This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 6 Life Processes – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 6 Life Processes Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which of the following equations is the summary of photosynthesis? A) 6CO2 + 12H2O $\rightarrow$ C6H12O6 + 6O2 + 6H2O. B) 6CO2 + H2O + Sunlight $\rightarrow$ C6H12O6 + O2 + 6H2O. C) 6CO2 + 12H2O + Chlorophyll + Sunlight $\rightarrow$ C6H12O6 + 6O2 + 6H2O. D) 6CO2 + 12H2O + Chlorophyll + Sunlight $\rightarrow$ C6H12O6 + 6CO2 + 6H2O. Show Answer Correct Answer: D) 6CO2 + 12H2O + Chlorophyll + Sunlight $\rightarrow$ C6H12O6 + 6CO2 + 6H2O. 3. Which plant tissue transports water and minerals from the roots to the leaf? A) Xylem. B) Flam. C) Parenchyma. D) Collenchyma. Show Answer Correct Answer: A) Xylem. 4. Chlorophyll is mainly located in which part of the plant A) Green leaf. B) Bark. C) Stem. D) Root. Show Answer Correct Answer: A) Green leaf. 5. Respiratory pigment in human body is I. A) Chlorophyll. B) Water. C) Blood. D) Haemoglobin. Show Answer Correct Answer: D) Haemoglobin. 6. 7) Name a circulatory fluid in the human body other than blood. A) Platelets. B) RBC. C) Lymph. D) Plasma. Show Answer Correct Answer: C) Lymph. 7. In which of the following groups of organisms, food material is broken down outside the body and absorbed? A) Mushroom, green plants, Amoeba. B) Yeast, mushroom, bread mould. C) Paramecium, Amoeba, Cuscuta. D) Cuscuta, lice, tapeworm. Show Answer Correct Answer: B) Yeast, mushroom, bread mould. 8. Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps? A) Ethanol + Carbon dioxide + Energy. B) Lactic acid + Energy. C) Carbon dioxide + Water + Energy. D) Pyruvate. Show Answer Correct Answer: B) Lactic acid + Energy. 9. The formula for glucose is ..... A) C$_{12}$ H$_{22}$ O$_{11}$. B) NaCl. C) NaOH. D) C$_{6}$ H$_{12}$ O$_{6}$. Show Answer Correct Answer: D) C$_{6}$ H$_{12}$ O$_{6}$. 10. Name a circulatory fluid in the human body other than blood A) Platelets. B) RBC. C) Lymph. D) Plasma. Show Answer Correct Answer: C) Lymph. 11. 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. 12. In which mode of nutrition an organism de-rives its food from the body of another living organism without killing it? A) Saprophytic nutrition. B) Holozoic nutrition. C) Parasitic nutrition. D) Autotrophic. Show Answer Correct Answer: C) Parasitic nutrition. 13. 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. 14. 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). 15. IN TISSUES OF HUMAN BEINGS, GLUCOSE IS CONVERTED INTO PYRUVIC ACID IN THE A) CYTOPLASM. B) CHLOROPLAST. C) MITOCHONDRIA. D) GOLGI BODY. Show Answer Correct Answer: A) CYTOPLASM. 16. 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. 17. 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. 18. 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. 19. HCl is secreted by ..... A) Pancreas. B) Gastric gland. C) Small intestine. D) Liver. Show Answer Correct Answer: B) Gastric gland. 20. In which group of the organisms the food material is broken down outside the body? A) Mushroom, green plants, amoeba. B) Paramecium, Amoeba, Cuscuta. C) Yeast, mushroom, bread mould. D) Cuscuta, lice, tapeworm. Show Answer Correct Answer: C) Yeast, mushroom, bread mould. 21. One of the following is not an enzyme of digestive system. A) PEPSIN. B) LIPASE. C) TRYPSIN. D) Enterogastrone. Show Answer Correct Answer: D) Enterogastrone. 22. Oxygen binds to which pigment in RBC A) Chlorophyll. B) Haemoglobin. C) Leucocytes. D) None. Show Answer Correct Answer: B) Haemoglobin. 23. 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. 24. 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. 25. A few drops of iodine solution were added to rice water. The solution turned blue black in colour. This indicates rice water has- A) Complex proteins. B) Simple proteins. C) Starch. D) Fats. Show Answer Correct Answer: C) Starch. ← PreviousNext →Related QuizzesClass 10 Science Chapter 6 Life Processes Quiz 1Class 10 Science Chapter 6 Life Processes Quiz 2Class 10 Science Chapter 6 Life Processes Quiz 4Class 10 Science Chapter 6 Life Processes Quiz 5Class 10 Science Chapter 6 Life Processes Quiz 6Class 10 Science Chapter 6 Life Processes Quiz 7Class 10 Science Chapter 6 Life Processes Quiz 8Class 10 Science Chapter 6 Life Processes Quiz 9Class 10 Science Chapter 6 Life Processes Quiz 10Class 10 Science Chapter 6 Life Processes Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books