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QuizMoz offers one of the Internet's largest collection of quizzes for you to tease your brain and pit your wits against the experienced QuizMoz quiz masters. Go ahead and find out what you know about yourself and the world around you. Best of luck!! Coverage : The Photosynthesis Quiz III tests your knowledge about carbon fixation and the photosystems involved in the light-independent reactions of photosynthesis.  Photosynthesis III Discussion Forum 1.  What do the light-independent reactions require for synthesis? a. CO2 for carbon and oxygen b. ATP for reaction energy c. Darkness d. NADPH for reducing power e. A,B & D Last improved on 10/29/2012 at 4:10:39 AM by bdsn Please provide appropriate updations Ques What do the light-independent reactions require for synthesis? a. b. c. d. e. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 2.  Before CO2 can be used in synthesis by the light-independent reactions it must: a. Diffuse into air spaces in the leaf b. Diffuse into the stroma c. Become "fixed" d. Attach to ribulose biphosphate Please provide appropriate updations Ques Before CO2 can be used in synthesis by the light-independent reactions it must: a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 3.  Which of the following occur in one cycle of the Calvin-Benson cycle? a. Six CO2 molecules are fixed b. Only two ATP are used c. Only four ATP are used d. One six-carbon sugar phosphate is formed Please provide appropriate updations Ques Which of the following occur in one cycle of the Calvin-Benson cycle? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 4.  Which of the following are intermediates in the Calvin-Benson cycle? a. Nitroglycerate (NGA) b. Nitroglyceraldehyde (NGAL) c. Phosphoglycerate (PGA) d. Phosphoglyceraldehyde (PGAL) Please provide appropriate updations Ques Which of the following are intermediates in the Calvin-Benson cycle? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 5.  How much energy and reducing power is needed for one cycle of the Calvin-Benson cycle? a. 12 ATP and 12 NADPH b. 12 ATP and 18 NADPH c. 18 ATP and 12 NADPH d. 18 ATP and 18 NADPH Please provide appropriate updations Ques How much energy and reducing power is needed for one cycle of the Calvin-Benson cycle? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 6.  What are the final storage form(s) of the sugar phosphates formed in the light-independent reactions? a. Starch b. Glycogen c. Sucrose d. Lipid Please provide appropriate updations Ques What are the final storage form(s) of the sugar phosphates formed in the light-independent reactions? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 7.  Light-independent reactions are also known as "dark" reactions because they can only occur at night. a. True b. False Please provide appropriate updations Ques Light-independent reactions are also known as "dark" reactions because they can only occur at night. a. b. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 8.  In C4 plants, instead of the first stable intermediate being phosphoglycerate (PGA) it is: a. Citrate b. Oxalocitrate c. Ribulose biphosphate d. Oxaloacetate Please provide appropriate updations Ques In C4 plants, instead of the first stable intermediate being phosphoglycerate (PGA) it is: a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 9.  Oxygen can attach to ribulose biphosphate (RuBP) when there is low CO2 in the cells which results in slower growth for the plant. a. True b. False Please provide appropriate updations Ques Oxygen can attach to ribulose biphosphate (RuBP) when there is low CO2 in the cells which results in slower growth for the plant. a. b. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 10.  What are succulents which avoid losing water in arid environments by only opening their stomata and fixing CO2 during the night? a. CAM plants b. C3 plants c. C4 plants d. C5 plants Please provide appropriate updations Ques What are succulents which avoid losing water in arid environments by only opening their stomata and fixing CO2 during the night? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 11.  Which of the following type of plant metabolism would lead to the fastest plant growth? a. CAM b. C3 c. C4 d. It depends on environmental conditions Please provide appropriate updations Ques Which of the following type of plant metabolism would lead to the fastest plant growth? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 12.  How do C4 plants maintain adequate CO2 even when their stomata are tinier than those of C3 plants? a. They switch from fixing CO2 to fixing acetate b. They change pigment type c. They fix CO2 twice instead of once d. They have two types of photosynthetic cells Please provide appropriate updations Ques How do C4 plants maintain adequate CO2 even when their stomata are tinier than those of C3 plants? a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. Think you know more about this quiz!   Please enter your Name and what you would like to tell everyone about Photosynthesis III  Name: Think you know more about Photosynthesis III and would like others to know too? Whether its a great fact, a joke, a personal experience or an interesting anecdote, please share it with all the human beings on planet earth. Your contribution will help keep QuizMoz a free site for all.    (Optional)  (average submission size - 5 to 10 lines) Photosynthesis III Discussion Forum Know the Latest News about Photosynthesis III! What others think about Photosynthesis III By: Kilo on Jan 10, 2011    Good job guys the quiz is great By: John Stanleymeyer on Mar 25, 2009    I find it easy 'cause I took up a botany class. Fortunately! By: jane on Feb 20, 2009    Photosynthesis is crazy..... so complicating By: Nat on Oct 8, 2008    9. Different end products occur under different conditions. When light intensity and CO2 concentrations are high – sugars and starch are formed. When they are low, amino acids are formed. 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