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- If the fat in whole milk is ingested: a. the stomach, with its high pH, will stimulate cells of the duodenum to hasten stomach emptying. b. parietal cells in the stomach will absorb it. c. in the small intestine, bile salts emulsify the fats and then lipase hydrolyzes them. d. lactase deficiency in the small intestine would prevent its digestion. e. microvilli will absorb the fat in the form of chylomicrons directly into the blood of the hepatic portal vein.1. Why is it important to pay attention to essential amino acids if you are a vegetarian/vegan?4. Which one of the following is NOT a nonessential amino acid? A. Alanine B. Cysteine C. Proline D. Methionine 5. True / False: Protein digestion and absorption can take place in the small intestine A. True B. False 6. Which one of the following is not a good source of protein? A. rice B. meat C. fish D. dried beans E. poultry
- 1- Which one of the following statements describes non - essential amino acids ? a) They can be synthesized from essential amino acids . b) They are ingested but not used in protein synthesis . c) They are stored in adequate amounts so are not needed in the diet . d) They are less important in cells than essential amino acids . 2- Some proteins contain additional amino acids that arise by modification of an amino acid already present in a peptide , examples include: a) Gamma Amino Butyric Acid. b) 5 - hydroxy Lysine c) 4 - hydroxy proline d) All of the above e) None of the above1. What will happen to the human body if we are deficient in particular vitamins and trace elements? Give examples of the effects of vitamin and mineral deficiencies 2. There are 20 amino acids needed to make proteins in the animal body. Why aren't they all considered essential to animal diets?A python can survive by eating a large meal once or twice a year. When it does eat, microvilli in its small intestine lengthen fourfold and its stomach pH drops from 7 to 1. Explain the benefits or these changes.
- Which of the following statements is not true? Essential nutrients can be synthesized by the body Vitamins are required in small quantities for bodily function Some amino acids can be synthesized by the body, while others need to be obtained from diet Vitamins come in two categories: fat-soluble and water-soluble.By watching this animation (http://openstaxcollege.org/l/foodgroups) , you will see that for the various food groups—proteins, fats, and carbohydrates—digestion begins in different parts of the digestion system, though all end in the same place. Of the three major food classes (carbohydrates, fats, and proteins), which is digested in the mouth, the stomach, and the small intestine?Which of the following statements is untrue? Roughage takes a long time to digest Birds eat large quantities at one time so that they can fly long distances Cows do not have upper teeth In pseudo-ruminants, roughage is digested in the cecum.
- The order of successive steps in digestion is: a. absorption follows enzymatic hydrolysis. b. secretion of enzymes follows absorption of digestive material. c. mechanical processing follows enzyme secretion. d. mechanical processing follows enzymatic hydrolysis. e. enzymatic hydrolysis precedes secretion of digestive aids.4. Which of the following is the CORRECT pair of a protein and its function? * A. Hemoglobin: helps regulate blood sugar levels B. Actin and myosin: supplies amino acids to baby mammals C. Rhodopsin: provides strength and flexibility to connective tissues D. Enzymes: speed up reactions in the body and eventually used up in the process1-One of the following dietary features is not important to ensure adequate protein a.a part of protein should be from animal or soy protein b.the amount of protein should supply at least 10% of daily energy c.enough carbohydrate should be consumed d.the diet must contain all essential and nonessential amino acids