7.2 Flashcards Preview

Chapter 7 Science > 7.2 > Flashcards

Flashcards in 7.2 Deck (16):
1

Digestion is the process by which...

Food is broken down and absorbed into your blood for transport to your cells.

2

Physical digestion...

Is physically breaking down the food so it is easier to digest.

3

The main tool needed for physical digestion are the...

Teeth

4

We have 3 types of teeth...

Incisors, canines and molars.

5

Incisors...

Bite into food

6

Canines...

Tear the food

7

Molars...

Grind the food

8

We also have a large muscular organ known as ...

A tongue in our mouths.

9

When we swallow a process known as...

Peristalsis occurs.

10

Peristalsis is...

The contraction and relaxation of muscles in the oesophagus as food is swallowed.

11

Chemical digestion is when...

Food is chemically broken down.

12

In the mouth (something) is made mainly of (something) and different types of (something).

Saliva, water, enzymes

13

Enzymes are...

Chemicals that can speed up a reaction

14

Where are nutrients absorbed...

The small intestine.

15

Inside the small intestine are little ridges known as...

Villi.

16

Villi can...

Increase the surface area that nutrients pass over.