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2.1 Human Digestive System

Total questions: 35

Worksheet time: 19mins

Name
Class
Date
1.
What is the function of the Digestive System?
a)
break down food into nutrients and gets rid of waste
b)
takes in oxygen and releases carbon dioxide
c)
sends messages to your body
d)
provides a structure and support for your body
2.
What is the first step to the digestive system where food is broken down by your teeth?
a)
stomach
b)
esophagus
c)
mouth
d)
tongue
3.
Where are nutrients absorbed and waste forms?
a)
small intestine
b)
large intestine
c)
small and large intestine
d)
none of the above
4.
Bile is made by which digestive organ?
a)
Gallbladder
b)
Stomach
c)
Rectum
d)
Liver
5.
Which digestive organ makes digestive juices to help the small intestine absorb nutrients?
a)
Liver
b)
Gallbladder
c)
Pancreas
d)
Esophagus
6.

Number 4 is pointing to the....

a)

stomach

b)

Rectum

c)

Large Intestine

d)

Small intestine

7.
Which structure is a 'trapdoor' that prevents food from entering the trachea?
a)
epiglottis
b)
esophagus
c)
pharynx
d)
appendix
8.
Which structure is responsible for water absorption and production of Vitamin K?
a)
epiglottis
b)
Stomach
c)
Large intestine
d)
Small intestine
9.
Where does chemical digestion begin?
a)
Mouth
b)
esophagus
c)
stomach
d)
small intestine
10.
Where does absorption of food occur in the digestive system?
a)
small intestine
b)
large intestine
c)
stomach
d)
epiglottis
11.
____________ is when smooth muscles contract to gently move food through the alimentary canal.  It begins with swallowing.
a)
bolus
b)
peristalsis
c)
ulcer
d)
amylase
12.
Which is the correct pathway that food takes through the alimentary canal?
a)
mouth, stomach, esphagus, small intestine, large intestine, rectum
b)
mouth, esophagus, stomach, small intestine, large intestine, rectum
c)
mouth, esophagus, small intestine, large intestine, stomach, rectum
d)
rectum, rectum, rectum.  Anal retentive teacher
13.
What is secreted in the stomach to kill bacteria?
a)
amylase
b)
Hydrochloric acid
c)
Sodium bicarbonate
d)
bile
14.
Which organ makes enzymes (lactase, amylase, protease, maltase) to break down the food that you eat?
a)
gallbladder
b)
liver
c)
pancreas
d)
rectum
15.
Where does physical digestion occur in the digestive system?
a)
pancreas and liver
b)
mouth and small intestine
c)
stomach and small intestine
d)
mouth and stomach
16.
Name this structure
a)
duodenum
b)
jejunum
c)
ilium
d)
cecum
17.
Name structure 8
a)
hard palate
b)
soft palate
c)
pharynx
d)
layrnx
18.
Name this structure
a)
spleen
b)
gall bladder
c)
pancreas
d)
jejunum
19.
Name this structure
a)
ilium
b)
jejunum
c)
duodenum
d)
cecum
20.
What  does not occur here?
a)
mechanical digestion
b)
chemical digestion
c)
absorption
d)
all occur here
21.
This region of the colon would be called....
a)
ascending
b)
transverse
c)
descending
d)
sigmoid
22.

Substances in food that the body needs to function properly are:

a)

nutrition

b)

macromolecules

c)

calories

d)

nutrients

23.

Which of the following would be considered an essential nutrient?

a)

fat

b)

carbohydrates

c)

proteins

d)

fiber

e)

sugar

24.

Proteins break down to:

a)

fatty acids

b)

nucleic acids

c)

amino acids

d)

hydrochloric acids

25.

Which of the following enzymes breaks down starch?

a)

Carbohydrase

b)

Amylase

c)

Starchase

d)

Lipase

26.

What is the function of enterokinase?

a)

Activates trypsinogen to convert to tripsyn

b)

Digests starch

c)

Digests proteins

d)

Activates tripsyn to convert to tripsynogen

27.

What would happen to the pH of food contents from the stomach when sodium hydrogen carbonate is added by the pancreas?

a)

It will become acidic

b)

It will become alkaline

c)

It will not change

d)

It will be neutralised

28.

What structures in the ileum increase surface area for digestion?

a)

Villi

b)

Microvilli

c)

Mitochondria

d)

Rough endoplasmic reticulum

29.

What organelles are present in high numbers in the endothelium of the ileum increase surface area for digestion?

a)

Villi

b)

Microvilli

c)

Mitochondria

d)

Rough endoplasmic reticulum

30.

Which of the following are water soluble?

a)

Amino acids

b)

Vitamin A

c)

Glucose

d)

Vitamin C

31.

Which cells in the stomach lining produce hydrochloric acid?

a)

Goblet cell

b)

Zymogen (chief) cell

c)

Enteroendocrine cell

d)

Oxyntic cell

32.

Which cells in the stomach lining produce pepsin and renin?

a)

Goblet cell

b)

Zymogen (chief) cell

c)

Enteroendocrine cell

d)

Oxyntic cell

33.

Where in the digestive system would you find the crypts of Liberkhun?

a)

Small intestine

b)

Pancreas

c)

Large intestine

d)

Stomach

34.

Which structure of the lymphatic system can be found in the villi?

a)

Lymph node

b)

Lacteal

c)

Lymph vessel

d)

All of these

35.

What is the function of mucus in the stomach?

a)

All of these

b)

Protect stomach lining from protease enzymes that would otherwise digest it

c)

Lubricate food

d)

Protect stomach lining from hydrochloric acid which is corrosive.

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