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Class 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 2 (60 MCQs)

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1. What do leaves do for a plant?
2. Which organelle stores water for use in photosynthesis?
3. Which layer of the leaf is thin and transparent to allow light to penetrate?
4. What characteristic sets heterotrophs apart from autotrophs?
5. How do plants use the oxygen produced during photosynthesis?
6. A graph that plots the rate at which CO2 is converted to glucose versus the wavelength of light illuminating a leaf is called
7. Photosynthesis has two steps, what is needed in the first step but not in the 2nd?
8. What colour does iodine go if starch is present
9. In photosynthetic cells, synthesis of ATP by chemiosmosis occurs during
10. How do temperature changes influence photosynthesis?
11. Water splitting complex is associated with-
12. Where is the possible site for cyclic photophosphorylation?
13. Kranz Anatomy is found in
14. What gives plants their green color?
15. Why gives the different leaf colors in the fall?
16. Study the following statements regarding chl a molecule. (i) Molecular formula of chl a is C55H72O5N4Mg. (ii) It is the primary photosynthesis pigments. (iii) In pure state, it is red in colour and thus it absorbs more blue wave lengths of light than the red wavelength. (iv) It is soluble in water as well as petroleum ether. Which of the above statements is/are not correct?
17. Which pigment molecule forms the reaction centre in both photosystems?
18. Plant cells use sunlight to make their own food. Which structure allows plant cells to perform this function?
19. Who, after conducting experiments on purple and green sulphur bacteria, inferred that O2 evolved during photosynthesis comes from H2O not from CO2?
20. What is the gas we breath out that plants use for photosynthesis?
21. ..... is a stack of thylakoids
22. What is the main method used to separate the leaf pigments of any green plant?
23. Stromal lamellae lack-
24. If green plant cells are incubated with O18-labelled CO2, what molecule will become radioactive as the cells are exposed to light?
25. Which of the following is not a product of light reaction of photosynthesis?
26. Where do the light-dependent reactions occur?
27. Which part of the plant cell transforms light into glucose to use as food?
28. What pigment absorbs sunlight for photosynthesis?
29. Where does carbon dioxide and oxygen enter the leaf?
30. Where do the reactions of photosynthesis take place in autotrophs?
31. The raw materials or reactants of photosynthesis are
32. The first stage of photosynthesis captures energy from the ..... to break down water molecules
33. Z scheme show the transfer of electrons involving
34. What would happen to a plant if it can't undergo any photosynthesis?
35. Which process is considered to be a part of the carbon cycle?
36. All the reaction from the reduction of CO2 to the formation of sugar are included in
37. What provides the energy needed for photosynthesis?
38. Most of the oxygen in the Earth's atmosphere was produced by-
39. Who used prism, white light, green alga, Cladophora and aerobic bacteria and plotted the action spectra for photosynthesis
40. What are the main products of the light-dependent reactions?
41. The energy to cause a conformational change in F1 particle of ATPase comes directly from
42. Mesophyll cells contain .....
43. Photosynthesis and Cellular Respiration occurs in plants.
44. Pigment containing membranous extensions in some cyanobacteria are
45. What is the primary purpose of the light-dependent reactions in photosynthesis?
46. Reactions that consume CO2 take place in
47. Which of the following statements about the relationship between photosynthesis and cellular respiration is true?
48. Shane wants to studying factors that directly effect photosynthesis, what variable change below would best help Shane with his studies?
49. What does a taproot do?
50. Immediately after light becomes unavailable biosynthetic processes-
51. Which of the following is NOT a limiting factor for photosynthesis? (It is not needed for photosynthesis)
52. In positive gravitropism, which way would the root system grow?
53. Which one of the following is NOT the accessory pigment of photosynthesis?
54. As a research scientist, you measure the amount of ATP and NADPH consumed by the Calvin cycle in 1 hour. You find 30, 000 molecules of ATP consumed, but only 20, 000 molecules of NADPH. Where did the extra ATP molecules come from?
55. A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27$^\circ$C. The gas being collected is probably .....
56. An organism that eats both plants and animals are know as a
57. What is the major limiting factor for photosynthesis mentioned in the text?
58. In a plant cell, where are ATP synthase complexes located?
59. Compared to C3 plants, C4 plants
60. Which organisms are known to perform photosynthesis?
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