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42. What is the specific state of each of the four macromolecules that make up your diet when they are absorbed into the cells lining the digestive tract (see figure 24.20 page 957 of your text book)? 45. What does your body in terms of carbohydrates, proteins, triglycerides and nucleic acids specifically absorb?46. Which molecules are actively absorbed and which are absorbed by diffusion? (See figure 24.20, page 957)43. What happens to lipids in the small intestine? How and where are they absorbed in the small intestine? (See page 957 and figure 24.20b)
1344. How is intestinal secretion and motility regulated?47. How is water absorbed?48. What components of your diet help you to absorb water?49. How are electrolytes and vitamins absorbed?50. Describe the physiology of the large intestine. 51. What are the different types of movement in the large intestine?52. Does the large intestine secrete any digestive enzymes?53. What type of chemical digestion takes place in the large intestine?54. What important component of your diet is absorbed in the large intestine?55. When does chyme become feces?