Lab 5

Question 1

The wave like contractions to move contents of the digestive system

Answer 1

peristalsis

Question 2

when the muscle layers constrict, what does it form

Answer 2

sphincters

Question 4

where are the sphincters located? there are 5 locations

Answer 4

top of esophagus
between stomacah and esophagus
between stomach and small intestine
between small and large intestine
the anus

Question 5

it is a large muscle and covered on the upper surface and sides by taste buds

Answer 5

tongue

Question 6

how can we determine animal’s diet?

Answer 6

type and shape of teeth

Question 7

used to cut and clip food

Answer 7

incisors

Question 8

teeth that have flat head

Answer 8

incisors

Question 9

teeth that are pointed

Answer 9

canines

Question 10

used to tear and rip tough food

Answer 10

canines

Question 11

broad teeth to crush and tear food

Answer 11

premolars

Question 12

why might some herbivores have lost, reduced, or modified canines

Answer 12

no longer necessary for diet

Question 13

what is milk teeth

Answer 13

the first set of teeth of a baby

Question 14

which digestive enzyme is found in saliva

Answer 14

amylase

Question 15

give functions of saliva

Answer 15

moisten foods to make it easier to swallow
cleanses mouth to remove food particles and bacterias

Question 16

how does the food move through the esophagus

Answer 16

through peristalsis

Question 17

correct order of flow of digestion

Answer 17

mouth pharynx esophagus stomach small intestine large intestine rectum anus

Question 18

your mnemonic for the flow of digestion

Answer 18

“My Perfect Elephant Sings Songs Like Real Artists.”

Question 20

this acts to keep food and stomach acid from travelling back into the esophagus

Answer 20

sphincter

Question 21

what is the interior walls of the stomach that have large folds

Answer 21

rugae

Question 22

what is a rugae

Answer 22

fold in the stomach lining

Question 23

what does the lining of stomach contains?

Answer 23

gastric glands

Question 24

what does gastric glands produces

Answer 24

mucus, hydrochloric acid, pepsinogen

Question 25

what protects the stomach lining from the acidic environment

Answer 25

mucus

Question 26

what kills bacteria that may be present in food

Answer 26

HCl acid

Question 27

what digestive substance does the liver produce

Answer 27

bile

Question 28

where is bile stored

Answer 28

gallbladder

Question 29

what is the function of bile

Answer 29

emulsifies fat

Question 30

what does the pancreas produce

Answer 30

sodium bicarbonate

Question 32

what are the three digestive enzymes that pancreas produce

Answer 32

lipase, trypsin, amylase

Question 33

lipase digests _____

Answer 33

fats

Question 34

trypsin digests ________

Answer 34

protein

Question 35

amylase digests ______

Answer 35

carbohydrates

Question 36

how does the pH of small intestine compare to the pH of the stomach

Answer 36

less acidic

Question 37

each circular fold has many finger-like projections

Answer 37

villi

Question 38

what passes from the small intestine into the large intestine

Answer 38

undigested materials

Question 39

this contains no circular folds or villi

Answer 39

large intestine

Question 40

give functions of large intestine

Answer 40

absorb water moves solid waste out of the body

Question 41

what are the undigested material from the digestive tract called

Answer 41

feces

Question 42

where are feces stored

Answer 42

rectum

Question 43

why do you need to incubate your tubes at room temperature before heating them

Answer 43

allowing the amylase to start breaking down starch into simpler sugars

Question 44

what happens if the temperature increases past optimum

Answer 44

enzyme denature

Question 45

a ring of muscle fibers that regulate the movement of food from one location to another in the digestive tract

Answer 45

sphincters