Biology enzymes

• What is the process of digestion?

  Digestion is the process by which large molecules are broken down into small, soluble molecules.
• What is the role of enzymes in digestion?

  Enzymes help break down large molecules into smaller, soluble molecules.
• Where are enzymes produced in the digestive system?

  Enzymes are produced in the salivary glands, pancreas, and stomach.
• What type of enzyme is produced in the stomach?

  The stomach produces enzymes that digest carbohydrates and starches.
• How do enzymes break down larger molecules?

  Enzymes break down larger molecules by breaking them apart into smaller molecules.
• What are the main components of the circulatory system?

  • Transports nutrients, gases, hormones, and waste products
  • Composed of blood vessels (arteries, veins, capillaries)
  • Includes the heart as a pump
• What is the function of the vena cava in the circulatory system?

  The vena cava allows blood to flow into the right atrium of the heart.
• What happens in the right atrium of the heart?

  The right atrium receives deoxygenated blood from the body through the vena cava.
• What is the role of the pulmonary artery?

  The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs.
• What is the function of capillaries in the circulatory system?

  Capillaries allow for the exchange of gases, nutrients, and waste products between blood and tissues.
• What is lactic acid and when is it produced?

  Lactic acid is produced during anaerobic respiration when oxygen is not available.
• What are the effects of lactic acid accumulation in muscles?

  Lactic acid accumulation can lead to cramps and muscle fatigue.
• How does the body respond to increased physical activity in terms of blood flow?

  Blood flow increases to supply more oxygen and nutrients to the muscles during physical activity.
• What is the relationship between muscle contraction and respiration?

  Muscle contraction requires energy, which is produced through respiration.
• What is the primary waste product of anaerobic respiration?

  The primary waste product of anaerobic respiration is carbon dioxide.