ATP and NADPH produced by the light reactions are used in the Calvin cycle to reduce carbon dioxide to sugar ATP is the energy source, while NADPH is the reducing agent that adds high-energy electrons to form sugar
What is the role of ATP in the Calvin cycle quizlet?
uses ATP and NADPH from the light-dependent reactions to produce a single 6-carbon sugar molecule This phase uses the ATP and stored Hydrogens made in the previous phase to make glucose
Where is ATP used in Calvin cycle?
Reduction In the second stage, ATP and NADPH are used to convert the 3-PGA molecules into molecules of a three-carbon sugar, glyceraldehyde-3-phosphate (G3P) This stage gets its name because NADPH donates electrons to, or reduces, a three-carbon intermediate to make G3P
Is ATP necessary for the Calvin cycle?
The Calvin cycle is not totally independent of light since it relies on ATP and NADH, which are products of the light-dependent reactions The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration
What is the role of ATP in photosynthesis?
ATP is an important source of energy for biological processes Energy is transferred from molecules such as glucose, to an intermediate energy source, ATP In photosynthesis energy is transferred to ATP in the light-dependent stage and the ATP is utilised during synthesis in the light-independent stage
What do ATP and NADPH contribute to the Calvin cycle quizlet?
The ATP and NADPH produced in the light reactions drive the second stage of photosynthesis, the Calvin cycle In the Calvin cycle, carbon dioxide is incorporated into organic compounds, a process called carbon fixation The Calvin cycle produces a compound called G3P
What are the roles of ATP and NADPH in photosynthesis quizlet?
What are the roles of ATP and NADPH in photosynthesis? Both of these molecules carry energy; in the case of NADPH, it has reducing power that is used to fuel the process of making carbohydrate molecules in light-independent reactions Which of the following statements is true?
What is one role of ATP in the light independent reaction of photosynthesis?
What is one role of ATP in the light-independent reaction of photosynthesis? ATP supplies the energy to produce glucose and other carbohydrates In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen
How is ATP made during the light reactions?
The Light Reactions of Photosynthesis Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane These protons return through ATP synthase to make ATP
How many ATP and nadph2 molecules are required for Calvin cycle?
The Calvin cycle uses 18 ATP and 12 NADPH molecules to produce one glucose molecule
What’s the role of oxygen in cellular respiration?
Oxygen plays a vital role in energy production via a system called electron transport chain (ETC), which is an important component of cellular respiration Oxygen acts as a final electron acceptor that helps move electrons down a chain that results in adenosine triphosphate production
What is the most important result of the Calvin cycle?
What is the most important result of the Calvin Cycle? The ‘fixing’ of CO2 to yield two molecules of PGAL Cycle
What source of energy is used in the Calvin cycle?
In the Calvin cycle, atmospheric carbon dioxide is incorporated into ribulose bisphosphate (RuBP) The ATP and NADPH which are produced in the light-dependent reactions are utilised as the source of energy in the Calvin Cycle
What is the role of ATP in the chloroplast?
The chloroplast adenosine triphosphate (ATP) synthase uses the electrochemical proton gradient generated by photosynthesis to produce ATP, the energy currency of all cells Protons conducted through the membrane-embedded Fo motor drive ATP synthesis in the F1 head by rotary catalysis
What is the importance of ATP?
ATP is the main source of energy for most cellular processes The building blocks of ATP are carbon, nitrogen, hydrogen, oxygen, and phosphorus Because of the presence of unstable, high-energy bonds in ATP, it is readily hydrolyzed in reactions to release a large amount of energy
What is the role of ATP in energy transfer?
ATP is able to power cellular processes by transferring a phosphate group to another molecule (a process called phosphorylation) This transfer is carried out by special enzymes that couple the release of energy from ATP to cellular activities that require energy
What is meant by an ATP cycle and why is it an important frequent event in cells how does this involve ADP quizlet?
Basically, it powers the protein to move molecules What is meant by an ATP cycle and why is it an important, frequent event in cells? ATP can be hydrolyzed, releasing energy and losing one of its phosphates in the process After losing the unstable phosphate, it then becomes ADP
Where does the ATP and NADPH go What is their purpose?
The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle In another form of the light reactions, called cyclic photophosphorylation, electrons follow a different, circular path and only ATP (no NADPH) is produced
Where does the ATP and NADPH go What is their purpose quizlet?
-The ATP provides the energy, and the NADPH supplies the electrons for the Calvin cycle, which converts carbon dioxide to sugar
What is the role of ATP in photosynthesis quizlet?
What is the role of ATP in photosynthesis? In light independent stage the energy carrier for the reaction that take place in the light dependent stage ATP is also passed from light dependent stage to the dark stage to be used as energy in that process as well
What are the roles of ATP and NADH in photosynthesis?
ATP and NADPH are energy storage and electron carrier/donor molecule Both ATP and NADPH are used in the next stage of photosynthesis The chlorophyll molecule regains the lost electron from a water molecule through a process called photolysis, which releases dioxygen (O2) molecule
What is the purpose of molecules such as ATP and NADPH in photosynthesis?
In these reactions, the energy from ATP and NADPH is used to fix carbon dioxide (CO2) The products of this reaction are sugar molecules and various other organic molecules necessary for cell function and metabolism
What does ATP contribute to the reaction?
ATP provides the energy for both energy-consuming endergonic reactions and energy-releasing exergonic reactions, which require a small input of activation energy When the chemical bonds within ATP are broken, energy is released and can be harnessed for cellular work
What is the importance of the light-independent reactions?
The light-independent reactions (Calvin cycle) use stored chemical energy from the light-dependent reactions to “fix” CO2 and create a product that can be converted into glucose The ultimate goal of the light-independent reactions (or Calvin cycle) is to assemble a molecule of glucose
Do the light reactions depend on the Calvin cycle?
The Calvin cycle refers to the light-independent reactions in photosynthesis that take place in three key steps Although the Calvin Cycle is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers ( ATP and NADPH) are products of light-dependent reactions