Aug 2026

Which structure connects muscles to bones in the human body?

  • A Ligament
  • B Tendon
  • C Cartilage
  • D Fascia
53
Medium css Uploaded: 06 Aug 2026

What type of bond holds the two strands of DNA together?

  • A Ionic bond
  • B Covalent bond
  • C Hydrogen bond
  • D Metallic bond
54
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for all the populations of different species living and interacting in the same area?

  • A Community
  • B Population
  • C Biosphere
  • D Ecosystem
55
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Who discovered the double helix structure of DNA?

  • A Charles Darwin and Gregor Mendel
  • B Robert Hooke and Anton van Leeuwenhoek
  • C James Watson and Francis Crick
  • D Louis Pasteur and Robert Koch
56
Hard nts Uploaded: 06 Aug 2026

What is the term for an organism's observable physical characteristics?

  • A Genotype
  • B Karyotype
  • C Phenotype
  • D Chromatype
57
Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which type of RNA brings amino acids to the ribosome during protein synthesis?

  • A mRNA
  • B rRNA
  • C tRNA
  • D snRNA
58
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for a substance that triggers an immune response in the body?

  • A Antibody
  • B Enzyme
  • C Antigen
  • D Hormone
59
Medium nts Uploaded: 06 Aug 2026

Which process allows gases to move in and out of cells without using energy?

  • A Active transport
  • B Diffusion
  • C Endocytosis
  • D Exocytosis
60
Hard fpsc Uploaded: 06 Aug 2026

Which human body system includes the brain, spinal cord, and nerves?

  • A Circulatory system
  • B Nervous system
  • C Digestive system
  • D Respiratory system
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