End of test 2

Question 1

what color is the benidicts solution

Answer 1

blue

Question 2

how does the benididct solution work?

Answer 2

it is added to an unknown substance and heated

Question 3

what kind of test is the benidict test?

Answer 3

qualitative test

Question 4

what are the results for the benidict test?

Answer 4

monosaccharides are green, orange or brown (+)

disaccharides and polysaccharides are blue (-)

Question 5

what is the test for polysaccharides?

Answer 5

iodine is added to an unknown substance

Question 6

what is iodine?

Answer 6

brown solution

Question 7

what is the result of a polysaccharide test?

Answer 7

blue or black for (+) polysaccharides

brown (-) for monosaccharides and disaccharides

Question 8

what is the purpose of lipids?

Answer 8

gives stored energy, pads organs, insulation under skin

Question 9

what are the characteristics of lipids?

Answer 9

contains CHO
H:O ratio is greater than 2:1
never dissolve in H2O

Question 10

what are examples of lipids?

Answer 10

oils (liquid)

waxes (solid)

Question 11

where is fat found?

Answer 11

the cell membrane

Question 12

what is the dehydration synthesis for fat?

Answer 12

glycerol+ 3 fatty acids—– lipid+ 3 H2O

Question 13

what is the hydrolysis reaction for a fat?

Answer 13

lipid+ 3 H2O—- glycerol+ 3 fatty acids

Question 14

what is glycerol?

Answer 14

an alcohol

Question 15

how do you know something is an alcohol?

Answer 15

it ends with “ol”

Question 16

what is the formula for glycerol?

Answer 16

H
     |
H-C-OH
     |
H-C-OH
     |
H-C-OH
     |
    H

Question 17

what is the formula for a fatty acid?

Answer 17

RCOOH

Question 18

where does the water come from in the process?

Answer 18

the OH in fatty acid and H in glycerol

Question 19

what is a saturated fat?

Answer 19

-c-c-

its bad because it only has a single bond and has many places for things to hook on

Question 20

what is an example of a saturated fat?

Answer 20

butter

Question 21

what is an unsaturated fat?

Answer 21

not good or bad (eh)
c=c
has 2 bonds so its better

Question 22

what is a polyunsaturated fat?

Answer 22

good
c=c=c
things cant hook on

Question 23

what an example of a polyunsaturated fat?

Answer 23

olive oil

Question 24

what is cholesterol?

Answer 24

clogs arteries, not good

Question 25

what are steroids?

Answer 25

important for growth, hormones (healing)

Question 26

what are proteins used for?

Answer 26

maintenance and repair

Question 27

what do proteins contain?

Answer 27

CHON

Question 28

what is another name for a protein?

Answer 28

polypeptide chain

Question 29

what are peptide bonds?

Answer 29

bonds in protein

Question 30

what are examples of peptide bonds?

Answer 30

antibodies, hormones, enzymes

Question 31

what are enzymes?

Answer 31

speeds up chemical reactions

also called catalysts, end in ase

Question 32

what are amino acids known as?

Answer 32

building blocks if protein

Question 33

what is the hydrolysis reaction for protein?

Answer 33

protein+ h2o—– amino acid+ amino acid

Question 34

what is the dehydration synthesis for protein?

Answer 34

amino acid+ amino acid—– protein+ h2o

Question 35

what are the 3 parts of protein?

Answer 35

carboxl group (COOH, NH2 amino acid
amino acid skeleton
amino group