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WorksheetsDigestion
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
Which of the following explains the excretion process of digestion?
a)
It is the process of breaking down food into simple substance our body can absorb.
b)
It is the elimination of undigested food that were not absorb by the body
c)
It Is the absorption and circulation of nutrients in the body.
d)
It is the process of supplying the cell with nutrients.
2.
Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids. Both digestive processes . . .
a)
occur inside cells in most animals
b)
add a water molecule to break bonds
c)
require a low pH resulting from HCl production
d)
consume ATP
3.
Which of the following organs is INCORRECTLY paired with its function?
a)
stomach - protein digestion
b)
large intestine - bile production
c)
small intestine - nutrient absorption
d)
pancreas - enzyme production
4.
End products formed after the breakdown of lactose are _________
a)
Fructose and galactose
b)
Sucrose and glucose
c)
Glucose and fructose
d)
Glucose and Galactose
5.
Nucleotidases are secreted by ________
a)
Pancreas
b)
Small intestine
c)
Stomach
d)
Large intestine
6.
Which enzyme below is involved in the following chemical digestion process?
FATS---->FATTY ACIDS/GLYCEROL
FATS---->FATTY ACIDS/GLYCEROL
a)
Lipase
b)
Trypsin
c)
Amylase
d)
Pepsin
7.
Which enzyme below is involved in the following chemical digestion process?
PROTEINS---->POLYPEPTIDES
PROTEINS---->POLYPEPTIDES
a)
Lipase
b)
Amylase
c)
Pepsin
d)
Maltase
8.
As food travels through the digestive system, it is exposed to a variety of pH levels. The stomach has a pH of 2 due to the presence of hydrochloride acid (HCl), and the small intestine has a pH ranging from 7 to 9. HCl converts pepsinogen into pepsin, an enzyme that digests proteins in the stomach. Which of the following most likely happens to pepsin as it enters the small intestine?
a)
It becomes inactive.
b)
It begins to replicate.
c)
It's shape changes to engulf large proteins.
d)
It's activity increases to digest more proteins.
9.
Babies do not have well developed digestive systems for breaking down proteins; therefore baby food is prepared after treatment with which enzyme?
a)
protease
b)
lipase
c)
carbohydrase
d)
synthase
10.
The optimum pH at which lipase is most efficient is
a)
3
b)
7
c)
5
d)
9
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