sure of the sugar G3P? a. Light energy directly provides energy to RuBP and CO2, which produce G3P in the Calvin cycle. b. Light energy directly provides energy to ATP synthase, which produces ATP during the light reactions. c. Light energy energizes electrons to make ATP and NADPH, which provide energy to produce G3P in the Calvin cycle.

sure of the sugar G3P? a. Light energy directly provides energy to RuBP and CO2, which produce G3P in the Calvin cycle. b. Light energy directly provides energy to ATP synthase, which produces ATP during the light reactions. c. Light energy energizes electrons to make ATP and NADPH, which provide energy to produce G3P in the Calvin cycle.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter6: Where It Starts-photosynthesis

Section: Chapter Questions

Problem 15SA: Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2...

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In ________, electrons that have been energized by light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) C4 pathways (e) photophosphorylation
What is the molecule that leaves the Calvin cycle to be converted into glucose? a. ADP b. G3P c. RuBP d. 3-PGA
Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2 fixation b. converts light to chemical energy ____ autotroph c. self-feeder ____ ATP forms NADPH does not d. electrons cycle back to photosystem ____ photorespiration e. problem in C3 plants ____ photosynthesis f. Calvin-Benson cycle product ____ pigment g. water molecules split ____ photolysis in photosynthesis h. rubisco function
1. Which of the following statements is most accurate? a. The Calvin cycle is a repeating process that uses carbon dioxide, ATP, and NADPH molecules to allow the cell to produce one glucose molecule. b. Each turn of the Calvin cycle is designed to use a glucose molecule to produce RuBP, 3-PGA, 3-G3P, ATP and NADPH molecules. c. The Calvin cycle is a continuous process that utilizes rubisco molecules to produce RuBP molecules which can be directly converted to glucose molecules for long term energy storage. 2. How many glucose molecules are produced for every turn of the Calvin cycle? a. 0 b. 1 c. 2 d. 3 e. 6 f. 12
1. Which of the following does NOT happen during the light-dependent reactions of photosynthesis?A. ATP is producedB. Oxygen is producedC. NADPH is producedD. Glucose is produced 2. The overall source of energy for photosynthesis is:A. energy released when water is split, and oxygen is producedB. energy from NADPHC. light energy from the sun D. energy from ATP 3. John Dela Cruz grew algae in the presence of a poison that stops the lightindependent reactions of photosynthesis. As a result, which molecules will the light-dependent reactions stop producing?A. ADP and NADP+B. ADP and NADPHC. ATP and NADP+D. ATP and NADPH
1. During the light dependent reaction, the molecules within the membrane absorb light energy 2. high energy compounds light dependent portion of photosynthesis 3. an electron which is released by a process called and are produced in the in the thylakoid enters where it is energized and used to convert energy. 4. protons travel through located in the thylakoid membrane in a high energy compound. a process known as 5. The three stages of the light independent reaction are to produce and 6. The most abundant protein on earth is 7. You would need molecules of RuBp in order to create 1 molecule of glucose
2. Sugar is made in the chloroplast through CO2 assimilation by the Calvin cycle. This cycle involves 11 enzymes and produces carbohydrates from atmospheric CO2 using NADPH and ATP supplied by the light reactions. Chloroplast phosphoglycerate kinase (cpPGK) catalyzes the conversion of 3-phosphoglycerate to 1,3-bisphosphoglycerate using ATP (step #2). CHI-O-PO C=0 Rate of CO₂ assimilation (μmol CO₂ m² s¯¹) H-C-OH H-C-OH 6 ADP+6P, Transketolase CH,-O-PO 6 Ribulose-1,5-bisphosphate 6 ATP 40 H C=O H-C-OH CH,-O-PO 10 Glyceraldehyde-3-phosphate 30 20 6C0₂ 10 Ribose phosphate isomerase Phosphoribulokinase To cytoplasm C=O H-C-OH CH,-o-PO, 2 Glyceraldehyde-3-phosphate CH,-O-PO2 HO-C-COO C=0 H-C-OH CH,-O-PO 6 Carboxylase intermediate Ribulose bisphosphate carboxylase 1 CALVIN CYCLE H C=O H-C-OH CH,-O-PO 2 12 Glyceraldehyde-3-phosphate Sugars Glyceraldehyde-3-phosphate dehydrogenase (3) 04 * 12 P PEA 400 800 pCi (μmol mol ¹) 9 C=0 H-C-OH Phosphoglycerate kinase 2 CH,-O-PO 12 3-Phosphoglycerate…
46. An organism that cannot produce its own food is called a photoautotroph. a true b false 47. The one thing that all photosynthetic organisms have in common is chloroplasts. a true b false 48. The organelle that is unique to eukaryotic photoautotrophs is the chromoplast. a true false 49. An electron that has gained energy from light may transfer that energy to a neighbouring electron, and then return to its ground state. a true b false 50. The structure that connects stacks of thylakoids is the grana. a true false 51. Light is a form of energy that travels in wave packets called protons. a true b false
1. Which of the following causes the formation of ATP during the light dependent reaction? A. It is caused by the electrochemical gradient created by the splitting or water molecules B. It is caused by the increase or oxygen gas in the system C. It is created when the electrons allow the attachment of an inorganic phosphate to ADP D. The photons energize the activation of the ATP synthase, thus combining an inorganic phosphate to ADP. 2. What is the purpose of splitting water in photosystem II? A. To create an electrochemical gradient in the thylakoid B. To create oxygen molecules C. To make the environment acidic D. To provide free hydrogen ions that would soon attach to inorganic phosphates in ATP synthesis
1.Which of the following best describes how light energy is "captured" during the process of photosynthesis? a. The correct photon of light "excites" an electron in a chlorophyll molecule. b. Light heats up the stroma in the center of the chloroplast which causes enzymes to convert CO2 into glucose. c. Photons of light cause H+ to move through the thylakoid membrane, creating a hydrogen ion gradient. 2. What best explains what happens to the electrons that are excited out of chlorophyll molecules during the process of photosynthesis? a.They are pumped across the thylakoid membrane in the ETC of photosynthesis. b. They cause electrons in NADPH to get "excited" and form new bonds in ATP. c. They are captured and move through an ETC, creating ATP and ultimately being captured by NADPH. d. They fall back into the chlorophyll molecule, emitting ATP as they fall.
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.
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