module 3

What is the definition of metabolism?

• Metabolism is the total of all chemical changes that occur in the body.

• Metabolism is the process of breathing in oxygen and exhaling carbon dioxide.

• Metabolism is the breakdown of food only in the stomach.

• Metabolism is the movement of muscles during exercise.

Catabolism is an energy-releasing process where large molecules are broken down to smaller ones.

• True

• False

Anabolism is an energy-requiring process where small molecules are joined to form larger molecules.

• True

• False

Energy from nutrient catabolism is used to produce ______, which can then be used to drive anabolic reactions.

• ATP

• DNA

• Glucose

• Oxygen

What is catabolism?

• The process where energy released from food powers ATP production.

• The process where energy released from ATP breakdown powers cellular processes.

• The process of breaking down ATP into ADP and Pi.

• The process of synthesizing ATP from ADP and Pi.

What is anabolism?

• The process where energy released from food powers ATP production.

• The process where energy released from ATP breakdown powers cellular processes.

• The process of breaking down ATP into ADP and Pi.

• The process of synthesizing ATP from ADP and Pi.

Fill in the blank: Energy released from food powers ______ production.

• ATP

• DNA

• Glucose

• Chlorophyll

Refer to the diagram 'Overview of Biochemical Pathways of ATP Production.' Which of the following macronutrients can enter the glycolysis pathway directly as monosaccharides?

• Lipids

• Carbohydrates

• Proteins

• Fatty acids

What is the final product of the electron transport chain in ATP production?

• ATP and H2O

• CO2 and O2

• Glucose and O2

• NADH and FADH2

Fatty acids are broken down to produce which molecule that enters the citric acid cycle?

• Pyruvic acid

• Acetyl-CoA

• NADH

• Urea