Biology MCQs

11. ‘Pace-maker’ is associated with which of the following body organs?
[A] Liver
[B] Brain
[C] Heart
[D] Lungs

Show Answer

12. Which one of the following is a membrane that protects the developing embryo from desiccation? (UPSC Prelims 1995)
[A] Amnion
[B] Allantois
[C] Chorion
[D] Yolk sac

Show Answer

13. A person with ‘AB’ blood group is sometimes called a universal recipient because of the? (UPSC Prelims 1995)
[A] lack of antigen in his blood
[B] lack of antibodies in his blood
[C] lack of both antigens and antibodies in his blood
[D] presence of antibodies in his blood

Show Answer

14. Who is called the father of Immunology?
[A] Gregor Mendel
[B] Edward Jenner
[C] Francis Galton
[D] Hugo de Vries

Show Answer

15. Phototropism Theory is related to which of the following scientist?
[A] Jane Goodall
[B] Charles Darwin
[C] Francis Galton
[D] None of these

Show Answer

16. Who introduced the three kingdoms of classification?
[A] RH Whittaker
[B] Ernest Haeckel
[C] Copeland
[D] Carolus Linnaeus

Show Answer

17. Where are glycolipids located in the plasma membrane?
[A] Inner leaflet of the plasma membrane
[B] The outer leaflet of the plasma membrane
[C] evenly distributed in inner and outer leaflets
[D] It varies by cell type

Show Answer

18. Which of the following can affect proteins and nucleic acids, but not viruses?
[A] Denaturation
[B] Enzyme treatment
[C] Pressure
[D] All of these

Show Answer

19. Which bacteria are used in production of biogas/gobar gas plants?
[A] Methanogens
[B] Ethanogens
[C] Propanogens

[D] N-butane

Show Answer

20. Algae cell wall is made up of which of the following?
[A] Chitin
[B] Cutin
[C] Cellulose
[D] Suberin

Show Answer