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7th Grade 2.2.3 Quiz

Last updated about 3 years ago

9 questions

1

1

1

1

2

5

1

5

1

Question 1

1.

What is the function of peristalsis?

to chemically digest food to release nutrients

to absorb nutrients into the blood

to remove excess liquid from the body

to move food through the digestive system

Question 2

2.

When does the first step of digestion usually occur?

when the nutrients are absorbed

when the organism discovers the food

when the food is chewed

when the food is swallowed

Question 3

3.

Food enters the human body through the _____.

intestine

mouth

esophagus

liver

Question 4

4.

Digestion begins in the mouth with chewing and food mixing with _______, which begins to break down food.

Question 5

5.

Order the following steps in the digestion process.

Food is ingested
Food is digested
Nutrients and water in the food are absorbed
Undigested food is eliminated

Question 6

6.

Using complete sentences, explain why is it necessary to have both mechanical and chemical digestion?

Question 7

7.

_______ is an example of mechanical digestion and _______ is an example of chemical digestion.

Question 8

8.

Using a complete sentence, explain how the respiratory system and the skin play a role in in the excretory system.

Question 9

9.

Absorption in the small intestines occurs through the walls of fingerlike projections called _______ .