This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Life Processes > Class 10 Science Chapter 6 Life Processes – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 6 Life Processes Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. To be discharged in the form of a steam of water from the leaves of the plant A) Syrian action. B) Root pressure. C) Village pressure. D) Trans Location. Show Answer Correct Answer: A) Syrian action. 2. Examples of actions of life A) Nutrition. B) Breathing action. C) Examination work. D) High insertion of all. Show Answer Correct Answer: D) High insertion of all. 3. In which part of the alimentary canal food is finally digested? A) Large intestine. B) Stomach. C) Small intestine. D) Mouth Cavity. Show Answer Correct Answer: C) Small intestine. 4. Aerobic respiration is different from anaerobic respiration in that aerobic respiration needs ..... A) Glucose. B) Carbon dioxide. C) Chlorophyll. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 5. ..... is the final product of glycolysis. A) Acetyl coA. B) ATP. C) Carbon dioxide. D) Pyruvic acid. Show Answer Correct Answer: D) Pyruvic acid. 6. Which part of the plant takes in carbon dioxide from the air for photosynthesis? A) Leaf veins. B) Root hairs. C) Stomata. D) Sepals. Show Answer Correct Answer: C) Stomata. 7. When a few drops of iodine solution are added to rice water, the solution turns blue-black in colour. This indicates that rice water contains: A) Complex protein. B) Simple protein. C) Fats. D) Starch. Show Answer Correct Answer: D) Starch. 8. 10) Movement of the synthesized products from the leaves to the roots and other parts of a plant's body takes place through the phloem. This process is known as: A) Transpiration. B) Excretion. C) Translocation. D) Transportation. Show Answer Correct Answer: C) Translocation. 9. What is the function of the respiratory system A) Take in O2 only. B) Take in O2 ad remove CO2. C) Remove CO2 only. D) Make sugar. Show Answer Correct Answer: B) Take in O2 ad remove CO2. 10. What are the products of photosynthesis? A) Carbon dioxide and water. B) Carbon dioxide and oxygen. C) Glucose and oxygen. D) Glucose and water. Show Answer Correct Answer: C) Glucose and oxygen. 11. What are the raw materials of photosynthesis? A) Oxygen and carbon dioxide. B) Oxygen and glucose. C) Carbon dioxide and water. D) Water and glucose. Show Answer Correct Answer: C) Carbon dioxide and water. 12. The Human respiratory system exists in: A) Abdominal cavity. B) Thoracic cavity. C) Pleural cavity. D) None of the above. Show Answer Correct Answer: B) Thoracic cavity. 13. Scientist discovered and classified animals into two groups which is Vertebrates and Invertebrates. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. Process where food is broken down to release chemical energy. Occurs in the mitochondria. A) Cellular Respiration. B) Photosynthesis. C) Passive Transport. D) Active Transport. Show Answer Correct Answer: A) Cellular Respiration. 15. If salivary amylase is lacking in saliva, which of the event in mouth will be affected A) Proteins breaking down into amino acids. B) Starch breaking down into sugars. C) Fats breaking down into fatty acids and glycerol. D) Absorption of vitamins. Show Answer Correct Answer: B) Starch breaking down into sugars. 16. Which out of them is the raw material for photosynthesis? A) Carbon Dioxide. B) Water. C) Oxygen. D) All of the above. Show Answer Correct Answer: D) All of the above. 17. The ..... is the most photosynthetic part of a plant. A) Roots. B) Stem. C) Leaf. D) Flower. Show Answer Correct Answer: C) Leaf. 18. Which of the following is correct:The role of nasal cavity in human respiratory system (i) Filtration of inhaled air. (ii) Removal of germs and dust.(iii) Moistening of the inhaled air. A) (I) & (II). B) (ii) & (iii). C) All of these. D) None of these. Show Answer Correct Answer: B) (ii) & (iii). 19. What is cellular respiration? A) The breakdown of glucose to release NADH. B) The breakdown of glucose to release carbon. C) The breakdown of glucose to release FADH. D) The breakdown of glucose to release ATP. Show Answer Correct Answer: D) The breakdown of glucose to release ATP. 20. The lamina is broad to increase surface area for maximum absorption of light energy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. Assertion (A):The excretory unit of kidney is nephron. Reason(R):It carries out filtration, selective absorption and tubular secretion to form urine in kidney. 