Digestive System Quiz

Question 1

whats excretion

Answer 1

a material leaving the body that was once part of the living tissue of the organism

Question 2

whats egestion

Answer 2

a material leaving the body that is in the form of undigested food that has never entered the tissues of the body

Question 3

what are the 2 main processes of digestion

Answer 3

mechanical and chemical

Question 4

where does the digestion of carbohydrates start

Answer 4

in the mouth

Question 5

whats the pH range of the mouth

Answer 5

6-7.4

Question 6

what are the 3 pairs of salivary glands

Answer 6

parotid gland, sublingual and submaxillary

Question 7

what’s the makeup of saliva

Answer 7

99% water, 1% amylase

Question 8

whats amylase

Answer 8

enzyme that breaks down amylose through enzymatic hydrolysis

Question 9

whats the uvula

Answer 9

tissue hanging at the back of the mouth that tips when you swallow to help block the entrance to the nasal passage

Question 10

whats the purpose of teeth

Answer 10

to mechanically grind and break down food and allow for more surface area for better breaking down by enzymes

Question 11

whats the roof of the mouth called

Answer 11

palate

Question 12

what are the 2 types of palates and where are they located

Answer 12

hard palate in the front and soft palate in the back

Question 13

whats the epiglottis

Answer 13

flap of tissue which closes the trachea during swallowing so that the food doesn’t enter your respiratory track

Question 14

what happens if the epiglottis malfunctions

Answer 14

you have a cough reflex to help unblock the trachea, but if this doesn’t work you will begin choking

Question 15

what does the esophagus do

Answer 15

carry food to the stomach

Question 16

what does the trachea do

Answer 16

carries air to your lungs

Question 17

what’s the other name for your trachea

Answer 17

windpipe

Question 18

what’s the purpose of saliva

Answer 18

it softens and moistens food as well as helps to form bolus

Question 19

what is bolus

Answer 19

chewed up food that is ready to be swallowed

Question 20

what is the summary of food processing

Answer 20

ingestion, digestion, absorption, egestion

Question 21

whats the esophagus

Answer 21

a muscular collapsable tube that carries food down to the stomach

Question 22

how does the esophagus transport food to the stomach

Answer 22

by secreting mucus without enzymes and using peristalsis

Question 23

where is the stomach located

Answer 23

below the diaphragm toward the left side of the abdomen

Question 24

what are the 3 layers of smooth involuntary within the stomach called

Answer 24

longitudinal, circular, and oblique

Question 25

whats the stomach

Answer 25

sac made up of many different muscles that can expand to hold a greater quantity of undigested food

Question 26

whats peristalsis in the esophagus

Answer 26

muscular contractions that move bolus down to the stomach

Question 27

whats peristalsis in the stomach

Answer 27

muscular contractions that help to mix the gastric juices with food

Question 28

whats rugae

Answer 28

many wrinkles or ridges in the wall of the stomach

Question 29

what's the purpose of rugae

Answer 29

to increase the surface area, ability to stretch and the gastric pits within the internal part of the stomach

Question 30

whats the active form of pepsinogen

Answer 30

pepsin

Question 31

whats the inactive form of pepsin

Answer 31

pepsinogen

Question 32

what does hydrochloric acid do

Answer 32

converts pepsinogen to pepsin within the substance

Question 33

whats HCL

Answer 33

acid within the stomach

Question 34

whats pepsin

Answer 34

active enzyme that breaks down proteins in food

Question 35

what does the stomach digest

Answer 35

proteins and lipids

Question 36

where does protein digestion begin

Answer 36

in the stomach

Question 37

whats chyme

Answer 37

food that has left the pyloric valve

Question 38

whats rennin

Answer 38

enzyme that helps to digests proteins found within milk

Question 39

whats gastric lipase do

Answer 39

breaks triglycerides into 3 fatty acids and glycerol

Question 40

whats a fat called

Answer 40

triglyceride