The Digestive System

• What is the role of glandular tissue in the stomach?

  It releases enzymes for digestion
• What is the function of the digestive system?

  To break down food and absorb nutrients
• How are large food molecules broken down?

  By enzymes during digestion
• What happens to small food molecules after digestion?

  They are absorbed into the bloodstream
• What role does saliva play in digestion?

  It contains enzymes that digest starch
• What is the function of hydrochloric acid in the stomach?

  It helps enzymes digest proteins
• What is the role of the pancreas in digestion?

  It releases enzymes for starch and protein digestion
• What does bile do in the digestive process?

  It speeds up lipid digestion and neutralizes acid
• How are small food molecules absorbed in the small intestine?

  By diffusion or active transport
• What happens in the large intestine?

  Water is absorbed into the bloodstream
• What is released from the body at the end of digestion?

  Faeces
• How are the products of digestion used by the body?

  To build new carbohydrates, lipids, and proteins
• What are the main functions of the digestive system organs?

  • Mouth: Chews food and begins starch digestion
  • Oesophagus: Transports food to the stomach
  • Stomach: Digests proteins and churns food
  • Small intestine: Digests proteins, starch, and lipids; absorbs nutrients
  • Large intestine: Absorbs water; releases faeces
• What nutrients are absorbed into the bloodstream after digestion?

  • Glucose
  • Amino acids
  • Fatty acids and glycerol
• What is the significance of the digestive system in the human body?

  • Provides essential nutrients for energy
  • Supports growth and repair of tissues
  • Maintains overall health and function