week 7

Question 1

steroids are an example of

Answer 1

a lipid

Question 2

proteins are polymers constructed from

Answer 2

amino acid monomers

Question 3

the volume of space around the nucleus where an electron is most likely to be located is called the

Answer 3

shell

Question 4

the term hydrophilic means

Answer 4

water loving

Question 5

polarity refers to

Answer 5

uneven sharing of electrons among the atoms of a compound

Question 6

a long chain of simple sugars would be called

Answer 6

polysaccharide

Question 7

a substance with a pH of 3 would be

Answer 7

an acid

Question 8

the linear sequence of amino acids in a polypeptide chain is referred to as its ___ structure

Answer 8

primary

Question 9

atoms that have the same number of protons but different numbers of neutrons

Answer 9

isotope

Question 10

a ___ is an atom where the number of electrons and protons are unequal

Answer 10

ion

Question 11

a protein’s function is dependent on its

Answer 11

shape

Question 12

nucleic acids are polymers of ___ monomers

Answer 12

nucleotide

Question 13

the atomic number of an atom is

Answer 13

the number of protons in the nucleus

Question 14

the innermost election shell of an atom can hold __ electrons

Answer 14

2

Question 15

a glycerol with three fatty acids attached is referred to as a

Answer 15

fat

Question 16

sodium has an atomic number of 11. how many electron shells would be present within this atom if it were neutral

Answer 16

3

Question 17

which of the following is NOT a nitrogenous base found is a nucleotide

Answer 17

quatine

Question 18

a pH of ___ is considered acidic

Answer 18

6 and below

Question 19

which of the following is and example of polysaccharide

Answer 19

starch

Question 20

which of the following bonds would be the weakest

Answer 20

hydrogen

Question 21

___ are directly responsible for the formation of the secondary formation of a protein

Answer 21

hydrogen bonds

Question 22

an anion is an atom that as

Answer 22

gain and electron

Question 23

cellulose is an example of a

Answer 23

fiber

Question 24

___ are compounds that can either absorb or release H+ or OH- to stabilize pH

Answer 24

buffers

Question 25

DNA nucleotides include

Answer 25

thymine, guanine, adenine, cytosine

Question 26

which of the following is NOT made of nucleic acid

Answer 26

amino acids

Question 27

proteins are made up of ___ strung together by ___ bond

Answer 27

amnio acids; peptide

Question 28

which of the following nitrogenous bases is found only in RNA

Answer 28

uracil

Question 29

you would expect a peptide bond to link

Answer 29

two amino acids

Question 30

when an electron is transferred from one atom to the next, and the two atoms are then electrically attracted to one another, the type of bond that is formed is called

Answer 30

ionic

Question 31

which of the following is hydrophillic

Answer 31

cellulose

Question 32

___ is a negatively charged subatomic particle

Answer 32

electron

Question 33

carbohydrates had a set ratio of carbon, hydrogen, and oxygen molecules. that ratio is

Answer 33

1:2:1

Question 34

destruction of a proteins shape is called

Answer 34

denaturation

Question 35

during ionization of water

Answer 35

water disassociate into H+ and OH-

Question 36

which of the following is true with regard to a DNA molecule

Answer 36

A=T and C=G

Question 37

animals store carbohydrates as

Answer 37

glycogen

Question 38

this reaction involves the addition of a water molecule to break a chemical bong

Answer 38

hydrolysis

Question 39

how does RNA differ from DNA

Answer 39

RNA contains uracil; DNA contains thymine