BIOL 1P91 FINAL EXAM QUESTIONS WITH
VERIFIED SOLUTIONS NEW MODIFIED
A pH of 2 is ________ than a pH of 6 --CORRECT ANSWER--
10,000 times more acidic
-more acidic the lower you go
Which of the following macromolecules is the most hydrophobic?
A) Lipids
B) Proteins
C) Carbohydrates
D) Nucleic Acids
E) All of the above
F) 2 of the above --CORRECT ANSWER--Lipids are the most
hydrophobic
- water hating
What is the following reaction?
R1-OH + H-R2 --> R1-R2 + H20
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,A) Hydrolysis
B) Condensation
C) Dehydration
D) Decomposition
E) All of the above
F) 2 of the above --CORRECT ANSWER--Two of the above:
Hydrolysis and Condensation
- they both lose a water to combine molecules
What are the 4 molecules in all living organisms --CORRECT
ANSWER--Hydrogen
Oxygen
Nitrogen
Carbon
Which macromolecule contains a sulphydryl functional group?
A) Fatty acids
B) Carbohydrates
C) Steroids
D) Amino acid --CORRECT ANSWER--Amino Acids
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,- this is a -SH group that is specifically found in cysteine
What kind of bonds connect sugar monomers --CORRECT
ANSWER--Glycosidic bonds
How do plants store energy? --CORRECT ANSWER--Starch
- starch is for plants
- glycogen is for animals
What are the 3 general components that make up an atom? --
CORRECT ANSWER--Protons
Neutrons
Electrons
The sum of the atomic number and the number of neutrons is: --
CORRECT ANSWER--A (the atomic number)
Mass Number
Which of the following is/ are a polar bond?
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, A) O-H bond in water *
B) C-O in CO2
C) N-N in N2
D) all of the above
E) two of the above --CORRECT ANSWER--A) O-H bond in water
A substance dissolvable in oil is said to be: --CORRECT ANSWER--
Hydrophobic
- since oil is hydrophobic, it will dissolve hydrophobic substances
- like dissolves like
Amphipathic molecules have two different properties:
When dissolved in water, they form: --CORRECT ANSWER--
Amphipathic molecules have hydrophobic and hydrophilic properties
and in water they form micelles.
Which protein structure involves the formation of a 3D shape due to
R-group interactions? --CORRECT ANSWER--Tertiary
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VERIFIED SOLUTIONS NEW MODIFIED
A pH of 2 is ________ than a pH of 6 --CORRECT ANSWER--
10,000 times more acidic
-more acidic the lower you go
Which of the following macromolecules is the most hydrophobic?
A) Lipids
B) Proteins
C) Carbohydrates
D) Nucleic Acids
E) All of the above
F) 2 of the above --CORRECT ANSWER--Lipids are the most
hydrophobic
- water hating
What is the following reaction?
R1-OH + H-R2 --> R1-R2 + H20
Page 1 of 36
,A) Hydrolysis
B) Condensation
C) Dehydration
D) Decomposition
E) All of the above
F) 2 of the above --CORRECT ANSWER--Two of the above:
Hydrolysis and Condensation
- they both lose a water to combine molecules
What are the 4 molecules in all living organisms --CORRECT
ANSWER--Hydrogen
Oxygen
Nitrogen
Carbon
Which macromolecule contains a sulphydryl functional group?
A) Fatty acids
B) Carbohydrates
C) Steroids
D) Amino acid --CORRECT ANSWER--Amino Acids
Page 2 of 36
,- this is a -SH group that is specifically found in cysteine
What kind of bonds connect sugar monomers --CORRECT
ANSWER--Glycosidic bonds
How do plants store energy? --CORRECT ANSWER--Starch
- starch is for plants
- glycogen is for animals
What are the 3 general components that make up an atom? --
CORRECT ANSWER--Protons
Neutrons
Electrons
The sum of the atomic number and the number of neutrons is: --
CORRECT ANSWER--A (the atomic number)
Mass Number
Which of the following is/ are a polar bond?
Page 3 of 36
, A) O-H bond in water *
B) C-O in CO2
C) N-N in N2
D) all of the above
E) two of the above --CORRECT ANSWER--A) O-H bond in water
A substance dissolvable in oil is said to be: --CORRECT ANSWER--
Hydrophobic
- since oil is hydrophobic, it will dissolve hydrophobic substances
- like dissolves like
Amphipathic molecules have two different properties:
When dissolved in water, they form: --CORRECT ANSWER--
Amphipathic molecules have hydrophobic and hydrophilic properties
and in water they form micelles.
Which protein structure involves the formation of a 3D shape due to
R-group interactions? --CORRECT ANSWER--Tertiary
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