This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 13 Photosynthesis In Higher Plants – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What role do stomata play in photosynthesis? A) Stomata facilitate gas exchange, allowing carbon dioxide in and oxygen out during photosynthesis. B) Stomata produce chlorophyll for photosynthesis. C) Stomata store water for plant growth. D) Stomata absorb sunlight for photosynthesis. Show Answer Correct Answer: A) Stomata facilitate gas exchange, allowing carbon dioxide in and oxygen out during photosynthesis. 2. The chlorophyll having empirical formula C55H72O5N4Mg is A) Chlorophyll c. B) Chlorophyll d. C) Chlorophyll a. D) Chlorophyll b. Show Answer Correct Answer: C) Chlorophyll a. 3. Ferredoxin is a constituent of A) Hill reaction. B) P 680. C) PS I. D) PS II. Show Answer Correct Answer: C) PS I. 4. The Calvin Cycle takes place in the: A) Stomata. B) Grana. C) Thylakoid. D) Stroma. Show Answer Correct Answer: D) Stroma. 5. In mitochondria, the electron transport chain pumps protons from the matrix into the intermembrane space, whereas in chloroplasts, the electron transport chain pumps protons from A) Intermembrane space to stroma. B) Thylakoid space to stroma. C) Matrix to stroma. D) Stroma to thylakoid space. Show Answer Correct Answer: D) Stroma to thylakoid space. 6. What would happen to a plant if it can't generate any photosynthesis? A) It can't generate respiration. B) Nothing happen. C) Stored food will be used. D) It will die at once. Show Answer Correct Answer: C) Stored food will be used. 7. Who found that in green parts of plant glucose is made and glucose is stored as starch- A) Sachs. B) Arnon. C) Englemann. D) Arnold. Show Answer Correct Answer: A) Sachs. 8. What process occurs when light energy is captured in autotrophs and converted into sugar? A) Photosynthesis. B) Cellular Respiration. C) All the above. D) None of the above. Show Answer Correct Answer: A) Photosynthesis. 9. The rate of photosynthesis does not depend upon A) Light duration. B) Light intensity. C) Temperature. D) Light quality (colour). Show Answer Correct Answer: A) Light duration. 10. What is the primary pigment involved in photosynthesis that absorbs sunlight? A) Carotene. B) Anthocyanin. C) Chlorophyll. D) Xanthophyll. Show Answer Correct Answer: C) Chlorophyll. 11. Protons move into the thylakoid due to the A) Concentration gradient in the stroma. B) Movement of electrons through the electron transport chain. C) Brownian motion of the protons. D) Peer pressure of the cool electrons in the stroma. Show Answer Correct Answer: B) Movement of electrons through the electron transport chain. 12. Which process uses the products of photosynthesis as reactants? A) Active transport. B) Protein synthesis. C) DNA replication. D) Cellular respiration. Show Answer Correct Answer: D) Cellular respiration. 13. How many raw materials (ingredients) does photosynthesis require? A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: D) 3. 14. What is the function of NADPH and ATP? A) They absorb light. B) They power the light-dependent reactions. C) They are light-reflecting pigments. D) They act as short-term energy storage. Show Answer Correct Answer: D) They act as short-term energy storage. 15. Read the following statements and select the correct ones.(i) PS I is involved in non-cyclic photophosphorylation only. (ii) PS II is involved in both cyclic and non-cyclic photophosphorylation only. (iii) Stroma lamellae membranes possess PS I only, whereas grana lamellae membranes possess both PS I and PS II A) (i) only. B) (ii) only. C) (iii) only. D) (i), (ii) and (iii). Show Answer Correct Answer: C) (iii) only. 16. Does plant generate photosynthesis at night? A) No, there is no light. B) Yes, but with small intensity. C) No, there is only respiration can occur at night. D) Yes, same as during the daylight. Show Answer Correct Answer: B) Yes, but with small intensity. 17. Empirical formula of carotenes is A) C55H72O5N4Mg. B) C40H56. C) C40H56O. D) C55H70O6N4Mg. Show Answer Correct Answer: B) C40H56. 