IL. Ecosystems derive enery from b. producers and primary consumers plants d. au
ID: 209821 • Letter: I
Question
IL. Ecosystems derive enery from b. producers and primary consumers plants d. autotrophs e· consumers 42. When oxygen is released as a result of photosynthesis, t s a direct by product of a. b. splitting water molecule c the electron transfer system of photosystem e. oxidation of NADP d. the electron transfer system of photosystem 43. In its mechanism, photophosphorylation is most similar to a. oxidative phosphorylation in ceillular respiration b. substrate-level phosphorylation in glycolysis the Calvin cycle d. reduction of NADP+ e. substrate level ATP synthesis 44. Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle? a. CO2 and glucose b. H20 and 02 c, ADP,p, and NADP+ d. NADH and FADH2 e. ATP and NADPH 45. What is the primary function of the Calvin cycle? a. use NADPH to release carbon dioxide b. split water and release oxygen c. synthesize simple sugars from carbon dioxide d. transport RuBP out of the chioroplast e. synthesize various organic molecules from carbon dioxide Match the stage of photosynthesis with the best description. (1 pt ea) 46, light reactions 47. PSI and PSII 48. C3 49. C4 50, CAMLJ A. Relies on RuBP in Calvin Cycle B. linked pathways to capture more sun energy C. Day/night separation of CO2 fixation D. Makes O2, ATP and NADPH E. Makes 4 carbon organic acid for CO2 fixationExplanation / Answer
Answer
41. d. autotrophs (They are energy producers)
42. b. splitting water molecule (Photolysis of water takes place that generates oxygen)
43. a. Oxidative phosphorylation in cellular respiration (Both generate the ATP in similar way)
44. e. ATP and NADPH (Light reaction of photosynthesis produces ATP, NADPH and Oxygen)
45. c. synthesis of simple sugars from carbon dioxide (Fixes CO2 and synthesis sugar)
46. D (Light reaction of photosynthesis produces ATP, NADPH and Oxygen)
47. B (transposrt electrons from PSII to PSI)
48. A (Operates the calvin cycle with the help of RuBP)
49. E (Fist molecule synthesise is 4 carbon molecule)
50. C ( They have the day and night separation)