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Biology MCQs

124 Questions Subject Test
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Cell BiologyHuman PhysiologyGeneticsEcology
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81
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for all the organisms of the same species living in the same area at the same time?

  • A Community
  • B Ecosystem
  • C Population
  • D Biome
82
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the full form of DNA?

  • A Deoxyribose Nucleic Acid
  • B Di-nitrogen Acid
  • C Dinucleic Acid
  • D Deoxyribonucleic Acid
83
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What happens to enzyme activity when temperature rises significantly above its optimum?

  • A Activity slows gradually then speeds up
  • B Activity remains constant
  • C Enzyme is denatured and loses activity
  • D Enzyme replicates to compensate
84
Hard css fpsc ppsc Uploaded: 14 Jul 2026

Which type of white blood cell produces antibodies against specific pathogens?

  • A Neutrophils
  • B B lymphocytes
  • C Monocytes
  • D Eosinophils
85
Hard ppsc Uploaded: 06 Aug 2026

What is the primary greenhouse gas released during respiration?

  • A Oxygen
  • B Nitrogen
  • C Methane
  • D Carbon dioxide
86
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the site of protein synthesis in a cell?

  • A Ribosome
  • B Nucleus
  • C Mitochondria
  • D Golgi apparatus
87
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

Which vitamin is essential for the clotting of blood?

  • A Vitamin A
  • B Vitamin C
  • C Vitamin E
  • D Vitamin K
88
Hard css fpsc ppsc Uploaded: 05 Aug 2026

Which type of white blood cell produces specific antibodies against antigens?

  • A Neutrophils
  • B B lymphocytes
  • C Monocytes
  • D Cytotoxic T cells
89
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for the movement of substances from high concentration to low concentration without energy?

  • A Active transport
  • B Osmosis
  • C Endocytosis
  • D Diffusion
90
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

How many kingdoms are in the traditional five-kingdom system of classification?

  • A Three
  • B Five
  • C Four
  • D Six
91
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which disease results from the inability to produce or use insulin effectively?

  • A Diabetes mellitus
  • B Hypertension
  • C Anaemia
  • D Asthma
92
Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which process converts mRNA information into a protein sequence at ribosomes?

  • A Transcription
  • B Translation
  • C Replication
  • D Transduction
93
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which scientist is known as the Father of Genetics?

  • A Charles Darwin
  • B Gregor Mendel
  • C Louis Pasteur
  • D Aristotle
94
Hard css fpsc ppsc Uploaded: 05 Aug 2026

Which process converts excess amino acids into urea in the liver for kidney excretion?

  • A Deamination
  • B Denaturation
  • C Gluconeogenesis
  • D Glycolysis
95
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which gas is released by organisms as a byproduct of cellular respiration?

  • A Carbon dioxide
  • B Oxygen
  • C Nitrogen
  • D Hydrogen
96
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the deficiency disease caused by lack of Vitamin C?

  • A Beriberi
  • B Pellagra
  • C Scurvy
  • D Rickets
97
Medium ppsc Uploaded: 06 Aug 2026

Which blood type is considered the universal donor?

  • A A
  • B O negative
  • C B
  • D AB
98
Medium fpsc ppsc nts Uploaded: 14 Jul 2026

What is the term for organisms that can make their own food through photosynthesis?

  • A Decomposers
  • B Consumers
  • C Heterotrophs
  • D Autotrophs
99
Medium css fpsc ppsc Uploaded: 14 Jul 2026

Which type of nutrition involves organisms that feed on dead and decaying organic matter?

  • A Saprotrophic
  • B Autotrophic
  • C Holozoic
  • D Parasitic
100
Easy fpsc ppsc nts Uploaded: 14 Jul 2026

Which organelle is known as the powerhouse of the cell?

  • A Nucleus
  • B Ribosome
  • C Mitochondria
  • D Golgi apparatus
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