- The digestive system in IB Biology involves the breakdown of food into smaller molecules through mechanical and chemical action.
- The alimentary canal and its organs include the esophagus, stomach, small intestine, and large intestine, each with specific roles in digestion and absorption.
- Accessory organs like the salivary glands, pancreas, liver, and gall bladder aid in the digestive process by releasing enzymes and bile.
- Mechanical digestion occurs in the mouth and stomach, while chemical digestion involves stomach acids, bile, and enzymes breaking down nutrients in the small intestine.
- The small intestine is critical for absorbing nutrients from food through its folded inner layer, villi, and microvilli.
For more information and visual aids, students can refer to resources like Digestive System in IB Biology PDF, notes, diagrams, and PowerPoint presentations available through platforms like Bioninja, IB Biology Digestive System Quizlet, and A Level Biology materials.
