Enzymes and digestive system test 2

Question 1

what are enzymes

Answer 1

helper protein molecules for chemical reactions

Question 2

what is synthesis

Answer 2

building molecules

Question 3

what is digestion

Answer 3

breaking down molecules

Question 4

what do all chemical reactions require

Answer 4

an enzyme

Question 5

what are catalysts

Answer 5

enzymes that increase the rate of reaction

Question 6

what biomolecules are enzymes

Answer 6

proteins

Question 7

each enzyme is a specific what

Answer 7

helper to specific reaction

Question 8

enzymes require a certain what for the job

Answer 8

the right shape

Question 9

what breaks down sucrose

Answer 9

sucrase

Question 10

what breaks down proteins

Answer 10

proteases, trypsin, chymotrypsin, pepsin

Question 11

what breaks down fats and lipids

Answer 11

bile and lipase

Question 12

what enzyme builds dna

Answer 12

dna polymerase

Question 13

how do reactions affect enzymes

Answer 13

thye are not changed

Question 14

what amount of enzyme is needed for a reaction

Answer 14

very little

Question 15

what is the active site

Answer 15

where enzyme and substrait connect

Question 16

why is the shape of the protein important

Answer 16

allows enzyme and protein to click

Question 17

what is a substrait

Answer 17

molecule that enzymes work on

Question 18

what is the product

Answer 18

what the enzymes help produce from the reaction

Question 19

what affects protein structure

Answer 19

the order of amino acids

Question 20

what happens if order of amino acids is wrong

Answer 20

it has the wrong shape and cant do its job

Question 21

what an optimum temp

Answer 21

temp with greatest number of collisions between enzyme and substrait

Question 22

what is the optimum temp for human enzymes

Answer 22

37 degrees

Question 23

what happens when the temperature reaches boiling for enzymes

Answer 23

protein denatures, unfolds and loses shape

Question 24

what happens when the temperature gets too low for enzymes

Answer 24

molecules move slower and there are fewer collisions

Question 25

what do changes in pH change

Answer 25

protein shape

Question 26

what is the pH of most human enzymes

Answer 26

6 to 8

Question 27

what is the most important thing for enzymes

Answer 27

shape

Question 28

what do animals make energy with

Answer 28

food and oxygen

Question 29

what is ATP used for

Answer 29

synthesis

Question 30

what are the steps of getting and using food

Answer 30

ingest digest absorb eliminate

Question 31

what is ingest

Answer 31

taking in food

Question 32

what is digest mechanical and chemical digestions diffrences

Answer 32

mechanical is physical digestions and chemical is breaking food down with chemicals

Question 33

what is eliminate

Answer 33

undigested materials flushed out of body

Question 34

whats an example of mechanical digestion in the mouth

Answer 34

teeth

Question 35

what an example of chemical digestion in the mouth

Answer 35

amylase from saliva breaking down carbs

Question 36

what do the salvitary glands produce

Answer 36

amylase

Question 37

what is mucus

Answer 37

protects soft lining of digestive system and lubricates food

Question 38

what are buffers

Answer 38

neutralize acid

Question 39

what is epiglottis

Answer 39

flap of cartilage that closes the trachea

Question 40

what is perstalilis

Answer 40

muscle contractions to move along food

Question 41

what is the overall function of mouth

Answer 41

break up food, digest starch, kill germs, moisten food

Question 42

how does the stomach disinfect food

Answer 42

hydrochloric acid kills bacteria

Question 43

how does stomach allow food storage

Answer 43

it stretchs

Question 44

how does stomach digest proteins

Answer 44

with pepsin

Question 45

where does pepsin come from

Answer 45

the stomach

Question 46

what is the overall function of stomach

Answer 46

kills germs, break up food, digest proteins, store food

Question 47

how does the small intestine digest carbohydrates

Answer 47

amylase

Question 48

how does the small intestine digest proteins

Answer 48

trypsin and chimotrypsin

Question 49

how does the smallintestine diegst lipids and fats

Answer 49

bile and lipase

Question 50

what is absorption

Answer 50

nutrients move into body cells by diffusion

Question 51

what is active transport

Answer 51

movment of molecules across cell membranes with the help of an enzyme

Question 52

how does absorbtion go through small inestine

Answer 52

villi and micro villi stretch it out

Question 53

whats the overall fucntion of the small intestine

Answer 53

break down food, absorb nutrients

Question 54

what protein-digesting enzymes does the pancreas produce

Answer 54

trypsin and chimo trypsin

Question 55

what starch digesting enzymes does the pancreas produce

Answer 55

amylase

Question 56

what fat and lipid digesting enzymes does the pancreas produce

Answer 56

lipase

Question 57

what is the overall function of the pancreas

Answer 57

produce enzyme to digest all foods

Question 58

what does the liver produce

Answer 58

bile

Question 59

what does the gall bladder store

Answer 59

bile

Question 60

what is the overall fucntion of the liver

Answer 60

produce bile stroed in gall bladder, break up fats

Question 61

what doe sthe large intestine do

Answer 61

re absorb WATER

Question 62

what happens if not enough water is reabsorbed by the large intestine

Answer 62

diarrhea

Question 63

what happens if too much water re absorbed

Answer 63

constipation

Question 64

how are digestive juices re absorbed

Answer 64

by diffusion

Question 65

what lives in the large intestinnee

Answer 65

helpful bacteria

Question 66

what does E Coli do in large intestine

Answer 66

digest cellulose, produce vitamins, generate gases

Question 67

what digests cellulose

Answer 67

e coli

Question 68

overall function of large inestines

Answer 68

absorb water

Question 69

what is an appendix

Answer 69

a vestigal organ

Question 70

what is a rectum

Answer 70

last section of th elarge intestine

Question 71

what is the rectum's function

Answer 71

eliminate feces

Question 72

what is eliminated by rectum

Answer 72

undigested materials, roughage, fibers, masses of bacteria

Question 73

why is the rectum helpful

Answer 73

keeps everything moving and cleans out intestine

Question 74

can enzymes be un denatured from change in pH

Answer 74

yes

Question 75

can enzymes be un denatured from temp

Answer 75

no

Question 76

which biomolecule has a double bond on oxygen

Answer 76

protein

Question 77

what is the chemical formula for a carburetor

Answer 77

CHO

Question 78

what is the chemical formula for a lipid

Answer 78

CHO

Question 79

what is chemical formula for proteins

Answer 79

CHON

Question 80

what is the chemical formula for nucleic acids

Answer 80

CHONP