Bio test 2

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hydrophobic

Last updated 3:00 AM on 10/16/26
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125 Terms

1
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what do all living molecules have

carbon

2
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what is essential for life

carbon

3
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____ based molecules are organic

carbon

4
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what is CH4

methain

5
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how many atoms can carbon bond to

4

6
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what is CH2O

a carbohydrate

7
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def digestion

breaking food down

8
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describe a carbon skeleton

a chain of carbon atoms that can differ in length and be straight, branched, or arranged in rings

9
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what makes a compound organic

has carbon and hydrogen

10
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how is a molecules structured

by ratio of atoms and arrangment of carbon skeleton

11
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what is a function group

parts of a molecules where most of the chemical reactions occur and they determin properties of molecules

12
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6 functional groups

hydroxyl group, carboxyl group, carbonyl group, amino group, methyl group, phosphate group

13
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what is hydroxyl group made of and other properties

-(-OH)

-organic compounds containing this is an alcohol

-basic


14
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what is carboxyl group made of and other properties

-(-COOH)

-carbon double bonded to oxygen and a hydroxyl (OH)

-Compounds in this group are organic acids

-becomes ionized (loses H plus ions)

15
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what is carbonyl group made of and other properties

-Carbon double bonded to Oxygen

-also called aldehydes

-polar so dissolves in H2O

16
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what is amino group made of and other properties

-(-NH2)
-nitrogen bonded to two hydrogen

-Attracted to H+ ions and picks them up (ionized)

-acts basic because of this but is not

17
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what is methyl group made of and other properties

-(-CH3)

-A carbon atom bonded to 3 hydrogen atoms

-non polar so non reactive

-affects the expression of genes


18
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what is phosphate group made of and other properties

-(-OPO3)

- A phosphorus atom bonded to 4 oxygen atoms


19
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what makes carbon special

its ability to bond with 4 atoms allows it to form a tetrahedral

20
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what is the effect of a carbon double bond

the skelton has “kinks” in it and makes it form into a different shape

21
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def isomer

compounds with the same formula but different arrangments

22
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def a hydrocarbon

chains composed of only carbon and hydrogen that provide fuel to the body

23
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compare hydrophilic and hydrophobic

hydrophilic molecules love water face the outisde of a protein, hydrophobic molecules repel water are nonpolar and clusters tg in the center of a protein

24
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what are the 4 most important organic molecules

carbohydrates, protein, lipids,nucleic acid but there are millions

25
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how many functional groups does an organic compound have and why

1 or more bc of carbons ability to bond with 4 atoms and its great stability

26
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def polymer

long molecule concisting of many building blocks strung together

27
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def monomer

building blocks strung together to make a polymer

28
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def polymerization

the process in which chains are formed to build a polymer

29
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monomers use ___ bonds to form a polymer

covalent

30
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31
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what ending indicates sugar

“ose”

32
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what ending indicates an enzyme

“ase”

33
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def dehydration synthesis

the process of taking a water molecule out when covalent bonds form

34
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def hydrolisis

the process of breaking down covalent bonds by adding water molecules

35
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36
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lactose plus water

glucose plus galactose

37
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glucose plus glucose

maltose plus H20

38
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monosaccharide plus monosaccharide

disaccharide plus H20

39
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amino acid plus amino acid

dipeptide plus H20

40
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polysaccaride plus 5 waters

6 monosaccharides

41
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sucrose plus water

fructose plus galactose

42
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polysaccharide plus 10 waters

11 monosaccharides

43
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fat plus 3 waters

glycerol plus 3 fatty acids

44
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fructose plus glucose

sucrose plus water

45
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maltose plus water

2 glucose

46
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polypeptide plus 21 waters

22 amino acids

47
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glycine plus alinine

dipeptide plus water

48
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3 fatty acids plus 1 glycerol

triglyceride

49
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dipeptide plus water

2 amino acids

50
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what are carbohydrates composed of

carbon hydrogen and oxygen in a 1:2:1 ratio

51
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function of carbohydrates

