The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase.
What are the three steps of the Calvin cycle in order?
Reactions of the Calvin cycle
The Calvin cycle reactions can be divided into three main stages: carbon fixation, reduction, and regeneration of the starting molecule.
What are the stages of the Calvin cycle quizlet?
What are the three phases or steps of the Calvin Cycle? Fixation, reduction, and regeneration.
Which of the following occurs during the Calvin cycle?
During the Calvin cycle of photosynthesis, NADPH produced in the light reactions is oxidized, and carbon is reduced using the electrons from NADPH. The reduction of carbon generates glyceraldehyde 3-phosphate (G3P) which will be used to synthesize glucose. Therefore, the correct answer is e.
Which of the following reactions occurs during the Calvin cycle quizlet?
Which of the following occurs during the Calvin cycle of photosynthesis? Carbon dioxide is converted to chemicals that can be used to make sugars. You just studied 50 terms!
What are the 3 product of Calvin cycle?
Products of Calvin Cycle
The products formed after a single turn of the Calvin cycle are 3 ADP, 2 glyceraldehyde-3-phosphate (G3P) molecules, and 2 NADP+.
What happens in the first phase of the Calvin cycle?
During the first phase of the Calvin cycle, carbon fixation occurs. The carbon dioxide is combined with ribulose 1,5-bisphosphate to form two 3-phosphoglycerate molecules (3-PG). The enzyme that catalyzes this specific reaction is ribulose bisphosphate carboxylase (RuBisCO).
What are the 4 steps of Calvin cycle?
The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH, chemical compounds which contain the energy plants have captured from sunlight.
What are the 5 steps in the Calvin cycle?
- Carbon fixation. A CO2start text, C, O, end text, start subscript, 2, end subscript molecule combines with a five-carbon acceptor molecule, ribulose-1,5-bisphosphate (RuBP). …
- Reduction. …
- Regeneration.
Which of the following is the second step of the Calvin cycle quizlet?
Reduction is the second step of the Calvin cycle where NADPH is needed. NADPH is a reducing agent that is used in the Calvin cycle that transfers electrons that allow carbohydrates to be synthesized from carbon dioxide.
What are the inputs to the Calvin cycle?
The inputs into the Calvin cycle are NADPH, ATP, and CO2. 3. The products of the Calvin cycle are NADP+, ADP, and a sugar.
What happens to CO2 in the Calvin cycle?
In the Calvin cycle, carbon dioxide molecules (CO2) are combined with each other and with the electrons and Hydrogen ions from NADPH to form glucose (C6H12O6).
What do light reactions supply the Calvin cycle with?
The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the cycle provides water and electrons to the light reactions.
What is the first process of photosynthesis?
Photosynthesis is a two stage process. The first process is the Light Dependent Process (Light Reactions), requires the direct energy of light to make energy carrier molecules that are used in the second process.
What occurs in the process of photosynthesis quizlet?
In the process of photosynthesis, plants convert the energy of sunlight into chemical energy stored in the bonds of carbohydrates. … Photosynthesis uses the energy of sunlight to convert water and carbon dioxide (reactants) into high-energy sugars and oxygen (products).
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
H2O → NADPH → Calvin cycle.
How does Calvin cycle begin?
In fixation, the first stage of the Calvin cycle, light-independent reactions are initiated; CO2 is fixed from an inorganic to an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P; then ATP and NADPH are converted to ADP and NADP+, respectively.
What are the products of the Calvin cycle quizlet?
The product of the Calvin cycle is a triose-phosphate sugar that is either exported from the chloroplast or used to regenerate RUBP.
What is the primary product of Calvin cycle?
The primary product of the Calvin cycle is glyceraldehyde three phosphate or G3P.
What is the second phase of the Calvin cycle?
Reduction. In the second stage of the Calvin cycle, the 3-PGA molecules created through carbon fixation are converted into molecules of a simple sugar – glyceraldehyde-3 phosphate (G3P). This stage uses energy from ATP and NADPH created in the light-dependent reactions of photosynthesis.
What happens during the first phase of the Calvin cycle quizlet?
Light-dependent reactions and the Calvin Cycle. … The first stage of photosynthesis is called the light reactions. During this stage, light is absorbed and transformed to chemical energy in the bonds of NADPH and ATP. Describe the chloroplast and its role in photosynthesis.
What are the main steps during Calvin cycle Class 11?
