Welcome to your Life Processes MCQs Mock Test of 10th Class Science
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1. In which of the following groups of organisms, food material is broken down outside the body and absorbed ?
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2. Which is the correct sequence of parts in human alimentary canal ?
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3. Which is the correct sequence of air passage during inhalation?
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4. During respiration exchange of gases take place in :
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5. In which of the following vertebrate groups, heart does not pump oxygenated blood to different parts of the body?
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6. Which of the following has the longest small intestine?
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7. The organism having parasitic mode of nutrition is
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8. One of the following organisms has a saprophytic mode of nutrition. This organism is
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9. The length of small intestine in a human adult is about
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10. The process of digestion in humans is completed in
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11. In human digestive system, bile is secreted by
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12. Two of the following organisms have a holozoic mode of nutrition. These organisms are
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13. The autotrophic mode of nutrition requires
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14. Where are proteins first digested in the alimentary canal?
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15. Pancreatic juice contains enzymes which digest
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16. Which part of alimentary canal receives bile from the liver?
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17. Which of the following component of our food is digested by an enzyme which is present in saliva as well as in pancreatic juice?
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18. Which of the following are the correct functions of two components of pancreatic juice trypsin and lipase?
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19. The oxygen liberated during photosynthesis by green plants comes from
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20. Which of the following is an incorrect statement?
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21. Which of the following events does not occur in photosynthesis?
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22. The opening and closing of the stomatal pores depends upon
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23. Most of the plants absorb nitrogen in one of the following forms. This is
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24. Which of the following is the correct statement?
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25. In one of the following organisms, the gaseous exchange during respiration does not take place through cell membrane/skin. This organism is
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26. Which of the following is not produced during anaerobic respiration in unicellular fungus?
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27. One of the following organisms can live without oxygen of air. This organism is
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28. Which of the following is known as the energy currency of cells in biology?
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29. The two organisms which breathe only through their moist skin are
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30. One of the following animals does not use trachea as the respiratory organs. This animal is
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31. The breathing and respiration in woody stem of a plant takes place through
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32. Lack of oxygen in muscles often leads to cramps in the legs of sprinters. This is due to conversion of pyruvate to
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33. During the deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in
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34. Internal respiration may be defined as the tissue
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35. When air is blown from mouth into a test- tube containing limewater, the limewater turns milky due to the presence of
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36. One of the following organism does not depend on simple diffusion of gases for breathing and respiration. This organism is
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37. During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is
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38. In cockroaches, air enters the body through
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39. Which of the following is most likely to have a much higher breathing rate?
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40. The component of blood which makes chemicals known as antibodies is
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41. An animal in which the oxygenation of blood does not take place in the lungs is
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42. Which of the following carries substances upwards as well as downwards in a plant?
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43. One of the following is not a constituent of blood. This one is
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44. If a patient is put on dialysis, he is most likely suffering from a severe ailment of the
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45. Water absorption through roots can be increased by keeping the potted plants
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46. A blood vessel which carries blood back to the heart is
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47. Blood is pumped from the heat to the entire body by the
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48. What prevents the backflow of blood inside the heart during contraction?
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49. Which of the following is the correct path taken by urine in our body?
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50. In which of the following vertebrate group groups, heart does not pump oxygenated blood to different parts of the body?
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