ATP and NADPH produced by the light reactions are used in the Calvin cycle to reduce carbon dioxide to sugar. The Calvin cycle actually produces a three-carbon sugar glyceraldehyde 3-phosphate (G3P). ...

How many ATP are produced in Calvin cycle?

The Calvin cycle: three molecules of CO₂ fixed give a net yield of one molecule of glyceraldehyde 3-phosphate at the net cost of nine molecules of ATP and six molecules of NADPH.

What does the Calvin cycle produce?

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. The final product of the Calvin cycle is glucose.

Does the Calvin cycle produce the most ATP?

This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle).

What is the role of ATP in Calvin cycle?

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. ...

The Calvin Cycle

43 related questions found

Where does the energy for the Calvin cycle come from?

The energy used in the Calvin cycle comes from the ATP and NADPH that are made in the Light Reactions stage of photosynthesis.

Which process produces the most ATP?

Explanation: The electron transport chain generates the most ATP out of all three major phases of cellular respiration. Glycolysis produces a net of 2 ATP per molecule of glucose.

Which process produces the most ATP aerobic or anaerobic?

Summary

• Aerobic respiration produces much more ATP than anaerobic respiration.
• Anaerobic respiration occurs more quickly than aerobic respiration.

Which step of the Calvin cycle requires no extra energy?

Which step of the Calvin cycle requires no extra energy? carbon fixation by RuBisCO to form PGA.

What is produced by the Calvin cycle quizlet?

The Calvin cycle produces ADP, NADP+, and phosphates that are used in the light reactions.

What is the main product 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.

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 is produced in light reactions?

The nine molecules of ATP and six molecules of NADPH come from the light reactions. Encyclopædia Britannica, Inc.

What happens to cO2 in the Calvin cycle?

What happens to carbon dioxide molecules in the Calvin cycle reactions? carbon dioxide molecules are bonded together with the electrons and H's from NADPH to form glucose. ... cO2 goes in and O2 comes out. it helps to exchange them using simple diffusion.

Does the Calvin cycle produce oxygen?

The Calvin Cycle converts three water and three carbon dioxide molecules into one molecule of glyceraldehyde. The six left over oxygen atoms are released into the atmosphere where they are available for use in respiration.

Which of the following process generates ATP *?

Cellular respiration is the process by which organisms break down energy rich molecules to release the energy in a usable form (ATP).

Which energy system creates the most ATP?

The aerobic system produces far more ATP than either of the other energy systems but it produces the ATP much more slowly, therefore it cannot fuel intense exercise that demands the fast production of ATP.

Which process produces the most ATP quizlet?

Most of the ATP in cellular respiration is produced by the process of chemiosmosis.

Which process produces the most ATP and what other compound is produced in that process?

Oxidative phosphorylation, which involves the electron transport chain that produces maximum ATP. It takes one NADH molecule via Channel 1 to produce 2.5 ATP and one FADH2 molecule via channel 2 to produce 1.5 ATP, for a total of 34 ATP.

How is ATP produced?

It is the creation of ATP from ADP using energy from sunlight, and occurs during photosynthesis. ATP is also formed from the process of cellular respiration in the mitochondria of a cell. This can be through aerobic respiration, which requires oxygen, or anaerobic respiration, which does not.

Which chemical process generates the ATP produced in the citric acid cycle?

Oxidative phosphorylation, the process where electron transport from the energy precursors from the citric acid cycle (step 3) leads to the phosphorylation of ADP, producing ATP.

Where is the most energy used in the Calvin cycle?

Where is the most energy used in the Calvin cycle? Creating the higher-energy bonds in G3P requires the most energy in the Calvin cycle.

Is ATP produced in light-dependent reactions?

The light-dependent reactions involve two photosytems (II and I) and an electron transport chain that are all embedded in the thylakoid membrane. ... Protons diffuse out of the thylakoid lumen through the enzyme, ATP synthase, producing ATP in the process.

Is ATP produced in pyruvate processing?

Cells produce atP from glucose via a series of processes: (1) glycolysis, (2) pyruvate processing, (3) the citric acid cycle, and (4) electron transport and oxidative phosphorylation. each process produces high-energy molecules in the form of nucleotides (atP) and/or electron carriers (nadh or Fadh2).