The Calvin cycle can be described under three stages: carboxylation, reduction and regeneration.
What are the four main steps of photosynthesis?
- Absorption of light. The first step in photosynthesis is the absorption of light by chlorophylls that are attached to the proteins in the thylakoids of chloroplasts. …
- Electron Transfer. …
- Generation of ATP. …
- Carbon Fixation.
What are the Calvin cycle reactants?
The reactants of the Calvin cycle are CO2 from the air and NADPH and ATP from the light reactions. Light reactions produce NADPH and ATP which is why the Calvin cycle is so dependent on the light reactions.
What is cyclic reaction?
1. Cyclic Photophosphorylation is a process of photophosphorylation in which an electron expelled by the excited photocentre is returned back to it after passing through a series of electron carriers. ATP is formed when electrons pass Ferredoxin to PQ and from PQ to the Cytochrome system.
Where does the Calvin cycle occur quizlet?
Where does the Calvin Cycle occur? The Calvin Cycle occurs in the stroma, whereas the light reactions occur in the thylakoids.
Which compound is required for the carboxylation step of the Calvin cycle?
The carboxylation step of the Calvin cycle is where carbon dioxide is added to the five carbon molecule. Refer to page 157,158 in your book. The 5-carbon sugar is called ribulose 1,5-biphosphate (RuBP) and is catalyzed by the enzyme ribulose biphosphate carboxylase oxygenase (rubisco).
What are the inputs and outputs of the Calvin cycle quizlet?
The major inputs of the Calvin cycle are CO2 (from the atmosphere) and ATP and NADPH (from the photosynthetic electron transport chain). The major outputs of the Calvin cycle are ADP, NADP+, and carbohydrates (triose phosphates). What are the three major steps in the Calvin cycle and the role of the enzyme rubisco?
What stage of cellular respiration is anaerobic 2 points?
Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. Glycolysis is an anaerobic process. The other two stages are aerobic processes.
Where do Calvin cycle reactions occur?
The Calvin cycle, Calvin–Benson–Bassham (CBB) cycle, reductive pentose phosphate cycle (RPP cycle) or C3 cycle is a series of biochemical redox reactions that take place in the stroma of chloroplast in photosynthetic organisms.
What are the inputs of the light reactions?
Inputs to the light reactions are water and the light energy. 3. The light reactions produce ATP, NADPH and Oxygen.
What are the inputs and outputs of light reactions quizlet?
Light-dependent reactions convert solar energy into chemical energy in the form of NADPH and ATP. the input molecules are carbon dioxide and the output molecules are sugar, ADP, NADP+, and inorganic phosphate.
What is the initial carbon containing starting product in the Calvin cycle?
The reactions of the Calvin cycle add carbon (from carbon dioxide in the atmosphere) to a simple five-carbon molecule called RuBP. These reactions use chemical energy from NADPH and ATP that were produced in the light reactions.
Which of the answer choices correctly describes the role of rubisco in the Calvin cycle?
Which of the following CORRECTLY describes the role of rubisco in the Calvin cycle? … Rubisco incorporates CO2 from the atmosphere into an organic molecule.
How do the light reactions and the Calvin cycle work together to build glucose?
During these initial reactions, water is used and oxygen is released. The energy from sunlight is converted into a small amount of ATP and an energy carrier called NADPH. Together with carbon dioxide, these are used to make glucose (sugar) through a process called the Calvin Cycle.
What are the steps of light reaction?
The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.
What are the 6 steps of photosynthesis?
- Step 1-Light Dependent. CO2 and H2O enter the leaf.
- Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.
- Step 3- Light Dependent. The electrons move down to enzymes.
- Step 4-Light Dependent. …
- Step 5-Light independent. …
- Step 6-Light independent. …
- calvin cycle.
https://youtube.com/watch?v=nHoGbcwvw0A
How are the light reactions and Calvin cycle dependent on each other?
Explanation: The light dependent reaction of photosynthesis provides two important requirements ATP and NADPH to the Calvin Cycle. … They produce the ATP and NADPH necessary for the Calvin cycle.
How many stages are there in photosynthesis?
While there are many steps behind the process of photosynthesis, it can be broken down into two major stages: light-dependent reactions and light-independent reactions.
What is the first step of a light reaction?
During the first stage, the energy from sunlight is absorbed by the chloroplast. Water is used, and oxygen is produced during this part of the process. During the second stage, carbon dioxide is used, and glucose is produced.