This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Life Processes > Class 10 Science Chapter 6 Life Processes – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 6 Life Processes Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The main function of the lymph is A) Transport O2 to brain. B) Transport CO2 to lungs. C) Return interstitial fluid to blood. D) Return RBCs and WBCs to lymph vessels. Show Answer Correct Answer: C) Return interstitial fluid to blood. 2. In which mode of nutrition an organism de-rives its food from the body of another living organism without killing it? A) Holozoic nutrition. B) Autotrophic. C) Parasitic nutrition. D) Saprophytic nutrition. Show Answer Correct Answer: C) Parasitic nutrition. 3. Which of the following are not filtered by the nephron? A) Urea. B) Starch. C) Water. D) Sodium and chloride ions. Show Answer Correct Answer: B) Starch. 4. Assertion (A):The oxygenated and deoxygenated blood is separate in the heart of mammals.Reason(R):This allows efficient supply of oxygen to all tissues. A) Both assertion (A) and reason(R)are true and reason(R)is the correct explanation of assertion(A). B) Both assertion (A) and reason(R) are true but reason (R) is not the correct explanation of assertion (A). C) Assertion (A) is true but reason(R) is false. D) Assertion (A) is false but reason (R)is true. Show Answer Correct Answer: A) Both assertion (A) and reason(R)are true and reason(R)is the correct explanation of assertion(A). 5. IN TISSUES OF HUMAN BEINGS, GLUCOSE IS CONVERTED INTO PYRUVIC ACID IN THE A) GOLGI BODY. B) MITOCHONDRIA. C) CYTOPLASM. D) CHLOROPLAST. Show Answer Correct Answer: C) CYTOPLASM. 6. Which of the following is not a digestive enzyme contained in the pancreatic juice?i. Lipaseii. Hydrochloric acidiii. Mucusiv. Trypsin A) (i) and (ii). B) (i) and (iv). C) Ii and iii. D) (i) and (iii). Show Answer Correct Answer: C) Ii and iii. 7. In which group of organisms the food material is broken down outside the body? A) Mushroom, green plants, amoeba. B) Yeast, mushroom, breadmould. C) Paramoecium, Amoeba and Cuscuta. D) Cuscuta, lice and tapeworm. Show Answer Correct Answer: B) Yeast, mushroom, breadmould. 8. What do plants need for the photosynthesis process? A) A camera and tripod. B) Light, carbon dioxide, and water. C) Roots, flowers, and bees. D) Soil, air, and oxygen. Show Answer Correct Answer: B) Light, carbon dioxide, and water. 9. HCl is secreted by ..... A) Pancreas. B) Gastric gland. C) Small intestine. D) Liver. Show Answer Correct Answer: B) Gastric gland. 10. One of the following is not an enzyme of digestive system. A) PEPSIN. B) TRYPSIN. C) Enterogastrone. D) LIPASE. Show Answer Correct Answer: C) Enterogastrone. 11. Oxygen binds to which pigment in RBC A) Chlorophyll. B) Haemoglobin. C) Leucocytes. D) None. Show Answer Correct Answer: B) Haemoglobin. 12. A:Lipase helps in the emulsification of fats.R:Lipase hydrolyses fats and oils. A) Both A and R are true and R is the correct explanation of the A. B) Both A and R are true and R is not the correct explanation of the A. C) A is true but R is false. D) A is false but R is true,. Show Answer Correct Answer: C) A is true but R is false. 13. Respiration rate of any aquatic organism as compared to terrestrial organism? A) Faster. B) Slower. C) No effects; but same like human beings. D) None of these. Show Answer Correct Answer: A) Faster. 14. Which of the following statements about autotrophs is incorrect? A) They synthesise carbohydrates by using carbon dioxide, water in presence of sunlight and chlorophyll. B) They store carbohydrates in form of starch. C) They convert carbon dioxide and water into carbohydrates in the absence of sunlight. D) They form the first trophic level in food chain. Show Answer Correct Answer: C) They convert carbon dioxide and water into carbohydrates in the absence of sunlight. 15. The extracellular fluid released from the capillaries is: A) Plasma. B) Mucus. C) Serum. D) Lymph. Show Answer Correct Answer: D) Lymph. 16. The site of photosynthesis in plant cell is A) Mitochondria. B) Chloroplast. C) Ribosomes. D) Endoplasmic reticulum. Show Answer Correct Answer: B) Chloroplast. 