Energy: Part 1

Identify the components of an ATP molecule

An adenine base, ribose sugar, and three phosphates (triphosphates)

Identify the components of an ADP molecule

An adenine base, ribose sugar, and two phosphates (diphosphates)

Define exothermic reaction

Reaction where energy is released

Define endothermic reaction

Reaction where energy is stored

Describe how energy is stored in the ATP/ADP cycle

Energy is stored in the third phosphate bond as the bond is formed by dehydration synthesis

Describe how energy is released in the ATP/ADP cycle

Energy stored in the third phosphate bond is released when the bond is broken by hydrolysis

Enzymes are describes as…

Organic catalysts

Which type of macromolecule are enzymes?

Protein

Describe how an enzyme speeds up a chemical reaction

An enzyme speeds up a chemical reaction by reducing the amount of activation energy.

Which structures make up the “lock and key” analogy

The substrate and active site

Identify what can cause an object to denature

Temperature and pH

Describe how the enzyme catalase functions in metabolic reactions. What does the enzyme help to break down

The enzyme catalase functions in metabolic reactions by breaking down hydrogen peroxide

From most energy to least energy, place ADP, AMP, and ATP in the correct order

ATP, ADP, AMP

Define substrates

Substrates are reactant molecules being converted into new and different products

Define active site

An active site is the pocket or groove on the surface of an enzyme that the substrate molecule fits in

Lable the diagram

ATP, ADP, Ribose sugar, Adenine, Triphosphate + Diphosphate (phosphate group), Energy absorbed and released (exothermic + endothermic)