key term - Redox reactions

Definition

Redox reactions, or oxidation-reduction reactions, involve the transfer of electrons between molecules. These reactions are crucial for energy transfer in biological systems.

5 Must Know Facts For Your Next Test

1. Oxidation is the loss of electrons, and reduction is the gain of electrons.
2. The molecule that donates electrons is called the reducing agent, while the molecule that accepts electrons is called the oxidizing agent.
3. Redox reactions play a vital role in processes like cellular respiration and photosynthesis.
4. In cellular respiration, glucose is oxidized to produce carbon dioxide, while oxygen is reduced to form water.
5. The electron transport chain in mitochondria relies on a series of redox reactions to produce ATP.

Review Questions

Related terms

Cellular Respiration: The metabolic process where cells convert nutrients into energy (ATP) with the help of oxygen.

Electron Transport Chain: A sequence of proteins within the mitochondrial membrane that transfers electrons through redox reactions to generate ATP.

ATP (Adenosine Triphosphate): The primary energy carrier in cells, produced mainly through processes involving redox reactions.