17. What does the left side of the heart do? A) The left side of the heart pumps blood through the lungs where it gets oxygen. SHOW ANSWER. B) The left side of the heart receives the blood containing oxygen and pumps blood to the rest of the body. C) The left side of the heart controls the muscles on the left side of the body,. D) The left side of the heart supplys our arms with blood. Show Answer Correct Answer: B) The left side of the heart receives the blood containing oxygen and pumps blood to the rest of the body. 18. The enzymes contained in pancreatic juices help in the digestion of: A) Fats and carbohydrates. B) Proteins and fats. C) Proteins and carbohydrates. D) Proteins, fats and carbohydrates. Show Answer Correct Answer: D) Proteins, fats and carbohydrates. 19. The human body produces hormones, vitamins, proteins, enzymes, etc. to keep it functioning. A) Regulation. B) Circulation. C) Metabolism. D) Homeostasis. Show Answer Correct Answer: C) Metabolism. 20. Name the tissue responsible for the transportation of sugar and amino acids in plants. A) Xylem. B) Flam. C) Root hairs. D) Stomata. Show Answer Correct Answer: B) Flam. 21. Which of the following help in protecting the inner lining of the stomach from the harmful effect of hydrochloric acid? A) Mucus. B) Trypsin. C) Bile. D) Pepsin. Show Answer Correct Answer: A) Mucus. 22. The pancreatic juice doesn't contain following enzymes A) PTYALIN. B) AMYLASE. C) LIPASE. D) TRYPSIN. Show Answer Correct Answer: A) PTYALIN. 23. The opening and closing of the stomatal pore depends upon A) Temperature. B) Water in guard cells. C) Concentration of CO2 in stomata. D) Oxygen. Show Answer Correct Answer: B) Water in guard cells. 24. Difference between pepsin and trypsin is ..... A) They work on different types of proteins. B) They are secreted by different parts of the body viz. stomach, Pancreas respectively. C) Trypsin do not need acidic environment unlike of pepsin. D) All of the above. Show Answer Correct Answer: D) All of the above. 25. ) Chamber of heart that pumps blood to various organs. A) Artery. B) Vena cava. C) Auricle. D) Ventricles. Show Answer Correct Answer: D) Ventricles. 26. What happens to the unused carbohydrates produced in the plant body? A) Gets broken down and dissipated as heat. B) Transported to stem in the form of glycogen. C) Expelled from plant body through excretion. D) Stored in the form of starch for future use. Show Answer Correct Answer: D) Stored in the form of starch for future use. 27. What are the two gases that animals exchange with their surrounding? A) Oxygen and nitrogent. B) Hydrogen and carbon dioxide. C) Nitrogen and helium. D) Carbon dioxide and oxygen. Show Answer Correct Answer: D) Carbon dioxide and oxygen. 28. Amylase works on A) Protein. B) Lipids. C) Starch. D) None of the above. Show Answer Correct Answer: C) Starch. 29. Nephrons pour their excretory products in ..... A) Kidneys. B) Ureter. C) Uriniferous tubules. D) Collecting tubules. Show Answer Correct Answer: D) Collecting tubules. 30. Which of the following is not necessary for photosynthesis A) Water. B) Chlorophyll. C) Carbon dioxide gas. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 31. Which Part Of Alimentary Canal Receives Bile From The Liver? A) Stomach. B) Oesophagus. C) Large intestine. D) Small intestine. Show Answer Correct Answer: D) Small intestine. 32. How does carbon dioxide get into the leaves of a plant? A) It's absorbed by the roots. B) It's made in a chemical reaction in the stem. C) It goes through the flowers. D) It enters through the stomata. Show Answer Correct Answer: D) It enters through the stomata. 33. The movement of food in phloem is called: A) Evaporation. B) Translocation. C) Transpiration. D) Respiration. Show Answer Correct Answer: B) Translocation. 34. Left side of heart has A) Oxygenated blood. B) Deoxygenated blood. C) All the above. D) None of the above. Show Answer Correct Answer: B) Deoxygenated blood. 35. Saliva in the mouth converts ..... into ..... A) Glycogen, glucose. B) Proteins, amino acids. C) Starch, maltose. D) Fats, vitamins. Show Answer Correct Answer: C) Starch, maltose. 36. When air is blown through lime water it turns milky because of ..... A) Water. B) Calcium Oxide. C) Carbon Dioxide. D) Limestone. Show Answer Correct Answer: C) Carbon Dioxide. 37. The procedure used for cleaning the blood of a person by separating urea from it is called: A) Dialysis. B) Filtration. C) Osmosis. D) Double circulation. Show Answer Correct Answer: A) Dialysis. 38. Which among the following procedures is used for cleaning the blood of a person by separating the waste substance from it? A) Hydrolysis. B) Kidney transplant. C) Blood transfusion. D) Dialysis. Show Answer Correct Answer: D) Dialysis. 