-cell wall for some plants and animals


52
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what makes starch

multiple glucoses in a chain

53
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equation for cellular respiration and what its called when reversed

O2+C6H12O6→H2O+CO2. photosynthesis

54
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what shape do glucose and fructose form

rings

55
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monosacharide plus monoscacharide

disaccharide

56
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what is the monomer and polymer of carbohydrates

monosaccharides and polysaccharides

57
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what is the monomer and polymer of lipids

trygliceides and phospholypids but has no polymers

58
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what is the monomer and polymer of proteins

amino acids and polypeptides

59
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what is the monomer and polymer of nucleic acids

nucleotide and polynucleotide

60
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what is an enzyme

a specialized protein made of polypeptides that speed up chemical reactions in cells and make and break bonds

61
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what is the differnce in macromolecules and polymers

polymer is always a macromolecules

62
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most basic monosaccharide

glucose C6H12O6

63
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what is needed for good health

fat vitamins mineral and complex carbohydrates

64
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def glycogen

where glucose is stored in animals and its made of many glucoses

65
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def starch

where glucose is stored in plants and its made of many glucoses

66
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def cellulose

makes up planty cells and made of many glucoses

67
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def chitin

makes up insect exoskeletons and a polysaccharide of glucose

68
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why does sugar dissolve in water so well

both polar

69
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how do plants store excess sugar

converting it into starch

70
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can starch disolve in water

no

71
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what do humans turn xtra sugar into

glycogen

72
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what do proteins contain

carbon hydrogen oxygen nitrogen

73
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how many amino acids r there

20

74
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what is the simpliest amino acid and why

glycine -the r is just an H

75
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what are the parts all amino acids have

-central carbon

-r group

-carboxl group

-amino. group

76
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what determines a proteins shape

bonds

77
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where are proteins in the body

blood stream or cell membrains

78
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def denaturation

process in which protein unravels therefor losing its shape and functionn due to excessive heat/ph/chemical change that is irriversable

79
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describe primery structure of a protein

a chain sequence of amino acids connected by peptide bonds

80
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describe secondary structure of a protein

twi polypeptide chains connected by hydrogen bonds in either an alpha helix or beta pleated sheet

81
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describe tertiary structure of a protein

polypeptide undergoes further three-dimensional folding and packing driven largely by interactions between the R groups of the amino acids

82
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describe quaternaryary structure of a protein

2 or 4 identicle transthyretin polypeptides form 1 protein

83
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7 types of proteins

-enzymes

-transport

-defensive

-signal proteins

-structural

-contractite

-storage

84
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do lipids mix well with water

no

85
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name the 3 lipids

-fats/oils/triglycerides

-steroids

-phospholipids

86
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what are triglycerides made of and the types

-1 glycerol and 3 fatty acids

-unsaturated fatty acids, contain a double bond with kind, r liquid at room temp, healthier,- 1H for every double bond

-saturated fatty acids, conatin only single bonds, solid at room temp, less healthy

87
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what make up phosopholipds and what they are used for

-1 glycerol, 2 fatty acid chains, 1 phosphate group

88
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what does a steriord look like

honeycomb

89
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what do fats do

store energy

90
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what does cholesteral do

in animals cells to make stereroids

91
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what do oils do

help plants store enery (unstaurated)

92
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what do fats do

help animals store energy (saturated)

93
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what is a monoglyercide made of

1 glycerol and 1 fatty acid

94
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monosaturated

1 unsatured bond (double bond)

95
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polyunsaturated

many unsatureated bonds

96
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what is LDL

low dencity lipoproteins-forms plaque in flood flow (bad)

97
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what is HDL

high dencity lipoproteins-brings cholesteral back to liver (good)

98
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describe HDL and LDL in trans fats

low HDL high LDL

99
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what is an anabolic stereroid and what can it cause

fake testosterone (hormones)-mood swing dpression liver damage cancer high bllod pressure high cholestural ect

100
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what do nucleuic acids contain

Carbon hydrogen oxygen nitrogen phsphurous