enzyme activity due to a change in pH

Nitrogen, oxygen carbon , hydrogen , sulfur

is made of one glucose and one fructose molecule

Shows the tertiary structure of a protein

Which below is not a characteristic of water

more dense as a solid than a liquid

The folding in the polypeptide shown would represent....

secondary structure of a protein

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Unit 1 Anatomy and Physiology

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Chapter in AP Bio and Chemistry

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Questions 40

Answers

1
Enzymes
are proteins
biological catalysts
all of the answers are true
are made of amino acids
2
What elements are found in a CFC?
Fluorine, Carbon , Chlorine
Carbon, hydrogen and fluorine
carbon, fluorine , hydrogen and chlorine
Chlorine, fluorine, calcium
3
Peptide bonds are ......
hydrophobic bonds
ionic bonds
covalent bonds
hydrogen bonds
4
The molecule shown is a/an
dipeptide
carbohydrate
nucleic acid
amino acid
5
The molecule shown is
a triglyceride
A polysaccharide
a phospholipid
a saturated fatty acid
6
Animal fats
are usually unsaturated fats
are solid at room temperature
contain double bonds in their fatty acid chains
all above are true
7
What environmental factors may denature a protein?
excess heat
all answers are true
too high a pH
too low a pH
8
Polymers are....
made of monomers
all answers are true
Very large molecules
natural and synthetic
9
The process in which a proteins 3 dimensional structure is destroyed is called
trans-configuration
Denaturation
Apoptosis
Desolation
10
Which below is NOT a function of lipids
conduct electricity
store long term energy
serve as biological catalysts
structural unit of plasma membrane
11
Approximately what percentage of all compounds on our planet are considered organic?
10%
50%
90%
75%
12
This molecule
is part of a carbohydrate
all answers are true
is part of a polysaccharide
is a glycerol molecule
13
enzymes ....
contain carbon hydrogen and phosphorus
Are proteins
All answers are true
form hydrogen bonds between amino acids
14
Which elements below would form a hydrogen bond
Hydrogen and nitrogen
Hydrogen and oxygen
all answers are true
Hydrogen and Sulfur
15
Which below would contain sulfur?
enzymes
carbohydrates
nucleic acids
triglycerides
16
Which below is not part of the nucleotide structure?
five carbon sugar
nitrogenous base
Carboxyl group
phosphate group
17
Two amino acids
Would be a disaccharide
is called a polypeptide
are attached by a peptide bond
would be considered secondary structure
18
The graph shows
enzyme activity due to a change in pH
enzyme activity due to a change in pressure
enzyme activity due to both ph and temperature
enzyme activity due to temperature change
19
The molecule shown
is a monomer of lipids
helps code for proteins
is found in enzymes
is an amino acid
20
proteins contain
phosphorus, carbon, hydrogen, oxygen, nitrogen
Nitrogen, oxygen carbon , hydrogen , sulfur
Sulfur, phosphorus , hydrogen, oxygen
sulfur, carbon , hydrogen , oxygen
21
Which below would not be found in Deoxyribonucleic acid?
Uracil
guanine
cytosine
Adenine
22
Sucrose
is a dipeptide
all answers are correct
is made of one glucose and one fructose molecule
is a lipid
23
What is the optimal temperature and pH for this enzyme to perform its function?
pH 8 and 40o F
10oC and pH 8
pH 8 and 50oC
pH 8 and 40oC
24
Which answer most likely does not effect an enzymes activity?
Density of substrate
Water concentration
Temperature
pH
25
Which one below is not organic in terms of chemistry?
Coal
Cotton
Sand
Alcohol
26
unsaturated hydrocarbons
can be alkynes
can be alkanes
all answers are correct
have more hydrogens than saturated hydrocarbons
27
The molecule shown..
shows the secondary structure of a protein
shows the quaternary structure of a protein
Shows the tertiary structure of a protein
is a polysaccharide
28
In the diagram A .....
is a substrate
is reuseable
has an active site
is an enzyme
29
In the diagram shown B ....
is reusable
all answers are correct
is a non-specific type of enzyme
is a polymerase type of enzyme
30
Which two macromolecules contain only hydrogen, carbon, and oxygen?
nucleic acids and proteins
carbohydrates and polypeptides
lipids and carbohydrates
Lipids and nucleic acids
31
Which below is NOT a function of lipids
integral part of cell membranes
Speed electrical signals
insulation
building block of muscles
32
Which functional group is found in proteins?
Carboxyl group
amine group
none are found in proteins
Carboxyl group and amine group
33
This molecule is....
glucose
ethane
propene
ethene
34
A disulfide bond would be found in
a lipid
a protein
a protein or an enzyme
an enzyme
35
Alkanes
are unsaturated
all contain hydrogen carbon and oxygen
have double or triple bonds
are saturated
36
water
has a relatively high specific heat
is less dense as a solid than a liquid
forms surface tension on water due to hydrogen bonds.
All answers are true
37
The molecule shown is
all answers are true
Triglyceride
unsaturated
oil
38
Which below is not a characteristic of water
hydrogen bonding
high specific heat
cohesion
more dense as a solid than a liquid
39
The folding in the polypeptide shown would represent....
primary structure of a protein
quaternary structure of a protein
secondary structure of a protein
tertiary structure of a protein
40
The monomer of polypeptides is the
monosaccharide
amino acid
Nucleotide
fatty acid

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