39. The back flow of blood during the pumping of blood by heart is prevented by: A) Walls of ventricles. B) Walls of atrium. C) Valves in heart. D) Walls between atria and ventricles. Show Answer Correct Answer: C) Valves in heart. 40. What type of nutrition is followed by amoeba? A) Saphrotrophic. B) Parasitic. C) Autotrophic. D) Holozoic. Show Answer Correct Answer: D) Holozoic. 41. The cellular energy reserves in autotrophs are ..... A) Protein. B) Fatty acids. C) Starch. D) Glycogen. Show Answer Correct Answer: D) Glycogen. 42. Photosynthesis is: A) Synthesis of photosensitive compounds. B) Oxidation of carbon dioxide. C) Oxidation of glucose. D) Trapping energy of sunlight to form glucose. Show Answer Correct Answer: D) Trapping energy of sunlight to form glucose. 43. Which of these is the simplest form of food? A) Butter. B) Wheat. C) Glucose. D) Rice. Show Answer Correct Answer: C) Glucose. 44. Saliva contains the enzyme named: A) Pepsin. B) Amylase. C) Luciferase. D) None of the above. Show Answer Correct Answer: B) Amylase. 45. In which part of the alimentary canal does digestion of protein begin? A) Small intestine. B) Buccal cavity. C) Stomach. D) Oesophagus. Show Answer Correct Answer: C) Stomach. 46. ..... is the force of blood on the walls of the blood vessels. A) Hypertension. B) Blood Pressure. C) Pulse. D) Heart rate. Show Answer Correct Answer: B) Blood Pressure. 47. A person sweats to keep body temperature at a safe level A) Digestion. B) Nutrition. C) Circulation. D) Homeostasis. Show Answer Correct Answer: D) Homeostasis. 48. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains A) Simple proteins. B) Complex proteins. C) Starch. D) Fats. Show Answer Correct Answer: C) Starch. 49. Pulmonary vein opens at: A) Right auricle. B) Left auricle. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: B) Left auricle. 50. Contraction in the right ventricle pumps blood into the A) Coronary artery. B) Pulmonary vein. C) Pulmonary artery. D) Aorta. Show Answer Correct Answer: C) Pulmonary artery. 51. During respiration exchange of gases takes place in ..... A) Trachea and Larynx. B) Alveoli of Lungs. C) Alveoli and Throat. D) Throat and Larynx. Show Answer Correct Answer: B) Alveoli of Lungs. 52. The vein which brings clean blood from the lungs into the heart is known as: A) Superior Vena Cava. B) Pulmonary vein. C) Pulmonary artery. D) Hepatic vein. Show Answer Correct Answer: C) Pulmonary artery. 53. Which is the correct air passage in the breathing mechanism? A) Nostril, nasal cavity, larynx, pharynx, trachea, bronchus, bronchiole, alveolus. B) Nostril, nasal cavity, trachea, larynx, pharynx, bronchus, bronchiole, alveolus. C) Nostril, nasal cavity, pharynx, larynx, trachea, bronchiole, bronchus, alveolus. D) Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus. Show Answer Correct Answer: D) Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus. 54. Among the following choose the correct option which includes the organisms that have a holozoic mode of nutrition: A) Plasmodium and Amoeba. B) Parakeet and Amoeba. C) Paramecium and Plasmodium. D) Paramecium and Parasite. Show Answer Correct Answer: B) Parakeet and Amoeba. 55. The blood vessels that carry blood back to the heart is ..... A) Vein. B) Capillary. C) Artery. D) Platelets. Show Answer Correct Answer: A) Vein. 56. Name the pores in a leaf through which respi-ratory exchange of gases takes place. A) Xylem. B) Vacuoles. C) Lenticels. D) Stomata. Show Answer Correct Answer: D) Stomata. 57. Bile juice is released by A) Liver. B) Small intestine. C) Large intestine. D) Stomach. Show Answer Correct Answer: A) Liver. 58. Organisms are made of at least two cells A) Multicellular. B) Unicellular. C) All the above. D) None of the above. Show Answer Correct Answer: A) Multicellular. 59. How many types of respiration are there? A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: D) 2. 60. Where in the cell does anaerobic respiration take place? A) Nucleus. B) Cell membrane. C) Cytoplasm. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. ← PreviousNext →Related QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 6 Life Processes Quiz 1Class 10 Science Chapter 6 Life Processes Quiz 3Class 10 Science Chapter 6 Life Processes Quiz 4Class 10 Science Chapter 6 Life Processes Quiz 5Class 10 Science Chapter 6 Life Processes Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books