Digestion 2
Foods high in carbohydrate include candies.

Digestion 2

This Science quiz is called 'Digestion 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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In humans, the large intestine is roughly 1.5 meters long, whereas the small intestine can be up to 7 meters long. Confused? The 'large' and 'small' pertain to the diameter rather than the length!

Try this Science quiz on digestion and find out some more interesting facts.

1.
The small intestine has special structures, called villi, which help absorption of digested food. Which of the following is NOT a feature?
Good blood supply
Impermeable walls
Large surface area
Thin layer of cells
The walls are permeable to allow absorption to occur
2.
The small molecules are absorbed into the blood in the .......
large intestine
pancreas
small intestine
stomach
3.
Glucose is stored in the .......
liver
pancreas
small intestine
stomach
It is released when needed
4.
What does the large intestine do?
Absorbs digested food into the blood
Absorbs water from the gut
Makes bile to break down fats
Makes enzymes
5.
Iodine solution is a yellow-brown color and is used to test for starch. If starch is present it turns .......
blue-black
milky
orange-red
purple
6.
The removal of undigested food is called .......
absorption
contraction
egestion
excretion
7.
The small intestine in an adult is .......
1-2 meters long
6-7 meters long
10-11 meters long
over 20 meters long
8.
Fats are stored .......
in the large intestine
in the pancreas
in the stomach
under the skin
9.
What does the pancreas do?
Absorbs digested food into the blood
Absorbs water from the gut
Makes bile to break down fats
Makes three enzymes
10.
What does the liver do?
Absorbs water from the gut
Makes bile to break down fats
Makes enzymes
Stores glycerol
This is just one of the functions of the liver
Author:  Sue Davison

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