18. Photosynthesis occurs ..... A) During the night. B) During the day. C) Both during day and night. D) None of the above. Show Answer Correct Answer: B) During the day. 19. What colour of light is best absorbed by plants? A) Red and blue. B) Green and Yellow. C) Red and green. D) Blue and green. E) Only green. Show Answer Correct Answer: A) Red and blue. 20. An ..... can make its own food, while a ..... cannot make its own food. A) Autotroph, Heterotroph. B) Heterotroph, Autotroph. C) Chlorophyll, Chloroplast. D) None of the above. Show Answer Correct Answer: A) Autotroph, Heterotroph. 21. Which one of the following is incorrect about the activities associated with PS-I and PS-II in non-cyclic photophosphorylation? A) Water is oxidised in PS-II, but not in PS-I. B) Photons (light) are needed to activate both PS-I and PS-II. C) Photolysis of water, formation of ATP + NADPH + H + occur. D) Production of NADPH + H+ is associated with PS II, but not with PS-I. Show Answer Correct Answer: D) Production of NADPH + H+ is associated with PS II, but not with PS-I. 22. Which light range is most effective in photosynthesis? A) Violet. B) Green. C) Red. D) Blue. Show Answer Correct Answer: C) Red. 23. The role of the guard cell is to A) Control the movement of water vapour & gases. B) Help control the temperature of the plant. C) Control how much water enters the leaf. D) Control how much glucose is stored. Show Answer Correct Answer: A) Control the movement of water vapour & gases. 24. TRUE or FALSE:Animals can make their own food inside themselves. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. What role do producers play in an ecosystem? A) They provide energy for other organisms through photosynthesis. B) They decompose dead organisms. C) They produce oxygen through photosynthesis. D) They consume other organisms for energy. Show Answer Correct Answer: A) They provide energy for other organisms through photosynthesis. 26. In blue green algae photosynthesis takes place in A) Lamellisome. B) Chloroplast. C) Carotene. D) Heterocysts. Show Answer Correct Answer: A) Lamellisome. 27. Where does the Calvin Cycle occur? A) Stroma. B) Lumen. C) Thylakoid. D) Mitochondria. Show Answer Correct Answer: A) Stroma. 28. The alternative pathways of photosynthesis using the C$_{4}$ or CAM systems are said to be compromises. Why? A) C$_{4}$ compromises on water loss and CAM compromises on photorespiration. B) Both minimize photorespiration but expend more ATP during carbon fixation. C) CAM plants allow more water loss, whereas C$_{4}$ plants allow less CO$_{2}$ into the plant. D) C$_{4}$ plants allow less water loss but CAM plants allow more water loss. Show Answer Correct Answer: B) Both minimize photorespiration but expend more ATP during carbon fixation. 29. What pigment is green in plants? A) Stroma. B) Stomata. C) Chlorophyll. D) Mitochondria. Show Answer Correct Answer: C) Chlorophyll. 30. Which gas is removed from the atmosphere during photosynthesis? A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Hydrogen. Show Answer Correct Answer: C) Carbon dioxide. 31. Why are plants important to life on Earth? A) They make our world more beautiful. B) They make the planet look green. C) They use carbon dioxide and give us oxygen. D) They provide shade for insects. Show Answer Correct Answer: C) They use carbon dioxide and give us oxygen. 32. What does the "TP" in ATP stand for? A) Tri (3) phosphates. B) Two proteins. C) Tri (3) proteins. D) 2 phosphates. Show Answer Correct Answer: A) Tri (3) phosphates. 33. What is the primary function of chlorophyll in photosynthesis? A) To release oxygen during photosynthesis. B) To provide structural support to the plant. C) The primary function of chlorophyll in photosynthesis is to absorb light energy. D) To store energy for later use. Show Answer Correct Answer: C) The primary function of chlorophyll in photosynthesis is to absorb light energy. 34. What is chlorophyll's main function? A) To make the plant a vegetable. B) To blend into their environment. C) To capture energy from sunlight for photosynthesis. D) To help prevent water loss. Show Answer Correct Answer: C) To capture energy from sunlight for photosynthesis. 