What are the starting reactants of the electron transport chain

Answer 1) uses oxygen and ATP molecules as reactants

Explanation : Alcoholic fermentation
uses oxygen and ATP molecules as reactants.
Alcoholic fermentation which is also called as ethanol fermentation is a biological process in which sugars such as glucose, fructose, and sucrose into are converted into cellular energy, producing ethanol and carbon dioxide as by-products.

Answer 2) .

Explanation : Substances that are used up as the reactants in cellular respiration are oxygen and glucose molecules. It occurs in mitochondria. The main product of cellular respiration is ATP.

Answer 3) Glycolysis

Explanation : The process of glycolysis must occur before two pyruvate molecules are converted to two lactic acid molecules. Two NADH molecules are converted to two NAD+ molecules in the process. In glycolysis a molecule gets split into two ATP molecules, two pyruvate molecules, and two NADH molecules.

Answer 4) NADH and are converted into ATP

Explanation : In kreb's cycle, NADH and are converted into ATP. It produces of ATP for every molecule of glucose and also produces eight molecules of NADH with two molecules of per molecule of glucose.

Answer 5) ATP

Explanation : During the process of cellular respiration, energy stored in glucose molecules is used to form
ATP.
ATP means Adenosine Tri Phosphate. In this process a set of metabolic reactions and processes takes place in the cells of organisms to convert biochemical energy from nutrients into ATP, and then release waste products.

Answer 6) Mitochondrion

Explanation : Kreb's cycle occurs in mitochondrion. It exactly occurs in the mitochondrial matrix and generates a pool of chemical energy from the oxidation of pyruvate molecule, giving the end product of glycolysis.

Answer 7) Glycolysis

Explanation : The stage of cellular respiration produces pyruvate as a product is Glycolysis. It involves breaking down of a sugar into more smaller compounds in order to produce energy in the form of ATP. The net end products of glycolysis are two pyruvate, two NADH, and two ATP.

Answer 8) Electron transport chain

Explanation : The stage of cellular respiration does not involve any carbon-based compounds as a reactant or product is Electron transport chain. The electron transport chain in the mitochondrion is the site for oxidative phosphorylation in eukaryotic organism.

Answer 9) Water and ATP

Explanation : The third stage of cellular respiration, the electron transport chain gives water and ATP. The final electron acceptor in the ETC is oxygen atom. When combined together with oxygen, electrons and protons they form molecules of water and ATP.

Answer 10) Kreb's cycle.

Explanation : Kreb's cycle is the process that occurs after two pyruvate molecules undergo a chemical reaction, combining with co-enzyme A to form two acetyl-CoA molecules. Two carbon dioxide molecules and two NADH molecules are formed as a result of this process. Kreb's cycle occurs in mitochondrial matrix after the process of glycolysis.