Biology Mcqs

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Biology Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

 

16. Redness in blood is because of the presence of
(a) Iron in heme pigment
(b) Aluminum in heme pigment
(c) Copper in heme pigment
(d) All of these

 

17. What is Celluloses
(a) Fats
(b) Carbohydrates
(c) Vitamins
(d) Protein

 

18. Age of a tree can be determined by
(a) Counting the number of rings in the stem
(b) Counting the number of leaves
(c) Counting the number of branches
(d) Measuring the size of the tree

 

19. What is the smallest unit of life
(a) Cell
(b) Atom
(c) Virus
(d) a & b

 

20. What is the largest organ of the human body
(a) Liver
(b) Intestines
(c) Stomach
(d) Skin

 

21. Red blood cells (RBC) are also known as
(a) Erythrocytes
(b) Thrombocytes
(c) Leucocytes
(d) None of these

 

22. Interferon is
(a) Tonic
(b) Virus
(c) Carbohydrate
(d) Ore of iron

 

23. The longest bone in the body of human being is
(a) Tibia
(b) Femur
(c) Fibula
(d) Stapes

 

24. What is the most important stimulant in tea leaves
(a) Brucine
(b) Caffeine
(c) Phenylalanine
(d) Theine

 

25. What rays of sunlight are mostly utilized by chlorophyll in photosynthesis
(a) Red
(b) Yellow
(c) Green
(d) Blue

 

26. Which of the following animals does not have nervous system
(a) Leech
(b) Amoeba
(c) Snail
(d) Tapeworm

 

27. A person having AB- group of blood to donate a person having
(a) A- group
(b) B- group
(c) AB- group
(d) 0- group

 

28. The pH of human blood is between
(a) 6.5
(b) 7.4
(c) 8.9
(d) 4.5

 

29. Panda is found in
(a) Nepal
(b) Bhutan
(c) India
(d) China

 

30. Activity of brain is recorded by
(a) ECG
(b) EEG
(c) MET
(d) CT

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