35. The enzyme ATPase couples the synthesis of ATP to- A) The excitation of Chl. B) The diffusion of protons. C) Carbon dioxide fixation. D) The reduction of NADP$^{+ }$. Show Answer Correct Answer: B) The diffusion of protons. 36. The chlorophyll having molecular weight 907 is A) Chlorophyll d. B) Chlorophyll c. C) Chlorophyll b. D) Chlorophyll a. Show Answer Correct Answer: C) Chlorophyll b. 37. How do photosynthesis and cellular respiration compare? A) . They both use oxygen to produce carbon dioxide. B) They both use carbon dioxide to produce oxygen. C) Photosynthesis uses oxygen and produces carbon dioxide, while respiration uses carbon dioxide and produces oxygen. D) Photosynthesis uses carbon dioxide and produces oxygen, while respiration uses oxygen and produces carbon dioxide. Show Answer Correct Answer: D) Photosynthesis uses carbon dioxide and produces oxygen, while respiration uses oxygen and produces carbon dioxide. 38. Which among the following sentence is incorrect about light reaction? A) It is also known as 'photochemical' phase. B) It includes light absorption, water splitting, oxygen release, and the formation of highenergy chemical intermediates. C) Reaction centre consist of single molecule of chl a but 2 molecules of chl b. D) The pigments are organised into two discrete photochemical light harvesting complexes (LHC) within PS-I and PS-II. Show Answer Correct Answer: C) Reaction centre consist of single molecule of chl a but 2 molecules of chl b. 39. The former set of reactions in photosynthesis that are directly light driven are called ..... A) Light reactions. B) Biosynthetic phase. C) Synthesis phase. D) Dark reactions. Show Answer Correct Answer: A) Light reactions. 40. Which statement best explains the process of transpiration in plants? A) Oxygen and water vapor are absorbed by roots. B) Oxygen and water vapor are absorbed by leaves. C) Oxygen and water vapor are released from roots. D) Oxygen and water vapor are released from leaves. Show Answer Correct Answer: D) Oxygen and water vapor are released from leaves. 41. Suppose the interior of the thylakoids of isolated chloroplasts were made acidic and then transferred in the dark to a pH 8 solution. What would be likely to happen? A) The isolated chloroplasts will reduce NADP$^{+}$ to NADPH. B) The Calvin cycle will be activated. C) The isolated chloroplasts will make ATP. D) The isolated chloroplasts will generate oxygen gas. Show Answer Correct Answer: C) The isolated chloroplasts will make ATP. 42. Which pigment is primarily responsible for absorbing light during photosynthesis? A) Anthocyanin. B) Xanthophyll. C) Carotene. D) Chlorophyll. Show Answer Correct Answer: D) Chlorophyll. 43. In C$_{4 }$plants$_{ }$the initial$_{ }$reactions to fix CO$_{2}$ occur in the A) Guard cells. B) Bundle-sheath cells. C) Epidermal cells. D) Mesophyll cells. Show Answer Correct Answer: D) Mesophyll cells. 44. A deer consumes most of the leaves on a plant. What is the most immediate effect on the plant? A) The plant's rate of transpiration will increase because there will be more areas exposed to the atmosphere. B) The plant's height will decrease because it will be unable to hold itself upright. C) The plant's ability to take in nutrients through the soil will be increased. D) The plant's ability to make and store food will be limited. Show Answer Correct Answer: D) The plant's ability to make and store food will be limited. 45. Photosynthesis in C$_{4 }$plants is usually not limited by atmospheric CO$_{2}$ levels because A) Four carbon acids are the primary initial CO$_{2}$ fixation products. B) The primary fixation of CO$_{2}$ is mediated via PEP carboxylase. C) Effective transportation of CO$_{2}$ as malic acid into bundle sheath cells. D) RubisCO in C$_{4}$ plants has higher affimity for CO$_{2}$. Show Answer Correct Answer: B) The primary fixation of CO$_{2}$ is mediated via PEP carboxylase. 