AP Biology Unit 3 Review

Front

What is specificity in relation to enzymes?

Back

Specificity refers to the ability of an enzyme to catalyze a reaction for a specific substrate, meaning each enzyme only fits one type of substrate at its active site.

Front

Where does the Krebs Cycle occur in the cell?

Back

The Krebs Cycle takes place in the mitochondrial matrix.

Front

How many pyruvic acid molecules are produced from one glucose molecule during glycolysis?

Back

Each glucose (6C) produces 2 pyruvic acid (3C) molecules.

Front

What are CoFactors in enzymatic reactions?

Back

CoFactors are molecules that bind to enzymes and enhance their activity, helping them to function more effectively.

Front

What is the main output of oxidative phosphorylation?

Back

The main output of oxidative phosphorylation is ATP.

Front

Define denaturation in the context of enzymes.

Back

Denaturation is the process where an enzyme loses its functional shape due to external factors like temperature or pH, rendering it inactive.

Front

What role do competitive inhibitors play in enzyme activity?

Back

Competitive inhibitors bind to the active site of an enzyme, competing with the substrate and reducing the enzyme's activity.

Front

Explain the term 'allosteric regulation' in enzymes.

Back

Allosteric regulation involves the binding of molecules at sites other than the active site, which can enhance or inhibit enzyme activity.

Front

What is the function of NADH in cellular respiration?

Back

NADH acts as an electron carrier, transporting electrons to the electron transport chain during cellular respiration.

Front

Describe the process of glycolysis.

Back

Glycolysis is the metabolic pathway that converts glucose into pyruvate, producing a small amount of ATP and NADH in the process.