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). 22. Which of these parts is not part of the human system extraction A) Kidney. B) Bladder. C) O and Ta. D) Vinikiva. Show Answer Correct Answer: D) Vinikiva. 23. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates the rice water has A) Starch. B) Simple proteins. C) Fats. D) Complex proteins. Show Answer Correct Answer: D) Complex proteins. 24. The green pigment used in photosynthesis is A) Phytochrome. B) Chlorophyll. C) Hemoglobin. D) None. Show Answer Correct Answer: B) Chlorophyll. 25. Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of: A) Lactic acid. B) Fat. C) Hydrochloric acid. D) Carbon dioxide. Show Answer Correct Answer: A) Lactic acid. 26. The correct path of urine is ..... A) Kidney $\rightarrow$ urinary bladder $\rightarrow$ urethra $\rightarrow$ ureter. B) Kidney$\rightarrow$ ureter $\rightarrow$ urinary bladder$\rightarrow$ urethra. C) Urinary bladder $\rightarrow$ kidney $\rightarrow$ ureter $\rightarrow$urethra. D) Kidney$\rightarrow$ ureter $\rightarrow$ urethra $\rightarrow$ urinary bladder. Show Answer Correct Answer: A) Kidney $\rightarrow$ urinary bladder $\rightarrow$ urethra $\rightarrow$ ureter. 27. Heterotrophic nutrition is A) The utilization of energy obtained by the plants. B) Breakdown of Glucose into energy. C) Oxidation of Glucose. D) All of the above. Show Answer Correct Answer: D) All of the above. 28. The part where the exchange of gases occurs during respiration is: A) Lungs and larynx. B) Alveoli and throat. C) Throat and lungs. D) Alveoli and capillaries. Show Answer Correct Answer: D) Alveoli and capillaries. 29. The breakdown of pyruvate into carbon dioxide, energy and water takes place in ..... A) Ribosomes. B) Endoplasmic reticulum. C) Mitochondria. D) Cytoplasm. Show Answer Correct Answer: C) Mitochondria. 30. What is the correct equation for cellular respiration? A) 6O$_{2}$ + C$_{6}$H$_{12}$O$_{6}$ + Energy $\rightarrow$ 6CO$_{2}$ + 6H$_{2}$O. B) 6CO$_{2}$ + 6H$_{2}$O $\rightarrow$ 6O$_{2}$ + C$_{6}$H$_{12}$O$_{6}$ + Energy. C) 6O$_{2}$ + C$_{6}$H$_{12}$O$_{6}$ $\rightarrow$ 6CO$_{2}$ + 6H$_{2}$O + Energy. D) 6CO$_{2 }$+ 6H$_{2}$O + Energy $\rightarrow$ 6O$_{2}$ + C$_{6}$H$_{12}$O$_{6}$. Show Answer Correct Answer: C) 6O$_{2}$ + C$_{6}$H$_{12}$O$_{6}$ $\rightarrow$ 6CO$_{2}$ + 6H$_{2}$O + Energy. 31. Choose the event that does not occur in photosynthesis? A) Conversion of light energy to chemical energy. B) Reduction of carbon dioxide to carbohydrates. C) Absorption of light energy by chlorophyll. D) Oxidation of carbon to carbon dioxide. Show Answer Correct Answer: D) Oxidation of carbon to carbon dioxide. 32. Blood vessel carry blood from lungs to heart through: A) Pulmonary artery. B) Pulmonary vein. C) Coronory artery. D) None of these. Show Answer Correct Answer: B) Pulmonary vein. 33. Which respiration is much efficient? A) Aerobic. B) Anaerobic. C) Both of them are equal. D) None of the above. Show Answer Correct Answer: A) Aerobic. 34. Which of the following is responsible for the transportof water and minerals from roots to aerial parts of theplant? A) Xylem. B) Flam. C) Cortex. D) Both (a) and (b). Show Answer Correct Answer: A) Xylem. 35. The only artery which carries deoxygenated blood is: A) Coronary artery. B) Pulmonary artery. C) Hepatic artery. D) Renal artery. Show Answer Correct Answer: B) Pulmonary artery. 36. We test for starch and not glucose to prove that photosynthesis has taken place because: A) Glucose is not produced during photosynthesis in variegated leaves. B) Glucose formed during photosynthesis gets stored as sucrose. C) Glucose formed during photosynthesis gets stored as starch. D) Glucose is a stable product and cannot be tested. Show Answer Correct Answer: C) Glucose formed during photosynthesis gets stored as starch. 37. Excretion commonly involves A) Removal of by products during catabolism. B) Removal of by products during anabolism. C) Removal of nitrogenous waste. D) All of the above. Show Answer Correct Answer: C) Removal of nitrogenous waste. 38. The site of photosynthesis in the cells of a leaf is A) Chloroplast. B) Cytoplasm. C) Protoplasm. D) Mitochondria. Show Answer Correct Answer: A) Chloroplast. 