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How does digestion work /
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- 4. be a dino-mite atfollowing the rules.
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- 14. At the endof 45-minute interactive discussion, the learners are expected to: a. identify the different digestive processes work; b. share insights on digestive processes’ role in our well-being; and c. trace how food is digested by creating a concept map of digestive mechanisms. Learning Objectives:
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- 25. DIGESTION the process bywhich our body breaks down food into nutrients that can be absorbed and used for energy, growth, and cell repair.
- 27. 4MAIN STAGES OFDIGESTIVE PROCESSES 4 MAIN STAGES OF DIGESTIVE PROCESSES INGESTION INGESTION DIGESTION DIGESTION ABSORPTION ABSORPTION EXCRETION EXCRETION
- 28. INGESTION Begins in themouth, where food is chewed (mechanical digestion) and mixed with saliva (chemical digestion).
- 29. INGESTION Begins in themouth, where food is chewed (mechanical digestion) and mixed with saliva (chemical digestion). Saliva contains enzymes like amylase that start breaking down carbohydrates.
- 30. INGESTION Begins in themouth, where food is chewed (mechanical digestion) and mixed with saliva (chemical digestion). Saliva contains enzymes like amylase that start breaking down carbohydrates. Food is formed into a bolus (soft ball) and swallowed, passing through the esophagus via peristalsis (muscle contractions).
- 31. DIGESTION • Occurs mainlyin the stomach and small intestine.
- 32. DIGESTION • Occurs mainlyin the stomach and small intestine. • In the stomach, food is mixed with gastric juices (hydrochloric acid and enzymes like pepsin) that break down proteins.
- 33. DIGESTION • Occurs mainlyin the stomach and small intestine. • In the stomach, food is mixed with gastric juices (hydrochloric acid and enzymes like pepsin) that break down proteins. • The semi-liquid mixture called chyme is then slowly released into the small intestine.
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- 36. ABSORPTION • Takes placeprimarily in the small intestine.
- 37. ABSORPTION • Takes placeprimarily in the small intestine. • The inner walls of the small intestine have villi and microvilli that absorb nutrients into the bloodstream.
- 38. ABSORPTION • Takes placeprimarily in the small intestine. • The inner walls of the small intestine have villi and microvilli that absorb nutrients into the bloodstream. • Nutrients like amino acids, glucose, vitamins, and minerals are absorbed here.
- 39. ABSORPTION • Takes placeprimarily in the small intestine. • The inner walls of the small intestine have villi and microvilli that absorb nutrients into the bloodstream. • Nutrients like amino acids, glucose, vitamins, and minerals are absorbed here. • The liver and pancreas assist by releasing bile and digestive enzymes.
- 40. EXCRETION • Indigestible substancesmove to the large intestine, where water is absorbed. .
- 41. EXCRETION • Indigestible substancesmove to the large intestine, where water is absorbed. • Remaining waste forms feces and is expelled through the rectum and anus.
- 43. ASSIGNMENT: A. Write ashort synthesis paper on how digestive system works with other body systems. B. What are the organs of the plants?