1. Lack of oxygen in muscles often leads to cramps among cricketers. This result due to 

A. Conversion of pyruvate to ethanol. 

B. Conversion of pyruvate to glucose.

C. Conversion of pyruvate to lactic acid.

2. Choose the correct pathway of urine in our body 

A. Kidney--->ureter--->urethra--->urinary bladder.

B. Kidney ---> urinary bladder---> urethra----> ureter .

C. Kidney--->ureters--->urinary bladder---> urethra.

3. The internal (cellular) energy reserve  autotrophs is 

A. Glycogen B. Protein C. Starch.

4. The filtration unit of kidney are called 

A. Ureter B. Neuron C. Nephron.

5. Oxygen liberated during photosynthesis is comes from 

A. Water B. Chlorophyll C. Carbon dioxide.

6. The blood leaving the tissue becomes richer in 

A. Carbon dioxide B. Water C. Haemoglobin.

7. Choose the event that does not occur in photosynthesis 

A. Absorption of light energy by chlorophyll.

B. Reduction of carbon dioxide to carbohydrates.

C. Oxidation of carbon to carbon dioxide.

8. Which is the first enzyme with speed food in digestive tract 

A. Pepsin B. Cellulose C. Amylase.

9. What prevents backflow of blood inside the heart during contraction 

A. Valves in heart B. Thin walls of artria C. Both a and b.

10. Which part of alimentary canal receives bile from the liver 

A. Stomach B. Small intestine C. Large intestine.

11. Which of the following is most appropriate for aerobic respiration

A. Glucose --(mitochondria)-->pyruvic acid-- (cytoplasm)-->carbon dioxide+water+energy.

B. Glucose --(cytoplasm)-->pyruvic acid-- (mitochondria)-->carbon dioxide+water+ energy.

C. Glucose --(cytoplasm)-->pyruvic acid+ energy --(mitochondria)-->carbon dioxide+ water.

12. Opening and closing of the stomatal pores depends upon

A. Oxygen B. Temperature C. Water in guard cell.

13. Normal blood pressure (systolic/diastolic) is 

A. 120/80 mm of Hg B. 160/80 mm of Hg 

C. 120/60 mm of Hg.

14. Large intestine in man mainly carries out

A. Absorption B. Assimilation C. Digestion of fats.

15. A gland not associated with the alimentary canal is 

A. Liver 2. Pancreas 3. Adrenal.

16. During respiration exchange of gases takes place in

A. Tracheae and larynx B. Alveoli of lungs C. Alveoli and throat.

17. Blood from superior Vena cava flows into 

A. Right atrium B. Right ventricle C. Left atrium.

18. Arteries and veins are connected by a network of extremely narrow tubes called

A. Sieve tubes B. Capillaries C. Vena cava.

19. Mode of nutrition found in fungi is

A. Parasitic nutrition B. Holozoic nutrition 

C. Saprotrophic nutrition.

20. Which of these juices is secreted by pancreas 

A. Trypsin B. Pepsin C. Both a and b.

21. In a closed circulatory system, blood is completely enclosed within 

A. Vessels B. Heart C. Skeleton.

22. Proteins after digestion are converted into 

A. Carbohydrates B. Small globules C. Amino acids.

23. Bile juice is secreted by 

A. Stomach B. Pancreas C. Liver.

24. Lipase acts on 

A. Amino acids B. Fats C. Carbohydrates.

25. Which of the following options describe the characteristics of a living being

A. Nutrition B. Respiration C. Both a and b.

26. The final product of glycolysis is

A. Pyruvate B. A.T.P  C. Lactic acid.

27. The common stage between aerobic and anaerobic respiration is called

A. Glycolysis B. Oxidation C. Photosynthesis.

28. Gaseous exchange in plants takes through the 

A. Stomata B. Gills C. Lungs.

29. Which of the following blood vessels have thick,  elastic walls 

A. Veins B. Capillaries C. Arteries.

30. Uraemia is a condition in a nephron is 

A. A large amount of water is lost in urine.

B. Increase in urea concentration in blood.

C. None of the above.

31. The network of capillaries in a nephron is 

A. The Malpighian corpuscle B. Bowman's capsule C. The Glomerulus.

32. In the Glomerulus of a kidney,

A. The afferent glomerular capillaries  are wider than the efferent glomerular capillaries.

B. The afferent glomerular arteriole is wider than the efferent glomerular arteriole.

C. None of the above.

33. Parasite depends on 

A. Plants B. Host for food C. Sunlight.

34. Substances that help to break down the food to release energy 

A. Chlorophyll B. Enzyme C. Water.

35. Hcl is produced in 

A. Intestine B. Liver C. Stomach.

36. Villi helps to 

A. Digest food B. Eat food C. Absorb food.

37. Sound box in your body is also called 

A. Larynx B. Pharynx C. Trachea.

38. Air from lungs goes to

A. Blood B. Body C. Cells.

39. The surface area of lungs  is increased by

A. Chest B. Ribs C. Air sacs.

40. Two Vena cavae pour the deoxygenated blood 

A. Left atrium B. Right atrium C. Let ventricle.

41. Left ventricle pumps

A. Deoxygenated blood B. Oxygenated blood

C. Both bloods.

42. Glomerulus acts as a 

A. Dialysis bag B. Air sac C. Both a and b.

43. Function of Glomerulus

A. Ultrafiltration B. Excretion of water C. Reabsorption.

44. Largest artery in the human body

A. Aorta B. Pulmonary artery C. Inferior Vena cavae.

45. Common passage for food and air

A. Pharynx B. Small intestine C. Trachea.

46. Factors that influence ascent of sap 

A. Root pressure B. Transpiration pull C. Both a and b.

47.Transport of soluble products of photosynthesis is known as 

A. Translocation B. Transpiration C. Both a and b.

48. Enzyme present in saliva break down starch is

A. Salivary amylase B. Ptyalin C. Both a and b.

49. Breakdown of fats large globules into small globules is 

A. Emulsification B. Digestion of fat C. Both a and b.

50. Digestion of fats take place in our body

A  Small intestine B. Stomach C. Both a and b.


Answer:

1.C 2.C 3.C 4.C 5.A 6.A 7.C 8.C 9.A 10.B 11.B 12.C 13.A 14.A 15.C 16.B 17.A 18.B 19.C 20.A 21.A 22.C 23.C 24.B 25.C 26.A 27.A 28.A 29.C 30.B 31.C 32.B 33.B 34.B 35.C 36.C 37.A 38.A 39.C 40.B 41.B 42.A 43.A 44.A 45.A 46.C 47.A 48.C 49.A 50.A.