Is there an ETC in photosynthesis?

Is there an ETC in photosynthesis?

This is an active graphic. Electron transport helps establish a proton gradient that powers ATP production and also stores energy in the reduced coenzyme NADPH. This energy is used to power the Calvin Cycle to produce sugar and other carbohydrates.

Where is the electron transport chain located?

inner mitochondrial membrane

Where does the electron come from in photosynthesis?

In (a) photosystem II, the electron comes from the splitting of water, which releases oxygen as a waste product. In (b) photosystem I, the electron comes from the chloroplast electron transport chain. The two photosystems absorb light energy through proteins containing pigments, such as chlorophyll.

What are the two electron carriers in photosynthesis?

The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.

What are the electron carriers?

There are two types of electron carriers that are particularly important in cellular respiration: NAD +start superscript, plus, end superscript (nicotinamide adenine dinucleotide, shown below) and FAD (flavin adenine dinucleotide). Chemical structures of NAD+ and NADH.

What happens to pyruvate when oxygen is present?

In the presence of oxygen, pyruvate is transformed into an acetyl group attached to a carrier molecule of coenzyme A. The resulting acetyl CoA can enter several pathways, but most often, the acetyl group is delivered to the citric acid cycle for further catabolism.

What is the input and output of pyruvate oxidation?


Term What are the inputs of Glycolysis? Definition 1 Glucose, 2 NAD+, 2 ATP, 4 ADP
Term What are the inputs of Oxidation of Pyruvate? Definition 2 pyruvate, 2 NAD +, 2 coenzymes A
Term What are the outputs of Oxidation of Pyruvate? Definition 2 Co2, 2 NADH, 2 Acetyl CoA

Does glycolysis produce Co2?

Glucose ( 6 carbon atoms) is split into 2 molecules of pyruvic acid (3 carbons each). This produces 2 ATP and 2 NADH. Glycolysis takes place in the cytoplasm. This breaks down the pyruvic acid to carbon dioxide.

How many CO2 is produced in glycolysis?

six CO

Does link reaction produce CO2?

Yes. The Link Reaction is occurring at step 2, as pyruvate enters the mitochondria, gets converted to Acetyl CoA, releases a CO2 and generates one NADH.

Does the citric acid cycle produce CO2?

Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH2, and ATP or GTP.

What happens to co2 in citric acid cycle?

The citric acid cycle: In the citric acid cycle, the acetyl group from acetyl CoA is attached to a four-carbon oxaloacetate molecule to form a six-carbon citrate molecule. Through a series of steps, citrate is oxidized, releasing two carbon dioxide molecules for each acetyl group fed into the cycle.

Why is citric acid cycle important?

The tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration. The cycle harnesses the available chemical energy of acetyl coenzyme A (acetyl CoA) into the reducing power of nicotinamide adenine dinucleotide (NADH).

How does the citric acid cycle begin?

The citric acid cycle begins with the transfer of a two-carbon acetyl group from acetyl-CoA to the four-carbon acceptor compound (oxaloacetate) to form a six-carbon compound (citrate). For each acetyl group that enters the citric acid cycle, three molecules of NADH are produced.

Does citric acid cycle require oxygen?

The function of the citric acid cycle is the harvesting of high-energy electrons from carbon fuels. Oxygen is required for the citric acid cycle indirectly inasmuch as it is the electron acceptor at the end of the electron-transport chain, necessary to regenerate NAD+ and FAD.

Where does the citric acid cycle occur in prokaryotes?


What are the six carbon compounds?

What Are The Six-carbon Compounds? Succinate, Fumarate, Malate, And Oxaloacetate Citrate And Isocitrate Acetyl CoA And Succinyl CoA Fumarate, Malate, And Oxaloacetate SubmitMy AnswersGive Up Completed Part B How Is The Number Of Carbon …

What is the most important product of the citric acid cycle?

The citric acid cycle is a series of reactions that produces two carbon dioxide molecules, one GTP/ATP, and reduced forms of NADH and FADH2.

What stage of cellular respiration produces pyruvate as a product?