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11 ATAR Human Bio - Digestive System

Total questions: 64

Worksheet time: 34mins

Name
Class
Date
1.
Releases salivary amylase into mouth which helps break down carbs.
a)
esophagus
b)
stomach
c)
epiglottis
d)
salivary glands
2.
Churns and mixes food, produces acid to kill pathogens & pepsin to digest proteins.
a)
stomach
b)
liver
c)
gall bladder
d)
pancreas
3.
Makes bile, detoxifies blood that carries nutrients from the small intestines.
a)
liver
b)
gall bladder
c)
pancreas
d)
large intestines
4.
helps neutralize stomach acid, secretes enzymes for digestion of fats, carbs, and proteins, and regulates blood sugar levels.  
a)
pancreas
b)
stomach
c)
gall bladder
d)
appendix
5.
stores excess bile made by the liver.
a)
large intestines
b)
small intestines
c)
pancreas
d)
gall bladder
6.
digest food in the first part and then absorbs nutrients in the second and third part.  
a)
large intestines
b)
small intestines
c)
liver
d)
appendix
7.
Which biomolecule is made of amino acids?
a)
Nucleic Acid
b)
Carbohydrate
c)
Protein
d)
Lipid
8.
Where does digestion begin?
a)
Mouth
b)
Esophagus
c)
Stomach
d)
Small Intestine
9.

What are the contents in your stomach called after mechanical and chemical digestion?

a)

Bolus

b)

Chyme

c)

Food

d)

Feces

10.
a)

ascending colon

b)

descending colon

c)

transverse colon

d)

rectum

11.

duodenum

a)
b)
c)
d)
12.

esophagus

a)
b)
c)
d)
13.

A physical process in which large pieces of food are torn and ground into smaller pieces

a)

peristalsis

b)

chyme

c)

chemical digestion

d)

mechanical digestion

14.
Digestive organ where most chemical digestion and absorption of food takes place through villi
a)
esophagus 
b)
rectume
c)
large intestine
d)
small intestine
15.

Peristalsis are wave-like contractions that move food through the digestive organs.

a)

True

b)

False

16.
Mastication is a ___________ process of the digestive system.
a)
mechanical
b)
chemical
c)
microbiological
17.
Region where chyme enters the small intestine is known as ______________.
a)
colon
b)
ileum
c)
jejunum
d)
duodenum
18.
Pancreas secretes pancreatic juice through the ___________________.
a)
bile duct
b)
liver
c)
pancreatic duct
d)
gastric glands
19.
Which substance breaks up large fat droplets into tiny fat droplets?
a)
bile
b)
lipase
c)
pancreatic juice
d)
intestinal juice
20.

What are the finger-like projections in the folds of the small intestine called?

a)

cilia

b)

villi

c)

tail

d)

flagella

21.
What are the smaller folds found on and around the villi?
a)
microcilia
b)
macrovilli
c)
intestinal glands
d)
microvilli
22.
Walls of the ileum are lined with _____________ that secrete intestinal juice.
a)
gastric glands
b)
salivary glands
c)
intestinal glands
d)
pancreatic glands
23.
The villi is adapted for the process of _____________________.
a)
digestion
b)
assimilation
c)
absorption
d)
ingestion
24.
What does the large intestine do?
a)
Eats
b)
Chews
c)
Removes water from waste
d)
Absorbs nutrients
25.
Identify
a)
Large Intestine
b)
Small Intestine
c)
Stomach
d)
Rectum
26.
Identify
a)
Large Intestine
b)
Small Intestine
c)
Stomach
d)
Rectum
27.
Enzymes are considered to be 
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
28.
What is the purpose  of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
29.
What 3 letters do enzymes typically end in?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
30.
What is the function of the villi?
a)
secretes enzymes
b)
decreases absorption
c)
increases surface area
d)
creates bile
31.
Where does protein digestion begin?
a)
mouth
b)
stomach
c)
liver
d)
small intestine
32.
Fats are broken down into...
a)
amino acids
b)
fatty acids and glycerol
c)
glycerol
d)
glucose
33.
Carbohydrates are broken down into...
a)
amino acids
b)
fatty acids and glycerol
c)
glycerol
d)
glucose
34.

Which enzyme below is involved in the following chemical digestion process?

