The nutrients that yield the most energy per gram when metabolized are?

Which energy nutrient produces the most ATP per molecule?

So, oxidative phosphorylation is the metabolic cycle that produces the most net ATP per glucose molecule.

Which of the following mechanisms produces the most ATP?

Most ATP from cellular respiration are produced directly in the citric acid (Krebs) cycle. Glycolysis relies on substrate-level oxidation for the four ATP produced in this pathway.

What are the three major stages of metabolism of energy containing nutrients?

The three stages of nutrient breakdown are the following: Stage 1. Glycolysis for glucose, β-oxidation for fatty acids, or amino-acid catabolism. Stage 2. Citric Acid Cycle (or Kreb cycle) Stage 3. Electron Transport Chain and ATP synthesis.

Which of the following describes the breakdown of glucose to pyruvic acid?

glycogen. Breakdown of glucose to pyruvic acid. amino acids. Beta oxidation is the initial phase of fatty acid oxidation, and it occurs in the cytoplasm.

What nutrient has the highest energy yield?

Sometimes people refer to these nutrients as “energy yielding”. As you read above, carbohydrates provide 4 Calories for every gram we consume; proteins provide 4 Calories for every gram we consume; fats provide 9 Calories for every gram we consume and alcohol provides 7 Calories of energy for every gram we consume.

What is the main source of energy for the body?

Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found in foods and drinks. Your body breaks down carbohydrates into glucose. Glucose, or blood sugar, is the main source of energy for your body’s cells, tissues, and organs.

Which letter indicates the process during which oxygen is consumed?

Which letter (s) indicate the process during which oxygen is consumed? Oxidative phosphorylation is the process by which ATP is formed as a result of the transfer of electrons from NADH or FADH2 to O2 (molecular oxygen ) by a series of electron carriers.

What is metabolism best described as?

Metabolism is best described as: The sum of all chemical reactions in the body. Anabolism (building up)- Uses energy to synthesize what body needs. What is the most important outcome of cellular respiration?

What mechanisms produces the most ATP during cellular respiration?

Most of the ATP produced by aerobic cellular respiration is made by oxidative phosphorylation.

What are the fuel factors of the three energy nutrients?

The human body uses carbohydrate, fat and protein in food and from body stores as energy. These essential nutrients are needed regardless of the intensity of activity you are doing.

Which muscles use the most energy?

The metabolic pattern of resting muscle is quite different. In resting muscle, fatty acids are the major fuel, meeting 85% of the energy needs. Unlike skeletal muscle, heart muscle functions almost exclusively aerobically, as evidenced by the density of mitochondria in heart muscle.

What is the end product of protein metabolism in humans?

Protein is digested and broken down to amino acids which are absorbed into the circulation and taken to cells throughout the body, primarily the liver and quickly become combined by peptide linkages.

Which cycle produces the greater amount of ATP?

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 ).

What are the most common sources of glucose needed for energy during exercise?

Blood glucose also serves as the most significant source of energy for the brain, both at rest and during exercise. The body constantly uses and replenishes its glycogen stores. The carbohydrate content of your diet and the type and amount of training that you undertake influence the size of your glycogen stores.

Is the formation of glucose in the liver from proteins and fats?

The liver uses amino acids to create glucose through biochemical reactions (gluconeogenesis). Fat stores can be used for energy, forming ketones.