This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 13 Photosynthesis In Higher Plants – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the chemical equation for photosynthesis? Choose the BEST answer A) C6H12O6 + O2 $\rightarrow$ CO2 + H2O. B) CO2 + H2O $\rightarrow$ C6H12O6 + O2. C) 6 CO2 + 6 H2O $\rightarrow$ C6H12O6 + 6 O2. D) C6H12O6 + 6 O2 $\rightarrow$ 6 CO2 + 6 H2OTagsPhotosynthesis. Show Answer Correct Answer: C) 6 CO2 + 6 H2O $\rightarrow$ C6H12O6 + 6 O2. 2. How do plants adapt to optimize photosynthesis in different environments? A) Plants rely solely on sunlight for photosynthesis. B) Plants optimize photosynthesis by modifying leaf structure, adjusting stomatal openings, and employing C3, C4, or CAM pathways. C) Plants do not change their leaf structure in different environments. D) Plants only use one type of photosynthetic pathway regardless of conditions. Show Answer Correct Answer: B) Plants optimize photosynthesis by modifying leaf structure, adjusting stomatal openings, and employing C3, C4, or CAM pathways. 3. When testing a leaf for starch why is it necessary to boil it in ethanol first? A) To break open the plant cells. B) To release the starch form the cells. C) To kill the plant cells. D) To remove the green chlorophyll from the leaf. Show Answer Correct Answer: D) To remove the green chlorophyll from the leaf. 4. What is the chemical formula for oxygen? A) H$_{12}$O$_{2}$$_{}$. B) C$_{6}$O$_{2}$. C) O$_{3}$. D) O$_{2}$. Show Answer Correct Answer: D) O$_{2}$. 5. What do photosynthesis and cellular respiration have in common? A) They both require Sun light. B) Both are carried on by heterotrophs. C) They both create energy for an organism to use. D) They both transform energy for an organism to use. Show Answer Correct Answer: D) They both transform energy for an organism to use. 6. The ..... the temperature, the more photosynthesis can occur. A) Higher. B) Lower. C) All the above. D) None of the above. Show Answer Correct Answer: A) Higher. 7. Bean shaped cells near the opening of stomata A) Guard cells. B) Stoma open. C) Stoma close. D) None of the above. Show Answer Correct Answer: A) Guard cells. 8. The vascular system is composed of two types of tissues called A) Protective and supportive. B) Xylem and phloem. C) Meristematic and permanent. D) Parenchyma and chlorenchyma. Show Answer Correct Answer: B) Xylem and phloem. 9. Is photosynthesis an endothermic or exothermic reaction? A) Exothermic. B) Endothermic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Endothermic. 10. Photosyntheis is the process in which humans, and animals use energy from sunlight to produce sugar. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. How are photosynthesis and cellular respiration related? A) They have opposite equations. B) They have the same equation. C) They both produce carbon dioxide. D) They both produce oxygen. Show Answer Correct Answer: A) They have opposite equations. 12. What are located in the chloroplast? A) Pigments. B) Mitochondria. C) Sucrose. D) None of these answera. Show Answer Correct Answer: A) Pigments. 13. In C3 photosynthesis, the reactions that require ATP take place in A) The light reactions alone. B) The calvin cycle only. C) Both the light reactions and the calvin cycle. D) The citric acid cycle. Show Answer Correct Answer: B) The calvin cycle only. 14. The source of O2 liberated in photosynthesis in green plants is A) Photosynthetic enzyme. B) Carbohydrate present in leaf. C) Water. D) Carbon dioxide. Show Answer Correct Answer: C) Water. 15. In the light independent reaction ATP is used to A) Combine H$_{2}$O with the carbon atom carried by NADPH to form glucose. B) Combine CO$_{2}$ with the hydrogen atom carried by NADPH to form glucose. C) Combine CO$_{2}$ with the hydrogen atom carried by ADP+P to form glucose. D) None of the above. Show Answer Correct Answer: B) Combine CO$_{2}$ with the hydrogen atom carried by NADPH to form glucose. 16. Chemosynthetic bacteria obtain energy from A) Sun. B) Infrared rays. C) Organic substances. D) Inorganic chemicals. Show Answer Correct Answer: D) Inorganic chemicals. 17. The common feature between cyclic and non cyclic photo phosphorylation is:- A) Photosystem-II. B) Source of electrons. C) Proton gradient. D) Release of O$_{2}$. Show Answer Correct Answer: C) Proton gradient. 18. What is a prop root? A) A root that stores food. B) A root that grows above the ground and helps hold the plant upright. C) A root that can't absorb water. D) A root that grows from the tips of the leaves. Show Answer Correct Answer: B) A root that grows above the ground and helps hold the plant upright. 19. What would be the expected effect on plants if the atmospheric CO$_{2}$ concentration was doubled? A) All plants will experience increased rates of photosynthesis. B) C$_{3}$ plants will have faster growth; C$_{4}$ plants will be minimally affected. C) C$_{4}$ plants will have faster growth; C$_{3}$ plants will be minimally affected. D) C$_{3}$ plants will have faster growth; C$_{4}$ plants will have slower growth. Show Answer Correct Answer: B) C$_{3}$ plants will have faster growth; C$_{4}$ plants will be minimally affected. 20. Which of these will not affect photosynthesis? A) Light. B) Temperature. C) Glucose Availability. D) Carbon Dioxide. Show Answer Correct Answer: C) Glucose Availability. 21. The energy to hydrolyse water comes from- A) Oxidised chlorophyll. B) Reduced Chl. C) The proton gradient. D) ATP. Show Answer Correct Answer: A) Oxidised chlorophyll. 22. Action spectrum of photosynthetic pigments was studied by Englemann on ..... in the presence of ..... bacteria. A) Spirogyra, Anaerobic. B) Cladophora, aerobic. C) Chlorella, Aerobic. D) Scenedesmus, Anaerobic. Show Answer Correct Answer: B) Cladophora, aerobic. 23. The more light, the ..... the rate of photosynthesis A) Higher. B) Lower. C) Same. D) None of the above. Show Answer Correct Answer: A) Higher. 24. Pigments are organised into two discrete photochemical light harvesting complexes within the PS I and PS II. These are named in A) The sequence of discovery. B) Which they function in light reaction. C) The sequence of arrangement of chlorophylls. D) More than one option is correct. Show Answer Correct Answer: A) The sequence of discovery. 25. Plants need ..... as a reactant for photosynthesis. A) Oxygen. B) Soil. C) Carbon dioxide. D) Sugar. Show Answer Correct Answer: C) Carbon dioxide. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 1Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 2Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 3Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 4Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 5Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 7Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 8Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 9Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 10Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books