Which of the following are digested by saliva



7.1 Which of the following is digested by amylase in the saliva?

1) Proteins

2) Lipids

3) Minerals

4) Vitamins

5) Starch

7.2 Thankfully the epiglottis is typically in the up position so that:

1) Food travels from the stomach to the small intestine

2) Air typically travels from the nose to the lungs

3) Blood travels from the liver to the heart

4) Blood travels from the heart to the liver

5) None of the above

7.3 Since food enclosed in metal tubes with cloth lids is partially digested when they go through the digestive track:

1) Digestion is, in part, a chemical process

2) Digestion is only a chemical process

3) Digestion is only a mechanical process

4) Digestion is a vital process

5) Digestion is composed of two gestions

7.4 Gastric juice contains______________.

1) hydrochloric acid

2) pepsin

3) mucus

4) all of the above

5) lipase

7.5 A valve in the skin that leads to the inside of the stomach is called a___________.

1) vivisection

2) dissection

3) fistula

4) duodenum

5) villus

7.6. William Beaumont noticed that Alexis St. Martin’s stomach ______________in response to fear or rage.

1) enlarged

2) shrank

3) turned bright red

4) became pale

5) secreted great quantities of gastric juice

7.7 The fact that meat was digested by gastric juice, but not by acid alone lead to the idea that

1) The stomach contained a protease.

2) The stomach contained a lipase.

3) The stomach contained an amylase.

4) The stomach contained mucus.

5) All of the above

7.8 Pepsinogen is secreted in the_____________.

1) mouth

2) stomach

3) small intestine

4) large intestine

5) pancreas

7.9 Stomach acid is secreted by______________.

1) chief cells

2) parietal Cells

3) mucosal Cells

4) capillary cells

5) cells of the salivary glands

7.10 Heidenhain noticed that the large vesicles that were in chief cells of the gastric mucosa disappeared after the dog ate. He concluded that:

1) The vesicles contained an appetite suppressant

2) The vesicles contained an acid

3) The vesicles contained a digestive enzyme

4) The vesicles contained an appetite stimulant

5) The vesicles are the site of respiration

7.11 Pavlov showed that when a dog sees or smells agreeable food,

1) the salivary glands secrete lipase

2) the salivary glands secrete gastric juice

3) the salivary gland secrete amylase

4) the salivary glands stop secreting amylase

5) the salivary glands stop secreting lipase

7.12 A dog secreting saliva in response to a stimulus associated with food and not by food itself is an example of:

1) Unconditional love

2) An unconditioned response

3) A conditioned response

4) A response controlled by the liver

5) A response controlled by the pancreas

7.13. Using X-rays, Walter B. Cannon noticed that ______________in an enraged cat.

1) the stomach secreted large quantities of stomach acid

2) the stomach secreted large quantities of pepsinogen

3) the stomach stopped churning

4) the stomach became ulcerated

5) all of the above

7.14. The fight or flight response directs nutrient- and oxygen-rich blood away from the _________ and to the ___________.

1) stomach; heart and skeletal muscles

2) heart and skeletal muscles; stomach

3) heart; skeletal muscles

4) skeletal muscles; heart

5) heart; genitalia

7.15. The ordeal by rice used in courts in Burma and India is based on the fact that fear prevents the secretion of

1) HCl.

2) pesinogen.

3) amylase.

4) vitamin A.

5) none of the above.

7.16 Most ulcers are caused by ___________.

1) Stress

2) Too many high density lipoproteins

3) Helicobacter

4) An excess of fat soluble vitamins

5) Too many low density lipoproteins

7.17 “The specific disease must be induced into a healthy host when a pure culture of the bacterium is inoculated into it.” is one of

1) Occam’s postulates

2) Aristotle’s posulates

3) Koch’s postulates

4) Harvey’s postulates

5) Descartes’ postulates

7.18. Meat tenderizers are extracts from papaya or pineapple that contain

1) vitamin C

2) proteases

3) p-protein

4) vitamin B1

5) vitamin B3

7.19. Barry Marshall’s ingested Helicobacter because

1) there was no animal model for ulcers

2) he was a scientific hero

3) he wanted to fulfill Koch’s postulates

4) he wanted to show that ulcers were caused by bacteria and not only by stress

5) all of the above

7.20. Tagamet binds to the H2 histamine receptor to prevent the secretion of________.

1) gastric juice

2) blood plasma

3) tears

4) mucus

5) all of the above

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