Digestive System Worksheet
Fill in the
blanks
1. _______________plays
a key role in digestion of food.
2. Digestive
System consist of ___________and _____________.
3. Alimentary
canal is about _________metres long
4. The last
molar on each side of each jaw is called ___________tooth.
5. Saliva is
secreted by ______________pair of salivary glands
6. In a tooth
____________is the hardest part
7. ___________tube
conducts the food from the throat to th stomach
8. The
opening of the stomach into the
intestine is called pylorus
9. Pepsin is
first secreted as __________which is then changed to pepsin by ________.
10.
The food stays in the stomach for about ________hours
and it is converted to a pulp like substance
called _________
11.
_________is the last part of large intestine.
12.
Pancreatic juice contains three of enzymes called
__________,_________and ________.
13.
Bile is _________colored fluid which is produced in
__________
14.
The color of the bile is due to the pigments called
_________and __________.
15.
___________is the largest gland in human body .
Answer the
following Questions
1. Give any 3
characteristics of enzyme.
2. Give one
function of mouth, lips and tongue
3. Name
different kinds and how many of each teeth we have?
4. Explain the
structure of teeth?
5. Give any
three functions of Saliva?
6. What is
gastric juice and where is it juice secreted ?
7. What is
roughage ? Give two examples
Fill in the blanks Answers
Ans. 1) enzyme
2) alimentary canal , digestive glands
3) 9 meters
4) wisdom tooth
5) Enamel
6) three
7) Oesophagus
8)Pylorus
9) Pepsinogen , acid
10) 3hours, chime
11) rectum
12)Amylopsin, Trypsin and Steapsin
13) Greenish yellow, liver
14) biliverdin, bilirubin
15)Liver