PROTEINS---->POLYPEPTIDES

a)

salivary amylase

b)

pancreatic amylase

c)

gastric protease

d)

intestinal protease

35.
Where in the body would HCl be found?
a)
Mouth
b)
Esophagus
c)
Liver
d)
Stomach
36.
How is food propelled in the large intestine? 
a)
fast peristalsis
b)
slow peristalsis
37.

This is the long tube that propels food from your mouth to your stomach.

a)

trachea

b)

cardiac sphincter

c)

esophagus

d)

Fundic

38.
Your small intestine completes the process of chemical break down with help from these two organs:
a)
Stomach & Liver
b)
Liver & Kidneys
c)
Liver & Pancreas
d)
Liver & Large Intestine
39.
All your blood leaves your stomach and small intestine and goes directly to this organ.
a)
pancreas
b)
bile duct
c)
large intestine
d)
liver
40.
The liver's function is to break down these:
a)
toxins
b)
alcohol
c)
medicines
d)
all three
41.
Solid waste is temporarily stored in this organ, before being pushed through the anus.
a)
esophagus
b)
rectum
c)
pancreas
d)
liver
42.
The ground food in the mouth is called:
a)
salivary amylase
b)
chyme
c)
bile
d)
bolus
43.
Peristalsis involves the contraction of these layers of muscle:
a)
superior and inferior
b)
longitudinal and circular
c)
smooth and rough
d)
fast and slow
44.
Absorption of nutrients into the bloodstream happens through:
a)
diffusion
b)
active transport
c)
both of these
d)
neither of these
45.

The walls of the small intestine have these, which increase surface area:

a)

folds

b)

villi

c)

microvilli

d)

rugae

46.
The large intestine is _____ in diameter than the small intestine:
a)
narrower
b)
longer
c)
shorter
d)
wider
47.
We need to eat foods with these vitamins everyday.
a)
B & C
b)
Fat soluble
c)
A, B, E, K
d)
none of these
48.
This is the primary function of carbohydrates.
a)
To repair body tissues
b)
To rehydrate the body
c)
To provide fuel for the body
d)
To clot blood
49.
The primary functions of proteins
a)
Regulate body processes
b)
Main source of energy
c)
Maintain body temperature
d)
Build, repair and maintain the body
50.
The role of water in the body
a)
Provide energy
b)
Insulate the body
c)
Repair cells
d)
Take away waste and regulate body temperature
51.
Fat soluble vitamins include
a)
A,B,C,D
b)
A,C,E,K
c)
A,D,E,K
52.
Vitamin D is needed to absorb calcium
a)
True
b)
False
53.

Lack of this vitamin causes Scurvey

a)

Vitamin D

b)

Vitamin C

c)

Vitamin E

d)

Niacin

54.

Where does chemical digestion of proteins begin?

a)

Mouth

b)

Esophagus

c)

Stomach

d)

Small Intestine

55.

What breaks down starch into polysacharides?

a)

salivary amylase

b)

pancreatic amylase

c)

pancreatic protease

d)

intestinal amylase

56.

What breaks down polysacharides into disacharides?

a)

salivary amylase

b)

pancreatic amylase

c)

pancreatic protease

d)

intestinal amylase

57.

What breaks down disacharides into monosacharides?

a)

salivary amylase

b)

pancreatic amylase

c)

pancreatic protease

d)

intestinal amylase

58.

What breaks down proteins into polypeptides?

a)

salivary amylase

b)

gastric protease

c)

pancreatic protease

d)

intestinal protease

59.

What breaks down polypeptides into dipeptides?

a)

salivary amylase

b)

gastric protease

c)

pancreatic protease

d)

intestinal protease

60.

What breaks down dipeptides into amino acids?

a)

salivary amylase

b)

gastric protease

c)

pancreatic protease

d)

intestinal protease

61.

What process breaks up fat and oils into smaller goblets using bile?

a)

emulsification

b)

pancreatic lipase

c)

intestinal lipase

d)

lacteals

62.

What breaks fats and oils into lipids?

a)

emulsification

b)

pancreatic lipase

c)

intestinal lipase

d)

lacteals

63.

What breaks lipids into fatty acids and glycerol?

a)

emulsification

b)

pancreatic lipase

c)

intestinal lipase

d)

lacteals

64.

What absorbs fatty acids in the small intestine?

a)

emulsification

b)

pancreatic lipase

c)

intestinal lipase

d)

lacteals

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