30.3 Human Digestive System

Question 1

What is the purpose of the Human Digestive System

Answer 1

to convert food into useful molecules and nutrients

Question 2

How many main steps does the digestive system have

Answer 2

4

Question 3

What are the main steps of the digestive system

Answer 3

1) Ingestion
2) Digestion
3) Absorption
4) Elimination

Question 4

Ingestion

Answer 4

to take in food

Question 5

What do humans take in food through

Answer 5

their mouths

Question 6

Digestion

Answer 6

taking the food and breaking it down

Question 7

How many forms/parts of digestion are there

Answer 7

2

Question 8

What are the 2 forms/parts of digestion

Answer 8

Mechanical and Chemical Digestion

Question 9

Mechanical Digestion

Answer 9

physical break down of food

Question 10

Chemical Digestion

Answer 10

enzymes that convert the food into something else

Question 11

Absorption

Answer 11

absorb the monomers into the bloodstream

Question 12

Elimination

Answer 12

create shit

Question 13

How many types of digestion occur in the mouth

Answer 13

both - chemical and mechanical

Question 14

What is the first step of the digestive system

Answer 14

eating food WOAH

Question 15

2nd step of the digestive system

Answer 15

mechanical digestion

Question 16

Where is the first area where mechanical digestion occurs

Answer 16

the mouth with the teeth

Question 17

How many different types of teeth are there

Answer 17

4

Question 18

What are the 4 types of teeth

Answer 18

1) Incisors
2) Canines
3) Pre-molars
4) Molars

Question 19

Incisors

Answer 19

first teeth (in the front) for tearing

Question 20

Canines

Answer 20

Second set of teeth; also for tearing

Question 21

Pre-molars

Answer 21

before the molars WOAH; 3rd set of teeth; for grinding

Question 22

Molars

Answer 22

Last set of teeth all the way in the back; 4th set of teeth; also for grinding

Question 23

How do the teeth mechanically digest food

Answer 23

they mechanically break down the food so they can be easily chemically digested + the tongue gland also manipulates it

Question 24

How does the mouth chemically digest food

Answer 24

the salivary glands secrete saliva into the mouth which coats food, making it moister and easier to chew + and secretes enzymes that break down the food

Question 25

Why do salivary glands secrete saliva

Answer 25

bc u hungry

Question 26

How many salivary glands do humans have

Answer 26

2

Question 27

Saliva contains ____

Answer 27

mucus

Question 28

Saliva begins chemical digestion with ______ which has ____

Answer 28

amylase; lysozyme

Question 29

Amylase

Answer 29

an enzyme that is in saliva which breaks down polysaccharides into disaccharides and also breaks down bonds in starches which forms sugar

Question 30

Lysozyme

Answer 30

an enzyme that is in salivary amylase which kills bacteria by digesting their cell walls

Question 31

What does lysozyme protect us against

Answer 31

viruses, infections, etc.

Question 32

Is lysozyme always effective

Answer 32

no

Question 33

When salivary amylase breaks down the polysaccharides into dissacharides what do they form

Answer 33

bolus

Question 34

Where does the bolus pass by first after it is created in the mouth

Answer 34

the pharyznx

Question 35

What aids the bolus pass through the pharynx

Answer 35

the tongue which pushes it down

Question 36

Pharynx