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Flashcards in BPK110 Chapt 3 Deck (202)
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1

What are nutrients? and what are they made up of?

Nutrients are molecules which are made up of atoms

2

What forms organs? (2 things)

Cell and tissue

3

What forms cell and tissue? (5 things)

Carbohydrates, lipids, protein, water and minerals

4

What are organ systems?

Organs which function toward a common goal

5

How many organ systems make up an organism?

11

6

How do tissue communicate with each other?

With the help of hormones

7

What are hormones released by?

Endocrine system

8

What are hormones?

Chemical messengers that travel through the blood and help organ systems communicate with other parts of the body

9

What is the digestive system responsible for? (2 things)

Digestion and absorption

10

What happens in the digestion stage?

Breaking down food into small pieces

11

What can be absorbed into the body? (3 things)

Sugar, amino acids and fatty acids

12

How long does it typically take for digestive tract to transit food?

24-72hrs

13

What is the function of the mouth?

Break down food and mix it with saliva

14

What is the function of the salivary glands?

produce saliva which contains a starch-digesting enzyme

15

What is the function of the pharynx?

Conduit for food and inspired air

16

What is the function of the esophagus?

Moves food to stomach

17

What is the function of the stomach? (2 things)

Temporary store food
Turns bolus of food into semi liquid chime

18

What is the function of the liver

Make bile which aids in digestion and absorption of fat

19

What is the function of the pancreas?

Releases bicarbonate to neutralize intestinal contents; produces enzymes that digest carbohydrate, protein and fat

20

What is the function of the gallbladder

Stores bile and releases it into the small intestine when needed

21

What is the function of the small intestine

Absorbs nutrients into blood or lymph; most digestion occurs here

22

What is the function of the large intestine

Absorbs water and some vitamins and minerals; home to intestinal bacteria; passes waste material

23

What is the function of the anus

opens to allow waste to leave the body

24

Where is the lumen found?

Small intestines

25

What is the lumen?

The inside space of the tubular intestines

26

What are the 11 structures of the digestive tract?

Mouth
Salivary glands
Pharynx
Esophagus
Stomach
Liver
Pancreas
Gallbladder
Small intestine
Large intestine
Anus

27

How do food move around in the digestive tract? (2 ways)

peristalsis
Segmentation

28

Define Enzymes

Crucial proteins which speed up the rate of reaction in the digestive tract

29

Define hydrolysis

Uses water to break down larger molecules into smaller ones

30

Define condensation

Bringing two smaller molecules together to form a larger one