Does cellular respiration use a H+ gradient?

During cellular respiration the H+ gradient required for the generation of ATP through chemiosmosis is established by: pumping H+ from the intermembrane space to the mitochondrial matrix.

How is sucrose used in cellular respiration?

Most other carbohydrates enter the cellular respiration pathway during glycolysis. For example, sucrose is a disaccharide made from glucose and fructose bonded together. Because these carbohydrates enter near the beginning of glycolysis, their catabolism (breakdown) produces the same number of ATP molecules as glucose.

What is the formula for cellular respiration?

Carbon dioxide + Water Glucose (sugar) + Oxygen CO2 + H2O C6H12O6 + 6O2 Cellular respiration or aerobic respiration is a series of chemical reactions which begin with the reactants of sugar in the presence of oxygen to produce carbon dioxide and water as waste products.

Is cellular respiration an uphill or downhill reaction?

Because the NAD+ has a higher affinity for hydrogens than the carbon in a carbohydrate, this group of reactions is ‘downhill’.

Where does the H+ gradient form?

The electrons from from NADH and FADH2 flow through the electron transport chain in the inner mitochondrial membrane generating a H+ buildup in the inner membrane space. This proton gradient (gradient of H+) flowing through the membrane enzyme complex ATP synthetase is the direct energy source for producing ATP.

How do H+ pass through ATP synthase what process )? *?

As described previously, the passage of H+ through ATP synthase uses the exergonic flow of H+ to drive the phosphorylation of ADP. Thus, the energy stored in an H+ gradient across a membrane couples the redox reactions of the electron transport chain to ATP synthesis, an example of chemiosmosis.

Is sucrose molecules break down during cellular respiration?

Most carbohydrates enter cellular respiration during glycolysis. In some cases, entering the pathway simply involves breaking a glucose polymer down into individual glucose molecules. For instance, sucrose (table sugar) is made up of glucose and fructose.

What must occur before sucrose is used in cellular respiration?

What must occur before sucrose is used in cellular respiration? sucrase enzymes breaks it down to glucose and fructose.

What is chemiosmosis in cellular respiration?

Chemiosmosis is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient. An important example is the formation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis.

What are the four stages in cellular respiration?

The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.