Your question: What produces most of the ATP in metabolism?

The Krebs cycle takes place inside the mitochondria. The Krebs cycle produces the CO2 that you breath out. This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle). The electron transport chain takes place in the mitochondria.

What is the main source of ATP?

In general, the main energy source for cellular metabolism is glucose, which is catabolized in the three subsequent processes—glycolysis, tricarboxylic acid cycle (TCA or Krebs cycle), and finally oxidative phosphorylation—to produce ATP.

Which of the following metabolic pathways produces the most ATP?

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

Which pathway generates 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.

What are three sources of ATP?

The three sources are ATP already in muscles, ATP made by lactic acid fermentation, and ATP produced by cellular respiration. After the ATP in muscles is used, the muscles produce ATP by lactic acid fermentation.

Where is energy stored in ATP?

Adenosine Triphosphate

Energy is stored in the bonds joining the phosphate groups (yellow). The covalent bond holding the third phosphate group carries about 7,300 calories of energy. Food molecules are the $1,000 dollar bills of energy storage.

How much ATP is produced from glycolysis?

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy.

How much ATP does photosynthesis produce?

Glucose combines with oxygen (oxidation), forming carbon dioxide, water and 38 molecules of ATP.

Why does etc produce the most ATP?

During this process electrons are exchanged between molecules, which creates a chemical gradient that allows for the production of ATP. The most vital part of this process is the electron transport chain, which produces more ATP than any other part of cellular respiration.

What is the process that produces ATP?

cellular respiration

How do you replenish ATP?

ATP can be immediately replenished by creatine phosphate, another high-energy molecule in the muscle cells. But creatine phosphate is also in limited supply and can only support muscle contraction for an additional 3–4 seconds.

What are the 3 energy pathways?

Phosphagen (immediate source) Anaerobic (somewhat slow, uses carbohydrates) Aerobic (slow, uses either carbohydrate or fat)

What are two ways to make ATP?

There are two methods of producing ATP: aerobic and anaerobic. In aerobic respiration, oxygen is required. Oxygen as a high-energy molecule increases ATP production from 4 ATP molecules to about 30 ATP molecules. In anaerobic respiration, oxygen is not required.

What foods are high in ATP?

The ATP your body produces and stores comes from the oxygen you breathe and the food you eat. Boost your ATP with fatty acids and protein from lean meats like chicken and turkey, fatty fish like salmon and tuna, and nuts.

Can we survive without ATP?

The cell cannot survive without ATP. ATP is the energy source in cells so if our bodies did not produce ATP then the processes of active transport, cellular respiration and so on would stop working. The cells would start to die and eventually so would the organism itself.