Metabolism's primary function is to convert nutrients into energy that cells can use to perform various life processes.

Glucose is the primary fuel molecule that undergoes cellular respiration to produce energy.

ATP serves as the primary energy currency in cells, providing energy for various cellular processes.

Glycolysis is the first stage of cellular respiration that takes place in the cytoplasm, breaking down glucose into pyruvate.

Oxygen serves as the final electron acceptor in the electron transport chain, combining with electrons and protons to form water.

The Krebs cycle produces NADH and FADH2, which are high-energy electron carriers that feed into the electron transport chain.

Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Lactic acid fermentation is a type of fermentation that occurs in the absence of oxygen, producing lactic acid as a byproduct.

Enzymes are biological catalysts that accelerate the rate of chemical reactions in metabolism.

The Krebs cycle, also known as the citric acid cycle, takes place in the mitochondria and is a key step in cellular respiration.

NAD+ acts as a coenzyme in redox reactions, accepting electrons and protons to become NADH.

Gluconeogenesis is a metabolic pathway that occurs in the liver and kidneys, converting non-carbohydrate molecules into glucose.

Catabolism is the process by which cells break down complex molecules into simpler ones, releasing energy.

Lipid synthesis occurs in the endoplasmic reticulum, where fatty acids and other lipids are produced.

FADH2 acts as an electron carrier in the electron transport chain, transferring electrons to other molecules.