Which of the following does not occur during the Calvin cycle?(A) carbon fixation(B) oxidation of NADPH(C) release of oxygen(D) regeneration of the CO2 acceptor
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Which of the following does not occur during the Calvin cycle?
(A) carbon fixation
(B) oxidation of NADPH
(C) release of oxygen
(D) regeneration of the CO2 acceptor
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- Which of the following terms regarding the Calvin cycle are mismatched? a.) rubisco and ATP production b.) PGAL and rearranged from glucose c.) carbon fixation and stromaIn the diagram of photosynthesis shown here, fill in each blank with the appropriate term: (a) Sunlight; (b) CO2; (c) Oxygen; (d) H2O; (e) ATP and NADPH; (f) ADP and NADP+; (g) Sugar; (h) Light reactions; (i) Calvin cycle.A decrease in entropy occurs during the CO2 uptake phase of the Calvin cycle, as freely moving CO2 molecules become fixed into a carbon skeleton. How can this occur without direct participation by NADPH and/or ATP?
- In mechanism, photophosphorylation is most similar to(A) substrate-level phosphorylation in glycolysis.(B) oxidative phosphorylation in cellular respiration.(C) carbon fixation.(D) reduction of NADP+.If 30 molecules of CO2 enter the Calvin Cycle,a. How many molecules of phosphoglycerate (PGA) will be produced? b. How many molecules of glyceraldehyde phosphate (PGAL) leave the cycle? c. How many molecules of ribulose bisphosphate (RuBP) will be produced? d. How many molecules of ATP will be utilized?Which of the following questions is most relevant to understanding the Calvin cycle? A How does chlorophyll capture light? B How is ATP used in the formation of 3-carbon carbohydrates? C How is NADP+ reduced to NADPH? D How is ATP produced in chemiosmosis?
- The Calvin cycle begins when CO2 reacts with (a) phosphoenolpyruvate(b) glyceraldehyde-3-phosphate (c) ribulose bisphosphate (d) oxaloacetate (e) phosphoglycerate1. If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited? (A) Movement of oxygen into a cell (B) Movement of water through aquaporins (C) Passage of a solute against its concentration gradient (D) Facilitated diffusion of a permeable substance 2. Which of the following questions is most relevant to understanding the Calvin cycle? (A) How does chlorophyll capture light? (B) How is ATP used in the formation of 3-carbon carbohydrates? (C) How is NADP+ reduced to NADPH? (D) How is ATP produced in chemiosmosis? OXYGEN CONCENTRATION IN THE WATER OF A LAKE Hours of Darkness 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 24:00 02:00 04:00 06:00 Time of Day 3. What most likely causes the trends in oxygen concentration shown in the graph above? (A) The water becomes colder at night and thus holds more oxygen. (B) Respiration in most organisms increases at night. (C) More organisms are respiring at night than during the…Which correctly lists the inputs of the Calvin cycle? a) CO2, H2O, ATP, NADPHb) Glucose, ATPc) H2O, photons d) Glyceraldehyde 3-phosphate, ADP, NADP+e) ATP, NADH, FADH2, CO2
- Typically the CO2 necessary for photosynthesis enters through the stomata of the plant leaves suppose petroleum jelly was used to coat the leaves out of this tomato blocked or closed a) what effect will this have on the light reactions in these leaf cells b) what effect will this have on the Calvin cycle in these leaf cellshe Calvin Cycle represents the major pathway by which photosynthetic organisms gain carbon. Which of the following statements about the Calvin Cycle is correct? 1. NADPH is consumed during the reduction phase of the cycle. 2. Each turn of the cycle generates one extra molecule of glyceraldehyde 3-Phosphate (G3P). 3. The cycle would stop if ribulse-1,5-bisphosphate (RuBP) does not get regenerated. 4. The Calvin Cycle is often referred to as the “Dark Reactions” because it operates continually in the dark. A. 1,2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correctPlants have evolved by developing mechanisms that promote entry of CO, into the Calvin Cycle (CC) to limit photorespiration when environmental conditions tend to favor the latter. This is because photorespiration 1) is energetically inefficient (consuming more ATP than the CC alone) and 2) it does not produce any sugars that can be "fed" into cellular respiration to produce lots more ATP. A) Under what environmental conditions does photorespiration "outcompete" that of the CC? Specifically, what mechanism is responsible for committing the cell to photorespiration and what type of plant does not have any "safeguards" to ensure that the CC is performed rather than photorespiration? B) Describe the mechanisms employed by two types of plants to minimize photorespiration and ensure that the CC is carried out even when environmental conditions are not in their favor. Be sure to identify 1) the type of plant, 2) its natural environment and how it affects the plant's ability to perform the CC,…