How many electrons are transferred in aerobic respiration?

At the end of the electron transport chain involved in aerobic respiration, the last electron carrier in the membrane transfers 2 electrons to half an oxygen molecule (an oxygen atom) that simultaneously combines with 2 protons from the surrounding medium to produce water as an end product (Figure 18.3D. 5).

How much glucose is used in aerobic respiration?

The electron transport chain pulls H+ ions through the chain. From the electron transport chain, the released hydrogen ions make ADP for an result of 32 ATP. O2 provides most of the energy for the process and combines with protons and the electrons to make water.

How many electrons are transferred from glucose?

The answer is 24, or 12 electron pairs. You can figure this out from a balanced equation without the need for grinding through the pathways, but I’ll do it both ways. Each oxygen atom accepts 2 electrons, so there you go. Done.

How many electrons does glycolysis produce?

Reaction 5 is an oxidation where NAD+ removes 2 hydrogens and 2 electrons to produce NADH and H+. Since this reaction occurs twice, 2 NAD+ coenzymes are used. If the cell is operating under aerobic conditions (presence of oxygen), then NADH must be reoxidized to NAD+ by the electron transport chain.

How are the electrons that are removed from glucose during all processes of aerobic respiration used in the electron transport chain to produce ATP?

Electrons and hydrogen ions are removed from glucose and taken up by hydrogen carriers (NADH and FADH2) The hydrogen carriers are in turn oxidised at the electron transport chain (where the energy is used to make ATP) The electrons and hydrogen ions are then taken up by oxygen (reduction) to form water molecules.

Does glucose lose electrons in cellular respiration?

In cellular respiration, electrons from glucose move gradually through the electron transport chain towards oxygen, passing to lower and lower energy states and releasing energy at each step.

How is glucose used in respiration?

Glucose is the molecule normally used for respiration – it is the main respiratory substrate . Glucose is oxidised to release its energy, which is then stored in ATP molecules. Aerobic respiration breaks down glucose and combines the broken down products with oxygen, making water and carbon dioxide.

How much energy is produced in aerobic respiration?

Aerobic cell respiration (glycolysis + the Krebs cycle + respiratory electron transport) produces 36 ATP/glucose consumed. Aerobic cell respiration is roughly 18 times more efficient than anaerobic cell respiration.

What are the 3 electron carriers?

Examples of Electron Carriers

• Flavin Adenine Dinucleotide. Flavin adenine dinucleotide, or FAD, consists of riboflavin attached to an adenosine diphosphate molecule.
• Nicotinamide Adenine Dinucleotide.
• Coenzyme Q.
• Cytochrome C.

How many ATP are produced in aerobic respiration?

36 ATP
Aerobic vs anaerobic respiration

	Aerobic
Products	ATP, water, CO 2
Location	Cytoplasm (glycolysis) and mitochondria
Stages	Glycolysis (anaerobic), Krebs cycle, oxidative phosphorylation
ATP produced	Large amount (36 ATP)

Is glucose an electron donor?

In other words, oxygen is being used as the final electron acceptor. This generates the most ATP for a cell, given the large amount of distance between the initial electron donor (glucose) and the final electron acceptor (oxygen), as well as the large number of electrons that glucose has to donate.

How many ATP are used in aerobic respiration?

The three stages of aerobic cellular respiration are glycolysis (an anaerobic process), the Krebs cycle, and oxidative phosphorylation….Aerobic vs anaerobic respiration.

	Aerobic	Anaerobic
ATP produced	Large amount (36 ATP)	Small amount (2 ATP)