17. Digestion begins in the mouth. Which of the following statement is INCORRECT

Question

17. Digestion begins in the mouth. Which of the following statement is INCORRECT? a. The tongue aids in the digestion of the food. b. The saliva changes some of the starches in the food to sugar. c. The tongue keeps the food in place in the mouth while the food is being chewed. d. The digestive juices can react more easily with the food when chewed. 18. What happens when food reaches the stomach? a. b. c. d. Nothing. No digestion occurs in the stomach. The food moves quickly into the small intestine. Juices mix with the food and stomach muscles squeeze it. The food is completely digested and is absorbed by tiny blood vessels in the walls of t stomach. 19ich thefolwing does NOT manufacture digestive vices? a. Liver b. Kidneys c. Stomach d. Pancreas 20. Our throat divides into two separate tubes: the windpipe and the gullet. What prevents foo entering the windpipe? a. The uvula b. The tongue c. The trachea d. The epiglottis

Explanation / Answer

17...a. Inside the mouth are many accessory organs that aid in the digestion of food. Teeth chop food into small pieces, which are moistened by saliva before the tongue and other muscles push the the food into pharynx.

b.saliva in the mouth contains an enzymes called amylase that catalyzes the breakdown of dietary starch into simple sugars

c. This option is incorrect.

d. The digestive juices can react more easily with the food when chewed.

18. C. Juices mix with the food and stomach muscles squeezes it.

19. b. Kidneys will not produces digestive juices.

20. d. Epiglottis.

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