39. The process of obtaining food to meet the energy demands of the body is known as ..... A) Circulation. B) Nutrition. C) Respiration. D) Excretion. Show Answer Correct Answer: B) Nutrition. 40. What are released from white blood cells in order to protect the body from pathogens? A) Antibodies. B) Clots. C) Antigens. D) Antidotes. Show Answer Correct Answer: A) Antibodies. 41. Herbivores have longer small intestine than a carnivore. A) False. B) Can't say. C) True. D) None of the above. Show Answer Correct Answer: C) True. 42. The process of throwing out of undigested food in Amoeba is called A) Egestion. B) Digestion. C) Nutrition. D) None of these. Show Answer Correct Answer: A) Egestion. 43. Digestion of food in human starts from: A) Duodenum. B) (b) Small intestine. C) (c) Mouth. D) (d) Large intestine. Show Answer Correct Answer: C) (c) Mouth. 44. Which organisms perform Photosynthesis? A) Only Autotrophs. B) Only Heterotrophs. C) Autotrophs and Heterotrophs. D) None of the above. Show Answer Correct Answer: A) Only Autotrophs. 45. In Amoeba, ammonia is excreted through A) Plasma Membrane. B) Food Vacuole. C) Contractile Vacuole. D) Both (b) and (c). Show Answer Correct Answer: C) Contractile Vacuole. 46. The color of blood plasma is: A) Pale yellow. B) Yellowish green. C) Pink. D) Red. Show Answer Correct Answer: A) Pale yellow. 47. The cells utilize glucose to produce energy A) Excretion. B) Nutrition. C) Homeostasis. D) Respiration. Show Answer Correct Answer: D) Respiration. 48. What is the basic unit of structure and function in a living thing? A) An organ system. B) A tissue. C) An organ. D) A cell. Show Answer Correct Answer: D) A cell. 49. Name the vessel carrying deoxygenated blood from body parts to heart A) Pulmonary vein. B) Venacava. C) Pulmonary artery. D) Aorta. Show Answer Correct Answer: C) Pulmonary artery. 50. The mode of nutrition found in fungi is: A) Holozoic nutrition. B) Autotrophic nutrition. C) Saprotrophic nutrition. D) Parasitic nutrition. Show Answer Correct Answer: C) Saprotrophic nutrition. 51. If the rate of respiration becomes ore than the rate of photosynthesis, plants will A) Continue to live, but will not be able to store food. B) Be killed instantly. C) Grow more vigorously (rapidly) because more energy is available. D) Stop growing and gradually die of starvation. Show Answer Correct Answer: D) Stop growing and gradually die of starvation. 52. Which of the following equations is the summary of photosynthesis? A) 6CO2 + 12H2O + Chlorophyll + Sunlight $\rightarrow$ C6H12O6 + 6CO2 + 6H2O. B) 6CO2 + H2O + Sunlight $\rightarrow$ C6H12O6 + O2 + 6H2O. C) 6CO2 + 12H2O + Chlorophyll + Sunlight $\rightarrow$ C6H12O6 + 6O2 + 6H2O. D) 6CO2 + 12H2O $\rightarrow$ C6H12O6 + 6O2 + 6H2O. Show Answer Correct Answer: A) 6CO2 + 12H2O + Chlorophyll + Sunlight $\rightarrow$ C6H12O6 + 6CO2 + 6H2O. 53. Which plant tissue transports water and minerals from the roots to the leaf? A) Collenchyma. B) Parenchyma. C) Xylem. D) Flam. Show Answer Correct Answer: C) Xylem. 54. Chlorophyll is mainly located in which part of the plant A) Bark. B) Root. C) Stem. D) Green leaf. Show Answer Correct Answer: D) Green leaf. 55. Respiratory pigment in human body is I. A) Blood. B) Haemoglobin. C) Water. D) Chlorophyll. Show Answer Correct Answer: B) Haemoglobin. 56. 7) Name a circulatory fluid in the human body other than blood. A) Platelets. B) RBC. C) Plasma. D) Lymph. Show Answer Correct Answer: D) Lymph. 57. In which of the following groups of organisms, food material is broken down outside the body and absorbed? A) Cuscuta, lice, tapeworm. B) Mushroom, green plants, Amoeba. C) Yeast, mushroom, bread mould. D) Paramecium, Amoeba, Cuscuta. Show Answer Correct Answer: C) Yeast, mushroom, bread mould. 58. Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps? A) Pyruvate. B) Lactic acid + Energy. C) Ethanol + Carbon dioxide + Energy. D) Carbon dioxide + Water + Energy. Show Answer Correct Answer: B) Lactic acid + Energy. 59. The formula for glucose is ..... A) NaOH. B) NaCl. C) C$_{12}$ H$_{22}$ O$_{11}$. D) C$_{6}$ H$_{12}$ O$_{6}$. Show Answer Correct Answer: D) C$_{6}$ H$_{12}$ O$_{6}$. 60. Name a circulatory fluid in the human body other than blood A) Lymph. B) Plasma. C) RBC. D) Platelets. Show Answer Correct Answer: A) Lymph. Next →Related QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 6 Life Processes Quiz 2Class 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