Font size
S
M
L
XL
WorksheetsPractice Quiz on Crash Course: Digestive System, Part 2
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
This location is where mechanical and chemical digestion starts: (I) buccal cavity, (II) ingestion, (III) mouth, (IV) oral cavity.
a)
III only
b)
I and IV only
c)
III and IV only
d)
All except III
e)
All of these
2.
The _____ forms the roof of the mouth and helps with food manipulation, while the _____ closes off the nasopharynx to direct food to the esophagus.
a)
teeth, tongue
b)
teeth, soft palate
c)
soft palate, hard palate
d)
hard palate, soft palate
e)
hard palate, tongue
3.
What is the term for the mass of food formed in the mouth for swallowing?
a)
bolus
b)
chyme
c)
epiglottis
d)
saliva
4.
Which of the following is NOT true about saliva?
a)
consists of 97 to 99.5 % water
b)
slightly acidic, w/ pH of 6.75 to 7
c)
contains amylase that breaks down lipids
d)
has antibodies and bacterial-fighting enzymes
5.
Which of the following is NOT paired with it’s correct function?
a)
small intestine: absorption of nutrients
b)
mouth: propulsion of food to the stomach via peristalsis
c)
stomach: storage of food, mechanical and chemical digestion
d)
teeth and tongue: mechanical breakdown and manipulation of food
6.
What special feature does the stomach’s muscularis layer have?
a)
An additional smooth muscle layer for extra strength
b)
Mucous cells that produce a protective coat against self-digestion
c)
The ability to secrete enzymes that accomplish chemical digestion
d)
A highly acidic environment that kills bacteria and viruses and denatures proteins
7.
True or false: The stomach is able to store food, mechanically and chemically break down food, and absorb certain substances.
a)
True
b)
False
8.
Which of the following cells is CORRECTLY paired with its secretion?
a)
chief cells: gastrin
b)
enteroendocrine cells: hormones
c)
G cells: HCl
d)
parietal cells: pepsinogen
9.
What enzyme is activated by hydrochloric acid to help digest proteins in the stomach?
a)
amylase
b)
lipase
c)
pepsin
d)
trypsin
10.
Identification: What substance is an inactive enzyme released by chief cells?
(a)
11.
What hormone is responsible for stimulating the release of gastric fluids in the stomach?
a)
gastrin
b)
histamine
c)
serotonin
d)
somatostatin
12.
Which phase of digestion is triggered by sensory inputs such as sight, smell, or thought of food?
a)
absorptive phase
b)
cephalic phase
c)
gastric phase
d)
intestinal phase
13.
Fill in the blanks: In the (a) phase of digestion, the stomach is distended from food and sends signals to produce gastric juices.
14.
Factors that trigger the stomach to purge or vomit include the following, EXCEPT:
a)
emotions, anxiety
b)
too much food ingested
c)
presence of irritant or toxin
d)
peristalsis of the esophagus
15.
What is the term for the semi-digested food that moves from the stomach to the small intestine?
a)
bolus
b)
chyme
c)
feces
d)
gastric fluids
16.
Poll: Which gastric fluid do you identify with the most?
a)
gastrin
b)
HCl
c)
pepsin
d)
pepsinogen
Reset
