B04 Digestion

Question 1

Define mechanical/physical digestion

Answer 1

The cutting and crushing action of the teeth as feeding takes place as well as the rhythmical contractions of the guy and stomach

Question 2

Define chemical digestion

Answer 2

The breaking down of food or food molecules by acids and enzymes within the digestive system

Question 3

Define ingestion

Answer 3

The consumption of food/food molecules into the body

Question 4

Why is it important for food to be chemically digested?

Answer 4

It converts the food into the nutrients which are needed for the body. It allows nutrients to be absorbed into the bloodstream.

Question 5

What happens during the assimilation of digested food?

Answer 5

The digested food becomes the components for parts of the body, which can be stored or consumed by the metabolic system

Question 6

Where does digestion occur

Answer 6

Mouth cavity. Stomach. Small intestine.

Question 7

Where does the absorption of digested food molecules occur

Answer 7

Small intestine

Question 8

Where does the absorption of water occur

Answer 8

The large intestine

Question 9

Where does egestion occur

Answer 9

Large intestine. Anus.

Question 10

What is the alimentary canal

Answer 10

A long coiled tube that is 7-9 meters long. At one end food is ingested and the undigested remains of a meal are egested through the anus. Digestion and absorption occur in between.

Question 11

Use of salivary gland

Answer 11

Contains amylase that breaks down starch into maltose

Question 12

Use of gall bladder

Answer 12

Produces bile to neutralize stomach acid

Question 13

Use of pancreas

Answer 13

Contains lipase and carbohydrase to break down fats and carbohydrates

Question 14

Define peristalsis

Answer 14

The action of the muscle moving food along the alimentary canal

Question 15

Use of incisor

Answer 15

For cutting and snipping at food

Question 16

Use of canine

Answer 16

For tearing at food

Question 17

Use of premolar

Answer 17

Tearing and crushing food

Question 18

Use of molar

Answer 18

Crushing and grinding food

Question 19

Enamel

Answer 19

Extremely hard material forming sharp points and edges

Question 20

Dentine

Answer 20

Hard bone like material containing living cells

Question 21

Pulp cavity

Answer 21

Central space containing nerves and blood supply l

Question 22

Nerves in teeth

Answer 22

Sensory endings that respond to join hot and cold

Question 23

Cement

Answer 23

Helps attach root to jaw and acts as shock absorber

Question 24

Blood vessels in teeth

Answer 24

Supply food and oxygen to the living cells of tooth

Question 25

Gum

Answer 25

Soft tissue surrounding teeth

Question 26

Crown

Answer 26

Part of tooth above gum

Question 27

Root

Answer 27

Part of teeth under gum

Question 28

Define digestion

Answer 28

The process in which food is broken down and processed in the body

Question 29

What is tooth decay caused by?

Answer 29

Sugary food, acidic diet, vomiting, bad dental hygiene, acid

Question 30

Define plaque

Answer 30

A bulls up of materials that was not originally there

Question 31

Where is amylase produced

Answer 31

Salivary glands and pancreas

Question 32

Where is protease produced

Answer 32

Stomach and pancreas

Question 33

Where is lipase produced

Answer 33

Pancreas

Question 34

What does amylase break down and what does it produce

Answer 34

Breaks down starch, produces maltose

Question 35

What does protease break down and what does it produce

Answer 35

Breaks down protein, produces amino acids

Question 36

What does lipase break down and what does it produce

Answer 36

Breaks down fats, produces fatty acids and glycerol