SZ. The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Which of the following statements explains why not? a. The Calvin cycle depends on the presence of light and the products from light reaction. b. Carbon dioxide is not available at night. c. It is too cold at night for reactions to take place. d. Most plants do not make the 4-carbon compounds that would be needed for the Calvin cycle to

SZ. The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Which of the following statements explains why not? a. The Calvin cycle depends on the presence of light and the products from light reaction. b. Carbon dioxide is not available at night. c. It is too cold at night for reactions to take place. d. Most plants do not make the 4-carbon compounds that would be needed for the Calvin cycle to

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter8: Photosynthesis

Section: Chapter Questions

Problem 4TYK

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2c. 2d. We know that most pigments are found in the chloroplasts of eukaryotic cells. Specifically WHERE is chlorophyll located in the chloroplast? Some PROKARYOTES are photosynthetic. Predict where the pigments might be located in these cells. Activity #3. Determining optimal wavelength of light used during spinach leaf photosynthesis Note: You'll need to read through this lab exercise and your textbook to answer these questions. Answer choices for questions #1-4 (Each answer can be used more than ADP ATP CO₂ Glucose H₂O Light NADP+ NADPH 0₂ 3. Which of the above are directly required by the light reactions? Hint: See the photosynthesis chapter in your textbook. 4. Which of the above are directly produced by the light reactions? 5. Which of the above are directly required by the Calvin cycle? 6. Which of the above are directly produced by the Calvin cycle? 11 7. (a) In our experiment, what will cause the leaf discs to float? (b) The greater the number of floating discs, the (greater…
1. The reactions of the Calvin Cycle are not directly dependent on light, and yet they usually do not occur at night. Why?
66. The graph in figure 11 represents the absorption spectrum of chlorophyll. The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum? a. yellow and orange red b. violet blue and green C. orange red and violet blue d. green and yellow e. orange and red Figure
43. Where do electrons from Photosystem I go after they get excited by light? Group of answer choices a. The high-energy electron travels down a short second leg of the electron transport chain. At the end of the chain, the electron is passed to NADP+ to make NADPH. b.They travel down a second electron transport chain and are donated to oxygen which then bonds to hydrogen ions to form water. c. The high-energy electron travels down a short second leg of the electron transport chain and they are donated to ADP, which is then converted to ATP. d. They remain excited and then they travel to Photosystem II where they get even more excited until they spontaneously combust.
1. What is the overall purpose of photosynthesis? 2. Write the overall equation for photosynthesis. a. Light Photosynthesis Discussion Questions 3. Fill in the information for the following figure: Chloroplast Using arrows, show what is being oxidized and what is being reduced in the overall equation. th Cupright 2008 Pearson Education, ine, publishing as Pea Light Reactions B Benjamin Cummings ♫ E ADP P Ev G C Calvin Cycle D ... tvill In
28. What happens during the carbon fixation of the Calvin Cycle? Group of answer choices A. The enzyme Rubisco attaches to CO2 to RuBP causing the formation of molecules of 3-phosphoglycerate. B. Energy from ATP and electron from NADPH are used to reduce 3-phosphoglycerate to form G3P molecules (which can be used to form other organic molecules such as glucose). C. Oxygen is produced through this process. D. The remaining G3P molecules that have not exited the cycle are used to re-from RUBP through a series of chemical reactions so that the Calvin Cycle can continue.
11. Identify the chemical that gets oxidized in the following reaction: PEP + NAD+ → Pyruvate + NADH + H+ a. Oxygen (b. NAD+ c. NADH d. PEP e. Pyruvic Acid 12. In which order do the stages of photosynthesis occur? a light absorption, light reactions, Calvin cycle b. light reactions, light absorption, Calvin cycle c. Calvin cycle, dark reactions, light reaction, light d. glycolysis, pyruvate oxidation, citric acid cycle, electron transport chain 13. Which of the following does not cause a net release of energy? a. ADP combines with inorganic phosphate to form ATP b. ATP releases inorganic phosphate to form ADP c. Loss of hydrogen from reduced NAD d. Oxidation of reduced FAD A summary diagram of photosynthesis is shown. Use this diagram to answer Questions 14 and 15. 14. Which molecule represents ATP? a. A b. B C. C d. D Water Light-dependent reactions c. Oxygen d. Glucose C. A. Reduced NADP NADP D. 15. Which of the following do you think compound C is? a. CO2 b. ATP B. Light-independent…
d) In the presence of sunlight, an electrochemical gradient is generated between two of the spaces within the chloroplast. 1.Describe what happens when a photon of light energy hits a molecule of chlorophyl. 2. What is meant by the term electrochemical gradient? 3.What role does the photosynthetic electron transport chain play in the generation of the electrochemical gradient? 4. Two chemical reactions also contribute to the generation of the electrochemical gradient. What are the reactions, where do they occur, and why do these factors affect the gradient? 5. The electrochemical gradient can be utilised by ATP synthase to generate ATP - explain how the location and structure of ATP synthase enable it to perform this function. e) The light reactions of photosynthesis generate ATP and NADPH for use in the dark reactions (i.e., the Calvin cycle). Why are they needed?
18. Choose the INCORRECT statement about Calvin cycle: A. is an example of a catabolic process. B. it produces GTP. C. it begins with carbon fixation. D. it regenerate RUBP E. it utilizes NADPH and ATP
59. Which of the following statements describes a relationship between photosystem II and photosystem I? Group of answer choices a. Photosystem II produces ATP and NADPH that are used by photosystem I. b. Photosystem I produces ATP and NADPH that are used by photosystem II. c. The de-energized electron from photosystem II fills the void left by the newly energized electron from photosystem I. d. The de-energized electron from photosystem I fills the void left by the newly energized electron from photosystem II.
1. What are the process of light-dependent reaction? Use the pyramid diorama in outlining the process of light-dependent reaction. 2. What are the process of Calvin cycle? Use the pyramid diorama in outlining the process of Calvin cycle.
The Calvin Cycle is also called A. the light independent reactions B. the light dependent reactions