AP BIOLOGY

Detailed explanation-1: -In anabolism, small molecules change into larger, more complex molecules of carbohydrates, protein, and fat. Catabolism (pronounced: kuh-TAB-uh-liz-um), or destructive metabolism, is the process that produces the energy needed for all activity in the cells.

Detailed explanation-2: -Anabolic reactions, or biosynthetic reactions, synthesize larger molecules from smaller constituent parts, using ATP as the energy source for these reactions. Anabolic reactions build bone, muscle mass, and new proteins, fats, and nucleic acids.

Detailed explanation-3: -Anabolic reactions involve the building of larger, complex molecules from smaller, simpler ones, and require an input of energy. Catabolic reactions are the opposite of anabolic reactions, and break the chemical bonds in larger, more complex molecules.

Detailed explanation-4: -An example of anabolism is gluconeogenesis. This is when the liver and kidneys produce glucose from noncarbohydrate sources. Catabolism is what happens when you digest food and the molecules break down in the body for use as energy. Large, complex molecules in the body are broken down into smaller, simple ones.

Detailed explanation-5: -Anabolic reactions are those that “build up” large molecules from smaller ones. Catabolic reactions, on the other hand, are reactions where large molecules are broken down into smaller ones.