WorksheetsThe Process of Digestion (El procés de la digestió)
Total questions: 20
Worksheet time: 3600secs
Name
Class
Date
1.
Why must food be digested during nutrition?
a)
Because nutrients are part of complex molecules that cells cannot absorb directly.
b)
Because the body can only use food in a liquid state.
c)
To remove the oxygen from the food.
d)
Because cells only accept inorganic molecules.
2.
How do we define digestion?
a)
It is the physical and chemical process that changes food into nutrients that cells can take in.
b)
It is just a mechanical process of crushing food.
c)
It is the stage where waste substances are expelled.
d)
It is the transport of nutrients from the stomach to the blood.
3.
Which parts of the mouth start mechanical digestion?
a)
The teeth and the tongue.
b)
The salivary glands and the pharynx.
c)
The enzymes called glycosidases.
d)
The gastric juices that come up from the stomach.
4.
What is the function of saliva during chewing?
a)
To hydrate the food and make chewing easier.
b)
To break down Proteins into amino acids.
c)
To store vitamins in the mouth.
d)
To push the food into the trachea.
5.
What is the name of the food mass in the mouth after chewing?
a)
Bolus (bol alimentari).
b)
Chyme (quim).
c)
Chyle (quili).
d)
Simple nutrient.
6.
Which enzymes break down complex carbohydrates, like starch?
a)
Glycosidases (glucosidases).
b)
Proteases.
c)
Lipases.
d)
Bile (bilis).
7.
Which part pushes the bolus down to the stomach?
a)
The esophagus (esòfag).
b)
The trachea.
c)
The duodenum.
d)
The pancreas.
8.
Which substance in the stomach contains enzymes like proteases?
a)
Gastric juices (sucs gàstrics).
b)
Bile.
c)
Saliva.
d)
Pancreatic juice.
9.
What does the bolus become after it mixes with gastric juices?
a)
A thick, acidic mass called chyme (quim).
b)
Feces (excrements).
c)
Urine.
d)
Pure glucose.
10.
Besides helping in digestion, what is another key function of the liver?
a)
To store glucose, iron, and vitamins, and remove toxic substances from the blood.
b)
To produce saliva.
c)
To pump blood to the cells.
d)
To absorb oxygen from the air.
11.
What is the function of the gall bladder?
a)
To store the bile (bilis) produced by the liver.
b)
To produce bile.
c)
To digest Proteins using gastric juices.
d)
To filter the urine.
12.
What role does the pancreas play in the body?
a)
It makes digestive juices and helps control the levels of glucose in the blood.
b)
It only produces saliva.
c)
It is the main organ for absorbing water.
d)
It prevents food from entering the trachea.
13.
What are the three parts of the small intestine?
a)
Duodenum, jejunum, and ileum.
b)
Mouth, esophagus, and stomach.
c)
Liver, gall bladder, and pancreas.
d)
Large intestine, rectum, and anus.
14.
Why are the walls of the small intestine covered in villi?
a)
To increase the surface area for a faster absorption of nutrients.
b)
To protect the organ from the stomach acid.
c)
To produce bile.
d)
To move the feces to the anus.
15.
What is the main function of the large intestine?
a)
To absorb water and minerals from the undigested food.
b)
To start the digestion of Proteins.
c)
To produce glycosidases.
d)
To store the bolus.
16.
What is the main function of the rectum?
a)
To collect and compact waste materials to form feces.
b)
To produce digestive enzymes.
c)
To absorb glucose into the blood.
d)
To filter the urine.
17.
What is the function of the epiglottis?
a)
It acts like a lid that stops food from going into your breathing system.
b)
To produce saliva to moisten the food.
c)
To push the bolus into the small intestine.
d)
To store the bile.
18.
What do we call the organs that secrete digestive juices?
a)
Digestive glands (glàndules digestives).
b)
Respiratory system.
c)
Blood vessels.
d)
Muscles.
19.
Which enzymes in the stomach help break down Proteins?
a)
Proteases (proteases).
b)
Glycosidases.
c)
Lipases.
d)
Saliva.
20.
Which enzymes break down large fat molecules into smaller ones?
a)
Lipases (lipases).
b)
Glycosidases.
c)
Peptidases.
d)
Saliva.
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