The term "dark reactions" was once used to describe the Calvin cycle. Explain why this term was used and suggest why this term is no longer used.
Q: Why is the nickname "dark reactions" not entirely correct for the chemical stage of photosynthesis?
A: Introduction - 6CO2 + 6H2O = C6H12O6 + 6O2 is a typical representation of photosynthesis. This…
Q: Define the Calvin cycle reactions ?
A: The Calvin cycle is considered as the process, which is used by plants and algae, which helps to fix…
Q: What are the products of light reactions that are used in the calvin cycle?
A: Step 1 Light is the visible part of the electromagnetic spectrum that consists of a stream of very…
Q: Why is the Calvin -Benson Cycle known as the carbon -fixatiion cycle?
A: Light independent reaction (Calvin cycle) makes sugar using carbon dioxide and the energy-containing…
Q: Please explain what happened in the reaction. How did H2SO4 and 3H2O reacted with the glucose?
A: Carbohydrates are polyhydroxy aldehydes or ketones or compounds that yield them on hydrolysis.…
Q: Which of the following does not participate in the Calvin cycle?
A: Photosynthesis is the process of the formation of glucose from carbon dioxide and water in the…
Q: Why does rubisco have such a low catalytic rate (that is, why is it so slow)?
A: Autotrophy is nothing but the ability to produce organic molecules using carbon. Autotrophs commonly…
Q: ATP Is Generated During Photosynthesis and ___________ .
A: The energy currency of the cell is ATP (Adenosine triphosphate) which is generated by using the…
Q: Outline the three phases of the Calvin cycle.
A: The intracellular anabolic process in which glucose is synthesized using simple inorganic substances…
Q: What is the evolutionary advantage to organisms that the Calvin cycle has a number of reactions in…
A: Photosynthesis is an important process used by photoautotrophs for the conversion of light energy…
Q: What are the names for the Calvin Cycle?
A: Calvin cycle occurs in photosynthesis and comprises of chemical reactions that convert carbon…
Q: Why is it true that the electrons from photolysis are absolutely required for photosynthesis?
A: Photosynthesis is a process in which photosynthetic autotrophs can obtain energy via light energy.…
Q: Why are the reactions of the Calvin cycle sometimes referred to as the dark reactions? Do they take…
A: The Calvin cycle are the chemical reactions that convert carbon dioxide and other compounds into…
Q: Explain whether the statement, "If an oxidation occurs in a reaction, it must be accompanied by a…
A: Introduction :- Redox reactions include a change in the oxidation state of the substrate. Loss of…
Q: Is it reasonable to list standard reduction potentials for the reactions of photosynthesis? Why or…
A: Photosynthesis causes water to be converted to oxygen by oxidation and NADP+ is reduced to NADPH.…
Q: Describe the processes involved in anabolic and catabolic reactions
A: Metabolism is the sum of anabolic and catabolic reactions. The metabolic rate is used to measure the…
Q: If we use ribulose-5-phosphate that has been labeled with 14C isotope at the Carbon 1 position in…
A: The Calvin cycle is called the carbon-fixation cycle reduces the carbondioxide to three carbon of…
Q: Identify the similarities and differences between the Krebs cycle and the Calvin cycle.
A: Cellular respiration occurs in all living organisms. It can be aerobic or anaerobic. The citric acid…
Q: The overall reaction for photosynthesis is 602 + C6H1206 → 6CO2 + 6H20
A: Photosynthesis is divided into two reactions light dependent and light independent reactions. Light…
Q: Describe the effect of photooxidation on the redox reactions summarized in the Z-scheme.
A: Photosynthesis is the process through which plants and some purple sulfur bacteria and cyanobacteria…
Q: Which of the following statements about the Calvin-Benson cycle is TRUE?
A: The photosynthesis involves two phases that are light dependent phase and light independent phase.…
Q: The reactions of the Calvin cycle are not directly dependent on light, and yet they usually do not…
A: Calvin cycle is the carbon fixation cycle that helps in synthesizing sugar by the help of carbon…
Q: What is known about the structure of photosynthetic reaction centers?
A: Photosynthetic reaction centres compromises of two branches of Co-factors that are made up of…
Q: Why is the Calvin cycle referred to as the dark reaction?
