In plants, under what solution conditions are Calvin cycle and gluconeogenesis enzymes most active? Low pH, low [Mg2+] 2 Low pH, high [Mg2+] 3 High pH, low [Mg2+] 4 High pH, high [Mg2+]
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![In plants, under what solution conditions are Calvin
cycle and gluconeogenesis enzymes most active?
1
Low pH, low [Mg2+]
Low pH, high [Mg2+]
2
High pH, low [Mg2+]
4
High pH, high [Mg2+]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa44093f9-865e-42e2-9761-7238b47b32ab%2Ff34bba54-a8f8-4308-a28a-a57513743eef%2Fohsuc4_processed.jpeg&w=3840&q=75)
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- using a 14CO2 fixation assimilation method,a plant is found to be fixing carbon at a rate of 140mgh-1 .dm-2 leaf area in the sunlight. In darkness the same plant is losing 30mgh-1.dm-2 . Calculate the photosynthetic capacity of the plant and state with reasons to which photosynthetic type the plant belongsWhich of the following statements is FALSE? Group of answer choices: - Plastoquinone has a higher reduction potential than plastocyanin. - Water is the ultimate electron donor. - Proton gradient is created in the light phase of photosynthesis wherein the pH in the stroma is higher than in the lumen. - Photosystem II has chlorophylls in its reaction center that has maximum light absorption at 680 nm.The following image is a schematic of the metabolic processes occurring in a plant contained in a closed container. A=Light Dependent reactions B=Glycolysis C=Light Independent Reactions D=Kreb's cycle E=electron transport chain 2a) Use the figure above to explain the conditions in which the oxygen concentration remains constant in the container. b) 2-carboxyarabinitol-1,5-bisphosphate (CABP) is an inhibitor of the enzyme rubisco. Which pathway would this affect most?
- In C3 plants CO2 is first incorporated into __________, whereas in C4 and CAM plants the CO2 is first incorporated into __________, and subsequently put into the Calvin cycle by Rubisco. a. 3-phosphoglycerate; oxaloacetate b. dihydroxyacetone phosphate; malate c. 3-phosphoglycerate; malate d. glyceraldehyde-3- phosphate; erythrose-4-phosphateThe output of the Calvin cycle is G3P (Glyceraldehyde 3-p). The calvin cycle makes 6 of these , but only one leaves to be used by the plant. What happens to the other 5, and why is this necessary?Imagine a leaf in bright light but an atmosphere with no carbon dioxide. Would RuBP carboxylase be functioning? Would the NADP be in the reduced or oxidized form?
- An organism growing on a 12 carbon primary alcohol would employ the following order of pathways and processes to produce ribose: a. Calvin Cycle, Kreb’s Cycle, Glycolysis, Pentose Phosphate Pathway b. Terminal oxidation to the corresponding 12 carbon carboxylic acid, Glycolysis, Pentose Phosphate Pathway c. Terminal oxidation to the corresponding 12 carbon carboxylic acid, beta oxidation, Kreb’s Cycle, Gluconeogenesis, Pentose Phosphate Pathway d. Calvin Cycle, Gluconeogenesis, Pentose Phosphate Pathway Hydrogen sulfide and ammonia are not used by many bacteria as sulfur and nitrogen sources because these compounds are too __________, a. insoluble. b. toxic. c. reduced. d. expensive. Obligate anaerobes would be found growing a. throughout a tube of thioglycolate medium. b. only at the very top of a tube of thioglycolate medium. c. only at the bottom of a tube of thioglycolate medium.…An organism growing on a 12 carbon primary alcohol would employ the following order of pathways and processes to produce ribose: a. Calvin Cycle, Kreb’s Cycle, Glycolysis, Pentose Phosphate Pathway b. Terminal oxidation to the corresponding 12 carbon carboxylic acid, Glycolysis, Pentose Phosphate Pathway c. Terminal oxidation to the corresponding 12 carbon carboxylic acid, beta oxidation, Kreb’s Cycle, Gluconeogenesis, Pentose Phosphate Pathway d. Calvin Cycle, Gluconeogenesis, Pentose Phosphate PathwayWhich of the following is not involved in cyclic cyclic photophosphorylation? Group of answer choices: cytochrome bf complex plastocyanin ferredoxin P680
- The CAM pathway ___. involves only the Calvin-Benson cycle involves only the C4 cycle is used by plants in humid regions is also known as phosphorylation needs day and night for completionNitrogen-fixing bacteria on the roots of some plants can consume as much as 20% of the ATP produced by their host— consumption that does not seem very beneficial to the plant. Explain why this loss of valuable resources is tolerated and what the bacteria are doing with the ATP.Chloroplast ATP synthase contains 14 c subunits. How many protons must be translocated to the thylakoid lumen to support the synthesis of one ATP?
