MedSci

• What is the process of digestion?

  Breaking down large molecules into smaller ones
• What is the role of the stomach in digestion?

  Stores undigested food and secretes digestive juices
• How do enzymes assist in digestion?

  They hydrolyze large molecules into smaller ones
• What are the key processes in the digestive system?

  • Digestion: Hydrolysis of large molecules
  • Absorption: Taking soluble molecules into the body
  • Assimilation: Incorporating absorbed molecules into tissues
• What is the function of the buccal cavity?

  Chews food into smaller pieces
• What does salivary amylase do?

  Breaks down starch into maltose
• What is the role of mucus in the stomach?

  Protects the stomach lining from enzymes
• What does the oesophagus do?

  Transports the bolus to the stomach
• What is chyme?

  Churned food mixed with gastric juices
• What does the liver produce?

  Bile salts that emulsify fats
• What is the function of the gall bladder?

  Stores bile salts produced by the liver
• What are the two main functions of the pancreas?

  Releases digestive enzymes and hormones
• What enzymes does the pancreas release?

  Amylase, lipase, and trypsin
• What are the parts of the small intestine?

  • Duodenum
  • Jejunum
  • Ileum
• What is the function of the large intestine?

  Absorbs water and salts from undigested material
• What are the four parts of the colon?

  Ascending, transverse, descending, sigmoid
• What is the composition of feces?

  75% water and 25% solid matter
• What is the role of bacteria in the colon?

  Produce vitamins and break down amino acids
• What are the symptoms and nutrients lacking in deficiency diseases?

  • Osteoporosis: Calcium deficiency
  • Scurvy: Vitamin C deficiency
  • Rickets: Vitamin D deficiency
  • Anaemia: Iron deficiency
  • Night blindness: Vitamin A deficiency
  • Kwashiorkor: Protein deficiency
• What does amylase break down?

  Amylose into maltose
• What does maltase produce?

  Glucose from maltose
• What does trypsin break down?

  Short polypeptide chains into amino acids
• What does lipase produce?

  Glycerol and fatty acids from triglycerides
• What is the purpose of the digestive card sort?

  To categorize digestive system components
• What are the key terms related to the digestive system?

  • Digestion
  • Absorption
  • Assimilation
  • Mucus
  • Salivary glands
  • Buccal cavity
  • Oesophagus
  • Gall bladder
  • Pancreas
  • Colon
• What is the link between digestion and nutrient deficiencies?

  Imbalanced diet can lead to deficiencies
• What is the significance of the video on digestive organs?

  To summarize functions of key digestive organs