Biochemistry Flashcards

1
Q

A polymer made up of many amino acids joined together

A

A polypeptide

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2
Q

A fatty acidd which has no double bonds between carbon atoms is called

A

Saturated fatty acid

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3
Q

Soap is one type of _______, which are substances that help break large fat droplets into small fat droplets to help them mix with water.

A

Emulsifier

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4
Q

A nucleic acid which is single stranded

A

RNA

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5
Q

This process breaks bonds between subunits in organic polymers

A

hydrolysis

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6
Q

the carbohydrate that makes up the cell walls of plants

A

cellulose

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7
Q

Another name for fat

A

Lipid

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8
Q

The storage form of carbohydrate in plants

A

starch

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9
Q

Acidity is created by an excess of _______ ions in a solution.

A

hydrogen

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10
Q

heavy _____ can alter the three dimensional shape of a protein.

A

metals (Ag, Hg and Pb)

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11
Q

A nucleotide is made up of a _____, a pentose, and a nitrogenous base.

A

phosphate

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12
Q

A ph above 7.0 is considered_____.

A

Basic

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13
Q

This element, common in living organisms, can form up to four bonds with other substances.

A

Carbon

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14
Q

Forms when two glucose molecules are joined together

A

Maltose (disaccharide)

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15
Q

______ are lipids which contain four rings in their chemical structure

A

Steroids

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16
Q

A nucleic acid with a double helix shape

A

DNA

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17
Q

______ bonds are strong

A

Covalent

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18
Q

A six carbon sugar is called

A

a hexose

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19
Q

the subunit which makes up nucleic acids

A

nucleotide ( made up of a sugar molecule, either RNA or DNA, attached to a phosphate group and a nitrogen-containing base)

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20
Q

a five carbon sugar is called

A

a pentose

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21
Q

Level of protein structure that can be either an alpha helix or beta pleated sheet

A

secondary structure

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22
Q

A ph below 7 is considered

A

acidic

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23
Q

a carb made up of many subunits

A

a polysaccharide

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24
Q

A fatty acid which contains at least one double bond between carbon atoms is called ______.

A

Unsaturated fatty acid

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25
This level of protein structure is the sequence of amino acids that make up the protein
primary structure
26
how many different kinds of amino acids exist?
twenty
27
Carbs help provide us with
energy
28
a special kind of nucleotide which is used to transmit energy within living organisms
ATP
29
Compounds which are primarily made up of carbon, hydrogen, and oxygen are called ______.
Organic compounds
30
a ph of 7 is considered
neutral
31
a protein's three dimensional shape is extremely important in order for it to ___ properly.
function
32
______ are a type of lipid that make up a significant portion of the cell membrane.
phospholipids
33
water is a good solvent bcs its molecules are______, having a slight positive and negative charge
polar
34
a disaccharide formed when a glucose and fructose come together
sucrose
35
a carb made up of only one subunit
monosaccharide
36
process which creates bonds between subunits in organic polymers
dehydration synthesis
37
excessive ______ can cause a protein to lose its three dimensional shape
heat
38
the term for a protein losing its three dimensional shape is called
denaturation
39
the subunit that makes up polypeptides
amino acids
40
the 2:1 ratio of hydrogen and oxygen is a characteristic of a
carbohydrate molecule
41
a neutral fat that contained glycerol and only ONE fatty acid chain would be called a ______glyceride.
mono
42
a substance which helps hold the ph of a solution relatively constant is called a
Buffer
43
A carb made up of two subunits
disaccharide
44
the measure of acidity or alkalinity of a substance
pH
45
hydrogen bonds are known to be _____.
weak
46
level of protein structure when two or more proteins join each other to form a larger protein structure
Quaternary
47
a molecule made up of two amino acids joined together
dipeptide
48
this level of protein structure occurs when the protein begins to fold upon itself creating 3D shape
tertiary
49
the storage form of carb storage in animals
glycogen
50
NCC is the sequence of three atoms which is the characteristic of what?
An amino acid
51
what is a polymer?
large molecules (macromolecules) that are multiple of simpler chemical units. Making big molecules from smaller ones
52
what is a peptide?
strings of amino acids ( building blocks of proteins) linked by peptide bonds
53
What is an emulsifier?
a substance that stabilizes an emulsion, used to stabilize processed foods. Breaks down fat
54
The type of carbohydrate used in our cells
Glucose
55
What is an emulsion?
An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable) owing to liquid-liquid phase separation.
56
Proteins are made of _______
Amino acids
57
What is polymerization
The process to create polymers
58
Proteins are made out how many amino acids?
50-75
59
Most enzymes are in what level of protein structure ?
Tertiary
60
Types of denaturation
Heat, ph, heavy metals
61
What is a nucleotide ?
Nitrogen in a ring, Pentose, phosphate Building base of nucleic acid
62
C12H22O11 is ________.
Maltose