bio test 3

Question 1

what is the slight charge of oxygen

Answer 1

negative

Question 2

what is the slight charge of hydrogen

Answer 2

positive

Question 3

are the oxygen and hydrogen bonds strong or weak

Answer 3

they are weak

Question 4

what is hydrogen bonding

Answer 4

when a oxygen and and hydrogen charge bond together

Question 5

what is it called when the same water molecules hang on to each other

Answer 5

cohesion

Question 6

what is the one called where water is attracted to that glass

Answer 6

adhesion

Question 7

is the droplet from a sink and things adhesion or cohesion

Answer 7

cohesion

Question 7

the narrower the tube the more or less capillary action?

Answer 7

more

Question 8

what are the three types of mixtures

Answer 8

solution, colloid, and suspension

Question 9

what is it called when liquid flows through a narrow action

Answer 9

capillary action

Question 10

what is a solution

Answer 10

a homogenous mixture when 2 or more substances are dissolved together

Question 10

what is the salt called in solution, and what is water

Answer 10

solute, solvent

Question 11

what is a colloid

Answer 11

A mixture in which very small particles of one substance are distributed evenly throughout another substance

Question 12

can you actually see a colloid

Answer 12

yes

Question 13

what is a suspension

Answer 13

a suspension is a heterogenous mixture, it separates over time. A great example is oil and vinegar or sand and water.

Question 14

what does gravity do to suspension mixture

Answer 14

it separates them

Question 15

what ions make up the acid

Answer 15

hydrogen ion

Question 16

what ion makes up the base

Answer 16

hydroxide ion

Question 17

what if the ph is at 1 or 2 or 0

Answer 17

it would be very acidic

Question 17

whats another word for base

Answer 17

alkali

Question 18

what if the ph was near 14

Answer 18

very basic

Question 19

what ph is around 8 or 9

Answer 19

weak base

Question 20

what ph is around 7

Answer 20

neutral

Question 21

what is a neutralization reaction

Answer 21

when you take an acid and a strong base and it turns into neutral.

Question 22

what are buffers

Answer 22

a system in our bodys that helps us keep a good ph level

Question 23

why do we have buffers

Answer 23

to regulate the ph level

Question 24

what chemical has one carbon and four hydrogen atoms

Answer 24

methane

Question 25

which chemical has two carbons in a row

Answer 25

ethane

Question 26

what chemical would it be if there was a double bond

Answer 26

ethene

Question 27

triple bond

Answer 27

ethyne

Question 28

what is octane

Answer 28

8 carbons long

Question 29

what do a bunch of glucoses make

Answer 29

a starch

Question 30

in polymerization which is the monomer and which is the polymer

Answer 30

glucose is monomer whicle starch is polymer.

Question 31

what is the name for a large giant molecule

Answer 31

macromolecule

Question 32

what are the four organic groups

Answer 32

carbohydrates, lipids, proteins, and nucleic acids

Question 33

what are some examples of carbohydrates lipids proteins nucleic acids

Answer 33

starch, can sugar fats, cholesterol, tofu, enzymes DNA,RNA

Question 34

what is is called when you combine one glucose and another. what are you taking out

Answer 34

dehydration synthesis. taking out water

Question 35

what is it called when two glucoses are combined

Answer 35

maltose

Question 36

why dont lipids dissolve in water

Answer 36

because they are nonpolar

Question 37

what are the two main parts of a triglyceride

Answer 37

glycerol and fatty acids

Question 38

what fat is it when there are double bonds and which one is single bonds

Answer 38

unsaturated fat, saturated fat

Question 39

what is it called when there are multiple double bonds

Answer 39

polyunsaturated fats

Question 40

are polyunsaturated fats better or worse

Answer 40

the polyunsaturated are better

Question 41

how many fatty acids are in the phospholipid

Answer 41

there are two because one is replace with a phosphate group

Question 42

after you remove the water from glucose what does it become

Answer 42

moltose(dissacharide)

Question 43

what is the name of the process in our body where water breaks down a compound

Answer 43

hydrolisis

Question 44

what are the four types of nitrogenousu bases

Answer 44

AGCT( purines: adanine,guanine, pyremadies:cytosine thymine)

Question 45

what is dna made of

Answer 45

phosphate, sugars(deoxyribose) and nitrogenous base

Question 46

what did erwin chargoff discover

Answer 46

in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal.

Question 47

what did rosalind franklin discover

Answer 47

that the double helix is the shape of a dna molecule

Question 48

what is dna made of

Answer 48

nucleic acids,nucleotides,

Question 49

what makes up cell membranes

Answer 49

phospholipids

Question 50

what are on the two sides of amino acids

Answer 50

amine, and carboxyl group