46. Which equation below show photosynthesis? A) C$_{6}$H$_{12}$O$_{6}$ + CO$_{2}$ $\rightarrow$ H$_{2}$O + O$_{2(w light energy)}$. B) C$_{6}$H$_{12}$O$_{6}$ + O$_{2}$ $\rightarrow$ H$_{2}$O + CO$_{2 (w light energy)}$. C) H$_{2}$O+ O$_{2}$$\rightarrow$ C$_{6}$H$_{12}$O$_{6}$+ CO$_{2}$ $_{(w light energy)}$. D) ATP + O$_{2}$ + CO$_{2}$ $\rightarrow$ H$_{2}$O+C$_{6}$H$_{12}$O$_{6}$. Show Answer Correct Answer: A) C$_{6}$H$_{12}$O$_{6}$ + CO$_{2}$ $\rightarrow$ H$_{2}$O + O$_{2(w light energy)}$. 47. Which experimental setup can be used to measure the effect of carbon dioxide concentration on photosynthesis? A) Using different carbon dioxide concentrations in a closed environment. B) Using different water levels. C) Using different plant species. D) Using different soil types. Show Answer Correct Answer: A) Using different carbon dioxide concentrations in a closed environment. 48. When I see a red color on a shirt, what has happened? A) All colors of the visible light spectrum are being absorbed and red is being reflected. B) All colors of the visible light spectrum are being reflected and red is being absorbed. C) All the above. D) None of the above. Show Answer Correct Answer: A) All colors of the visible light spectrum are being absorbed and red is being reflected. 49. Living things that use the Sun's energy to make their own food are called? A) Successors. B) Prodigy. C) Producers. D) Pop Stars. Show Answer Correct Answer: C) Producers. 50. Increasing temperature can increase enzyme activity to a certain point. Then what happens? A) The enzymes have completed all the reactions so stop. B) The enzymes have been denatured or destroyed. C) Nothing-the rate continues to increase all the time. D) None of the above. Show Answer Correct Answer: B) The enzymes have been denatured or destroyed. 51. Photosynthesis is considered as an oxidation reaction because ..... (MHT-CET 2016) A) H$_{2}$O is oxidised. B) CH$_{2}$O is oxidised. C) O$_{2 }$is released. D) CO$_{2 }$is oxidised. Show Answer Correct Answer: A) H$_{2}$O is oxidised. 52. In C$_{4 }$plants$_{, }$the Calvin cycle occurs in A) Epidermal cells. B) Mesophyll cells. C) Bundle-sheath cells. D) Guard cells. Show Answer Correct Answer: C) Bundle-sheath cells. 53. Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle? A) CO2 and glucose. B) H2O and O2. C) Electrons and H+. D) ATP and NADPH. Show Answer Correct Answer: D) ATP and NADPH. 54. For photosynthesis, a plant needs water, sun, and ..... A) Mitochondria. B) Oxygen. C) Carbon dioxide. D) Glucose. Show Answer Correct Answer: C) Carbon dioxide. 55. What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur. A) Sunlight, oxygen, water. B) Water, oxygen, carbon dioxide. C) Carbon dioxide, sunlight, water. D) Oxygen, glucose, sunlight. Show Answer Correct Answer: C) Carbon dioxide, sunlight, water. 56. Which type of plant does not have a carbon dioxide storage method A) C3. B) C4. C) CAM. D) None of the above. Show Answer Correct Answer: A) C3. 57. How does carbon dioxide enter the plant for photosynthesis? A) Through the roots of the plant. B) Through small openings called stomata. C) Through the leaves' surface directly. D) Through the flowers during blooming. Show Answer Correct Answer: B) Through small openings called stomata. 58. The structure which anchors the porphyrin ring of chlorophyll to the membrane of thylakoid. A) Phytol. B) Porphyrin. C) Stroma lamellae. D) Membrane proteins. Show Answer Correct Answer: A) Phytol. 59. Which tissue in a leaf does the majority of photosynthesis? A) Upper epidermis. B) Palisade mesophyll. C) Spongy mesophyll. D) Stomata. Show Answer Correct Answer: B) Palisade mesophyll. 60. Which choice correctly shows the gases that enter and exit plants during photosynthesis? A) Enter:Water vaporExit:Glucose. B) Enter:OxygenExit:Carbon dioxide. C) Enter:LightExit:Water vapor. D) Enter:Carbon dioxideExit:Oxygen. Show Answer Correct Answer: D) Enter:Carbon dioxideExit:Oxygen. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 6Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 7Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books