A: Plants prepare their own food with the help of Photosynthesis and it uses light energy from the sun…
Q: made at the end of the reduction phase are used in carbohydrate production while the remaining 10…
A: Statement 1 When one molecule of carbon dioxide is fixed, it reacts with RUBP to form 2 molecules of…
Q: Metabolic pathways frequently contain reactions with positive standard free-energy values, yet the…
A: The metabolic pathway is divided into the catabolic pathway (transform fuel into energy) and…
Q: The Calvin cycle reactions are sometimes called the “lightindependent reactions” or “dark reactions”…
A: In light-dependent processes, chlorophyll absorbs sunlight energy and converts it to stored chemical…
Q: H218O is added to a suspension of chloroplasts capable of photosynthesis.Where does the label appear…
A: Photosynthesis is a vital process in primary producers, plants. Plants use light energy and carbon…
Q: What fraction of the energy of 700- nm light absorbed by photosystem I is trapped as highenergy…
A: Photosystem I is part of the photosynthetic light reaction. It uses light energy as the source for…
Q: Briefly describe 3 general catalytic mechanisms
A: Enzymes are biological catalysts that minimize the amount of activation energy needed for a process…
Q: Explain how coenzymes connect the light-dependent reactionswith the Calvin–Benson cycle
A: Photosynthesis is the conversion of light energy into chemical energy by phototrophs, which is then…
Q: Suggest a reason why photosynthetic pigments readily absorb in the blue region of the visible…
A: Photosynthetic pigment i.e. chlorophyll which is an important pigment synthesize by the chloroplast…
Q: The Calvin cycle reactions that fix CO2 do not function in the dark. What are the likely reasons for…
A: The carbon cycle can be described as the series of reactions associated with fixing carbon dioxide…
Q: During which stage of the dark reaction or Calvin cycle is G3p produced?
A: Calvin cycle or C3 cycle or light independent reactions or dark reactions is defined as a set of…
Q: By what oxygen is not produced during photosynthesis?
A: Introduction: Photosynthesis is a process by which green plants and some bacteria make their own…
Q: The Calvin cycle begins when CO2 reacts with (a) phosphoenolpyruvate(b) glyceraldehyde-3-phosphate…
A: Introduction:- Carbon dioxide enters the inside of a leaf through pores called stomata and diffuses…
Q: In photosynthesis, what is encompassed by the term “light reactions”?
A: The conversion of light energy/sunlight into chemical energy by green plants and other creatures is…
Q: Explain and show why phosphoenolpyruvate is a highenergy compound.
A: Phosphoenolpyruvate : It is the ester derived from the enol of pyruvate and phosphate. It exists an…
Q: For every three molecules of CO2 that are incorporated into carbohydrate during the Calvin cycle…
A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…
Q: What effect would you expect dinitrophenol to have on photosynthesis?
A: Dinitrophenol (DNP) is an organic compound that is used in the manufacture of fertilizers, dyes, and…
Q: How many different types of reactions (e.g., phosphorylation, isomerization) occur in the Calvin…
A: The Calvin cycle is a light-independent reaction in photosynthesis in which plants and algae reduce…
Q: What is blackbody radiation, and how can photosyntheticorganisms near hydrothermal vents take…
A: Photosynthesis is a process, in which carbohydrate is synthesized from the transportation of the…
Q: What is the main final product of the calvin cycle?How many turns of the calvin cycle are needed to…
A: Plants are photosynthetic and require sunlight to produce their food. During the daytime, plants…
Q: Why is the Calvin Cycle referred to as the dark reactions, or light-independent reactions?
A: Introduction Calvin Cycle:- The Calvin cycle is part of photosynthesis, The cycle of chemical…
Q: What does the Calvin-Benson cycle produce? What molecule is "fixed" in the reactions of the Calvin…
A: Note :- Since you have asked multiple questions im only answering the ist 3 as per bartleby…
Step by step
Solved in 2 steps
- Why is the nickname “dark reactions” not entirely correct for the chemical stage of photosynthesis?The reactions of the Calvin cycle are not directly dependent on light, and yet they usuallydo not occur at night. Why?Describe the effect of photooxidation on the redox reactions summarized in the Z-scheme.
- During which stage of the dark reaction or Calvin cycle is G3p produced?What are the names for the Calvin Cycle?Explain why both ATP and NADPH are required for the operation of the Calvin-Benson-Bassham cycle, and why these two reactants are required in different amounts. PLEASE READ THE QUESTION CAREFULLY (PLEASE EXPLAIN)
- Ozone in the lower atmosphere is a pollutant that can form by the following reaction involving the oxidation of unburned hydrocarbons:CH4(g) + 8 O2(g)-------->CO2(g) + 2 H2O(g) + 4 O3(g)Use the standard free energies of formation to determine ΔG°rxn for this reaction at 25 °C.Please explain to me the part that asks how this reactions are able to proceed without additional energy.Match the term to the correct definition: Loss of electron(s) A) reduction B) not related to oxidation or reduction C) oxidation Gain of electron(s) A) reduction B)not related to oxidation or reduction C) oxidation Increase in oxidation number A) reduction B) not related to oxidation or reduction C)oxidation Decrease in oxidation number A) reduction B)not related to oxidation or reduction C)oxidation Loss of a proton A)reduction B)not related to reduction or oxidation C)oxidation Loss of a neutron A)reduction B)not related to oxidation or reduction C)oxidation Gain of a proton A)reduction B)not related to reduction or oxidation C)oxidation Gain of a neutron A)reduction B)not related to oxidation or reduction C)oxidation