Understanding Body Metabolism

What is the main purpose of cellular respiration?

• To store energy in the form of starch.

• To convert glucose into usable energy (ATP) for the cell.

• To break down proteins into amino acids.

• To produce oxygen for the atmosphere.

How does the digestive system break down food?

• The digestive system absorbs nutrients directly from food.

• The digestive system relies solely on bacteria to digest food.

• The digestive system breaks down food through mechanical and chemical processes.

• The digestive system only uses enzymes to break down food.

What is the primary function of carbohydrates in metabolism?

• To store genetic information

• To facilitate oxygen transport

• The primary function of carbohydrates in metabolism is to provide energy.

• To act as a structural component in cells

How are proteins metabolized in the body?

• Proteins are stored in the liver and released as needed.

• Proteins are converted directly into glucose for energy.

• Proteins are metabolized by being excreted without any digestion.

• Proteins are metabolized by being digested into amino acids, which are then absorbed and utilized for various functions in the body.

What are the byproducts of cellular respiration?

• Carbon dioxide and water

• Oxygen and glucose

• Nitrogen and ammonia

• Lactic acid and ethanol