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Biology Questions for Competitive Exams

Dear readers, following are some important biology questions for competitive exams like SSC, CTET, UPTET etc. Practice them for your preparations.

Q 1. Who discovered bacteria?

  1. Robert Hook
  2. Robert Brown
  3. Robert Koch
  4. Anton van Leeuwenhoek

Q 2. The branch of biology dealing with the study of cells is known as ?

  1. Cytology
  2. Histology
  3. Psychology
  4. Physiology

Q 3. The basic structural and functional unit of living organisms is

  1. Cell
  2. Tissue
  3. Organ
  4. systems

Q 4. Which among the following is the smallest living cell?

  1. Virus
  2. Yeast
  3. Bacterium
  4. Mycoplasma

Q 5. Which  one of the following is called as the digestive bag in the cell

  1. Lysosome
  2. Mitochondria
  3. Ribosome
  4. Golgi body

Read – विलोम शब्द Vilom Shabd for Competitive Exams

Q 6. A warm blooded animal is?

  1. Snake
  2. Bat
  3. shark
  4. ascorbic

Q 7. Maximum number of ribs are present in

  1. Whale
  2. Rabbit
  3. Snake
  4. cockroach

Q 8. Which of the following has no skeleton at all?

  1. Star Fish
  2. Sponge
  3. Silver Fish
  4. Jelly Fish

Q 9. Cellulose  is the chief constituent of

  1. Cell wall
  2. Cell Membrane
  3. Body wall of insects
  4. Secondary wall of Xylem

Q 10. The element which is the most abundant in the human body is

  1. Oxygen
  2. Carbon
  3. Iron
  4. Nitrogen

Q 11. The enzyme that is present in the saliva of man is

  1. Pepsin
  2. Rennin
  3. Amylase
  4. Trypsin

Q 12. Iodine solution is used to test the presence of

  1. Sugar
  2. Fats
  3. Protein
  4. Starch

Q 13. Which one of the following elements is associated with  teeth disorder?

  1. Chlorine
  2. Fluorine
  3. Bromine
  4. Iodine

Read – पर्यायवाची शब्द – Paryayvachi Shabd for Competitive Exams

Q 14. The study of Visceral organs is

  1. Angiology
  2. Arthrology
  3. Anthrology
  4. Splanchnology

Q 15. Normal fasting blood sugar level per100 mL of blood in man is

  1. 30-50 mg
  2. 50-70 mg
  3. 80-100 mg
  4. 120-140 mg

Q 16. The longest bone in the human body is

  1. Femur
  2. Tibia
  3. Humerus
  4. Ulna

Q 17. Which of the following is correlated with blood pressure?

  1. Liver
  2. Testis
  3. Pancreas
  4. Adrenal

Q 18. The medical term used for the sleeplessness

  1. Insomnia
  2. Somnambulism
  3. Hallicunation
  4. Nyctinuria

Q 19. Pituitary gland is situated in at the

  1. base of the heart
  2. base of the brain
  3. neck
  4. abdomen

Q 20. The study of extinct animals is called

  1. Herpetology
  2. Ornithology
  3. Geology
  4. Palaeontology

Q 21. Study of fossils is called

  1. Autecology
  2. Entomology
  3. Palaeontology
  4. Anthropology

Q 22. The viral disease is

  1. Amoebiasis
  2. Smallpox
  3. Malaria
  4. diptheria

Q 23. The pair of diseases caused by virus is

  1. Rabies and mumps
  2. Typhoid and tetanus
  3. AIDS and syphills
  4. Cholera and tuberculosis

Q 24. One of these is not a viral disease

  1. Leprosy
  2. Polio
  3. Chickenpox
  4. rabies

Q 25. Vaccine for tuberculosis is

  1. PAS Vaccine
  2. OPV
  3. DPT
  4. BCG Vaccine

Q 26. Ringworm is a …….. disease

  1. Viral
  2. Protozoan
  3. Fungal
  4. Bacteria

Q 27. Which of the following diseases usually spread through milk

  1. Cholera
  2. Diphtheria
  3. Jaundice
  4. Tuberculosis

Q 28. Which was the first antibiotic?

  1. Terramycin
  2. Neomycin
  3. Penicillin
  4. streptomycin

Q 29. Widal test is carried out  to test

  1. Malaria
  2. HIV/AIDS
  3. Diabetes mellitus
  4. Typhoid fever

Q 30. Which of the following functions is performed by the kidneys in the human body

  1. Excretion
  2. Respiration
  3. Digestion
  4. transportation

Q 31. Which of the following  carries oxygen to various parts of human body?

  1. White blood cells
  2. Red blood cells
  3. Plasma
  4. nerves

Q 32. Which vitamin is obtained from sun-rays

  1. Vitamin A
  2. Vitamin C
  3. Vitamin D
  4. Vitamin K

Q 33. Polio is caused by

  1. Bacteria
  2. Virus
  3. Protozoan
  4. Fungus

Q 34. Which of the digestive organs  contain acid?

  1. Stomach
  2. Small intestine
  3. Appendix
  4. Colon

Q 35. Molybdenum deficiency affects the activity of

  1. Nitrogenase
  2. Nitrate reductase
  3. Chlorate reductase
  4. All of the above

Q 36. AIDS virus destroys

  1. Monocytes
  2. Neutrophils
  3. Basophils
  4. Lymphocytes

Q 37. Antibodies are mainly  synthesized from

  1. Megakaryocyte
  2. Monocyte
  3. Lymphocyte
  4. histicoyte

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