the electrons stripped from glucose in cellular respiration end up in which compound?
Liam Parker
Updated on July 24, 2026
In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.
What are the electrons removed from glucose by cellular respiration used for?
Most of the electrons removed from glucose by cellular respiration are used for which of the following processes? Reducing NAD+ to NADH in glycolysis and the citric acid cycle AND producing a proton gradient for ATP synthesis in the mitochondria.
What is the fate of the atoms in glucose at the end of cellular respiration?
The carbons from glucose end up in ATP molecules at the end of cellular respiration. Energy is stored within the chemical bonds within the glucose molecule.
When a glucose molecule is completely torn apart where do the carbons end up?
A glucose molecule is completely broken down to carbon dioxide and water in glycolysis and the citric acid (Krebs) cycle, but together these two processes yield only a few molecules of ATP.
What is the end product of glycolysis?
The final product of glycolysis is pyruvate in aerobic settings and lactate in anaerobic conditions. Pyruvate enters the Krebs cycle for further energy production.
When compounds lose electrons do they gain or lose energy?
5. When compounds lose electrons, they lose energy. When compounds gain electrons, they gain energy.
Is glucose oxidized or reduced in cellular respiration?
Glucose is oxidized during respiration because it gives its electrons to NAD† or FAD. Carbon dioxide has more oxygen atoms per carbon, so it is the more oxidized form.
What is the final electron acceptor in the electron transport chain?
Oxygen is the terminal electron acceptor in the mitochondrial electron transport chain and therefore is required for the generation of energy through oxidative phosphorylation.
Is the final electron acceptor at the end of the electron transport chain when water is formed?
At the end of the electron transport system, two protons, two electrons, and half of an oxygen molecule combine to form water. Since oxygen is the final electron acceptor, the process is called aerobic respiration.
What are the end products for cellular respiration?
Cellular respiration sustains aerobic life and involves the oxidation of nutrients, with the final production of carbon dioxide and water.
Where does the oxygen in glucose end up?
Summary. Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body’s cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
Where in the cell does glucose end up?
Briefly: In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. In stage two, the pyruvate molecules are transported into the mitochondria. The mitochondria are the organelles known as the energy “powerhouses” of the cells (Figure below).
How is glucose broken down into carbon dioxide and water?
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.
Why are glucose molecules broken down?
Four Stages of Cellular Respiration
Glucose can be used to synthesize glycogen and other storage fuels or broken down further to provide energy for metabolic processes, a series of reactions collectively termed cellular respiration. The stages of glucose breakdown can be divided into four distinct phases.
What are the names given to the process by which carbon molecules are broken down to make carbon dioxide and release a great amount of energy?
The cells of living things also get energy by “burning.” They “burn” glucose in the process called cellular respiration. Figure 5.9. 1: Burning logs that convert carbon in wood into carbon dioxide and a significant amount of thermal energy.
Is glucose the end product of glycolysis?
Explanation: The end product of glycolysis is pyruvic acid. A glucose molecule is partially oxidised to two molecules of pyruvic acid. Glycolysis is a ten-step process catalysed by multiple enzymes.
What is the molecule you end up with after glycolysis?
Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
What happens to glucose during glycolysis?
During glycolysis, glucose ultimately breaks down into pyruvate and energy; a total of 2 ATP is derived in the process (Glucose + 2 NAD+ + 2 ADP + 2 Pi –> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O). The hydroxyl groups allow for phosphorylation. The specific form of glucose used in glycolysis is glucose 6-phosphate.