100 One Word Biology GK Questions and Answers | General Biology GK for Competitive Exams

biology gk

Fathers & Scientists


Discoveries & Discoverers

  1. Cell discovered by – Robert Hooke
  2. Nucleus discovered by – Robert Brown
  3. Ribosome discovered by – Palade
  4. Mitochondria discovered by – Altmann
  5. Golgi body discovered by – Camillo Golgi
  6. Chloroplast discovered by – Schimper
  7. Blood circulation discovered by – William Harvey
  8. Blood group discovered by – Karl Landsteiner
  9. Penicillin discovered by – Alexander Fleming
  10. Insulin discovered by – Banting & Best
  11. X-ray discovered by – Roentgen
  12. Photosynthesis discovered by – Jan Ingenhousz
  13. Vitamin discovered by – Funk
  14. Malaria parasite discovered by – Laveran
  15. Plasmodium life cycle explained by – Ronald Ross
  16. Pasteurization discovered by – Louis Pasteur
  17. Germ theory of disease – Louis Pasteur
  18. RNA discovered by – Severo Ochoa
  19. AIDS virus discovered by – Luc Montagnier
  20. Double helix model – Watson & Crick

Important Terms (One Word)

  1. Powerhouse of cell – Mitochondria
  2. Kitchen of cell – Chloroplast
  3. Brain of cell – Nucleus
  4. Suicide bag of cell – Lysosome
  5. Protein factory – Ribosome
  6. Universal solvent – Water
  7. Universal blood donor – O negative
  8. Universal blood acceptor – AB positive
  9. Respiratory pigment in humans – Hemoglobin
  10. Respiratory pigment in arthropods – Hemocyanin
  11. Structural unit of kidney – Nephron
  12. Structural unit of liver – Lobule
  13. Structural unit of brain – Neuron
  14. Structural unit of life – Cell
  15. Largest cell – Ostrich egg
  16. Smallest cell – Mycoplasma
  17. Longest cell – Neuron
  18. Largest gland – Liver
  19. Largest endocrine gland – Thyroid
  20. Largest bone – Femur
  21. Smallest bone – Stapes
  22. Strongest bone – Femur
  23. Hardest substance in body – Enamel
  24. Largest organ – Skin
  25. Smallest muscle – Stapedius

Biology in Plants

  1. Plant hormone for growth – Auxin
  2. Plant hormone for ripening – Ethylene
  3. Plant hormone for dormancy – ABA
  4. Plant hormone for cell division – Cytokinin
  5. Photosynthesis pigment – Chlorophyll
  6. Transpiration occurs by – Stomata
  7. C4 cycle discovered by – Hatch & Slack
  8. Transport tissue in plants – Xylem
  9. Food transport tissue – Phloem
  10. Symbiosis between algae & fungi – Lichen

Human Body & Health

  1. Human body cell chromosome number – 46
  2. Male gamete – Sperm
  3. Female gamete – Ovum
  4. Fertilized egg – Zygote
  5. Blood clotting vitamin – Vitamin K
  6. Night blindness vitamin – Vitamin A
  7. Rickets deficiency – Vitamin D
  8. Scurvy deficiency – Vitamin C
  9. Beriberi deficiency – Vitamin B1
  10. Pellagra deficiency – Vitamin B3
  11. Goitre deficiency – Iodine
  12. Haemophilia – Genetic
  13. Diabetes – Insulin deficiency
  14. Colour blindness – Genetic
  15. AIDS virus – HIV
  16. Covid-19 virus – Coronavirus
  17. TB bacteria – Mycobacterium
  18. Typhoid bacteria – Salmonella
  19. Cholera bacteria – Vibrio cholerae
  20. Syphilis bacteria – Treponema

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