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1- The stomach begins chemical digestion of which of these substances? Select on

ID: 280833 • Letter: 1

Question

1- The stomach begins chemical digestion of which of these substances?


Select one:

a. proteins

b. sugars

c. fats

d. carbohydrates


2- Hemodialysisis the filtration of the blood using artificial devices because of failure or impairment of the kidneys.


Select one:

True

False

3- The innermost lining of the gastrointestinal tract is the ________.

Select one:

a. muscularis

b. mucosa

c. submucosa

d. serosa


4-Where are neurotransmitters stored in a neuron?


Select one:

a. dendrites

b. cell body

c. synaptic knob

d. axon

5-A doctor who suspects that a foodborne disease was caused by a virus will ________.


Select one:

a. examine the stool sample for genetic markers

b. examine the stool sample under a microscope

c. culture the stool sample

d. look for oocysts in the stool sample

6-Which of the following bacteria is found in improperly canned foods and produces a toxin that can cause paralysis of muscles and breathing problems?

Select one:

a. Escherichia coli

b. Clostridium botulinum

c. Cryptosporidium parvum

d. Salmonella

7-Gloria was enjoying a soft drink but started to choke because this structure did not cover the opening in the larynx through which air passes.





Select one:

a. glottis

b. epiglottis

c. larynx

d. pharynx

8-An action potential would most commonly arrive from which of the following structures before arriving at the axon?


Select one:

a. dendrite

b. synapse

c. glial cell

d. cell body

9-Schwann cells form the myelin sheath, which wraps around the axon, to insulate against short-circuiting between neurons.

Select one:

True

False

10- Samara is an astronaut in deep space away from gravity. How could her urine move away from the kidneys and to the bladder in such a situation?


Select one:

a. the Valsalva maneuver

b. peristalsis

c. skeletal muscle movements

d. bladder suction pressure

Explanation / Answer

1. Option a is the correct answer. Chemical digestion of carbohydrates, sugars and fats begin in mouth by the lingual enzymes amylase and lipase. Digestion of proteins begin in stomach.

2. True.

3. Option b is correct.

4. Option c is correct.

5. Option a is correct.

6. Option b is correct.

7. Option b is correct.

8. Option d is correct.

9. True.

10. Option d is correct.