WorksheetsDigestive System
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
Food is digested in a gastrovascular cavity with one opening and one exit by intracellular digestion and then absorbed by individual cells.
a)
True
b)
False
2.
In relationship to digestion, which of the following is true?
a)
Lipids are broken down into fatty acids and glycerol
b)
Carbohydrates are broken down into individual monosaccharides or simple sugars
c)
Proteins are broken down into individual amino acids
d)
All listed are true statements
3.
Which of the following statements about carbohydrates is not true?
a)
glucose, fructose, and galactose are simple sugars
b)
the disaccharide sucrose is composed of glucose and fructose
c)
ribose and deoxyribose are examples of monosaccharides
d)
amylose and glycogen are examples of plant polysaccharides
4.
Which of the following statements about enzymes is not true?
a)
a single enzyme can catalyze a variety of different substrates
b)
enzymes have a pocket known as the active site where substrates are acted upon
c)
enzymes speed up chemical reactions by lowering the activation energy of the reaction
d)
enzymes are catalytic proteins
5.
Which of the following is not a part of digestion?
a)
ingestion
b)
absorption
c)
perastasis
d)
elimination
6.
The correct order of parts of the digestive system are: mouth, pharynx, esophagus, pyloric sphincter, stomach, cardiac sphincter, duonenum, jejunum, ileum, colon, rectum, anus.
a)
True
b)
False
7.
Which of the following does not play a role in digestion?
a)
salivary glands
b)
spleen
c)
liver
d)
pancreas
8.
The mouth is responsible for both mechanical and chemical digestion.
a)
True
b)
False
9.
Which of the following salivary glands is found below the tongue?
a)
parotid
b)
submaxillary
c)
sublingual
d)
parotid, submaxillary, sublingual
10.
The main purpose of saliva is to break down food into smaller particles.
a)
True
b)
False
11.
The ball of food that is produced before you swallow is called chyme.
a)
True
b)
False
12.
The four major groups of teeth are the incisors, canines, bicuspids, and molars.
a)
True
b)
False
13.
A normal adult has how many teeth?
a)
30
b)
32
c)
16
d)
24
14.
Which group of teeth is used for grinding?
a)
incisors
b)
canines
c)
cuspids
d)
molars
15.
The epiglottis is a flap of cartilaginous tissue that closes over the trachea during swallowing.
a)
True
b)
False
16.
The inner folds of the stomach that increase the amount of surface area are called villi.
a)
True
b)
False
17.
What enziyme in the stomach is responsible for the digestion of proteins?
a)
glucagon
b)
pepsin
c)
trypsin
d)
lipase
18.
It takes about ____ hours for food to move completely through the stomach.
a)
2
b)
4
c)
8
d)
12
19.
Most of the chemical digestion of food in the small intestine occurs in the
a)
jejunum
b)
ileum
c)
duodenum
20.
It takes about 12 hours for food to travel the length of the small intestine.
a)
True
b)
False
21.
Most of the absorption of nutrients from the process of digestion occurs in the duodenum.
a)
True
b)
False
22.
The villi and microvilli increases the surface area of the small intestine for greater absorption.
a)
True
b)
False
23.
Which of the following enzymes is not produced by the small intestine?
a)
proteolytic enzymes, such as aminopeptidase
b)
disaccharide enzymes, such as maltase
c)
fat digestive enzymes, such as lipase
d)
phosphatases that breakdown nucleic acids
24.
Which of the following statements is not true?
a)
trypsin and chymotrypsin are released by pancreas for the breakdown of proteins
b)
lipase is released by the pancreas for the breakdown of fats
c)
amylase is released by the pancreas to help digest plant starch
d)
bile is released by the pancreas for the breakdown of lipids
25.
Bile, which is released by the gallbladder, is an enzyme that also serves as an emulsyfier.
a)
True
b)
False
26.
The correct order of regions of the colon is: cecum, decending colon, transverse colon, ascending colon, rectum, anus
a)
True
b)
False
27.
It takes about 10-12 hours for food to completely travel through the large intestine.
a)
True
b)
False
28.
The main purpose of the large intestine is removal of water from undigested food.
a)
True
b)
False
29.
Which of the following is not true of the liver?
a)
it is the largest gland of the body
b)
it stores vitamin A, D, E, K
c)
it produces bile
d)
it stores bile
30.
The pancreas produces enzymes to catalyze carbohydrate, fat, and protein reactions.
a)
True
b)
False
100 %
