Digestive System
Learning Time: 4-12 hours
Content: The digestive system is an organ that provides the mechanical and chemical breakdown of food and the absorption of nutrients. This topic covers the structure of the digestive organs (mouth, esophagus, stomach, intestines), the roles of enzymes (amylase, pepsin, lipase), and the processes of nutrient absorption. Digestive enzymes and absorption are tested in the TYT, while digestive control mechanisms are tested in the AYT. The current 2025 curriculum also includes topics such as gut microbiota and digestive disorders (ulcers, celiac). Learning this topic strengthens the understanding of nutrition and metabolism.
- Organs of the Digestive System:
- Mouth (Salivary Glands and Amylase)
- Esophagus (Esophagus Peristalsis)
- Stomach (Acid and Pepsin Secretion)
- Small Intestine (Absorption Site)
- Large Intestine (Water Absorption)
- Liver and Gallbladder (Bile Secretion)
- Pancreas (Digestive Enzymes)
- Digestive Enzymes:
- Amylase (Carbohydrate Digestion)
- Pepsin (Protein Digestion)
- Lipase (Fat Digestion)
- Maltase and Sucrase (Disaccharide Digestion)
- Nutrient Absorption:
- Villus Structure (Absorptive Surface)
- Glucose and Amino Acid Absorption
- Fat Absorption (Short Chain Fatty Acids)
- Digestive Control Mechanisms:
- Neural Control (Vagus Nerve)
- Hormonal Control (Gastrin, Secretin)
- Feedback Mechanisms
- Digestive Disorders:
- Ulcer (Stomach and Duodenum)
- Celiac Disease (Gluten Sensitivity)
- Irritable Bowel Syndrome
- Gut Microbiota:
- The Role of Probiotics
- Microbiota and Digestive Health
- The Effect of Antibiotics
Course Features
- Lectures 0
- Quizzes 0
- Duration 5 hours
- Skill level Expert
- Language English
- Students 15
- Assessments Yes
