Algebra 1 by Armando Rojo

By Armando Rojo

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The standard suffix for enzymes is “ase,” so it is easy to identify enzymes that use this ending (some do not). 3. Cofactors are nonprotein molecules that assist enzymes. A holoenzyme is the union of the cofactor and the enzyme (called an apoenzyme when part of a holoenzyme). • Coenzymes are organic cofactors that usually function to donate or accept some component of a reaction, often electrons. Some vitamins are coenzymes or components of coenzymes. • Inorganic cofactors are often metal ions, like Fe2+.

Describe why water is an ideal medium for living things. 3. When you hard-boil an egg, the clear liquid part surrounding the yolk becomes white and solid. Discuss why this happens. ) Enzymes are globular proteins. Proteins, in turn, are polymers of amino acid—chains of amino acids, bonded to each other by peptide bonds. The general formula for an amino acid is a central carbon atom bonded to an amino group (NH2+), a carboxyl group (COOH), and a hydrogen atom. A fourth bond is made with a group of atoms that varies with each of the twenty amino acids.

ATP is essentially an RNA adenine nucleotide with two additional phosphate groups. The wavy lines between these two phosphate groups indicate highenergy bonds. When ATP supplies energy to a reaction, it is usually the energy in the last bond that is delivered to the reaction. In the process of giving up this energy, the last phosphate bond is broken and the ATP molecule is converted to ADP (adenosine diphosphate) and a phosphate group (indicated by Pi). In contrast, new ATP molecules are assembled by phosphorylation when ADP combines with a phosphate group using energy obtained from some energy-rich molecule (like glucose).

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