Question 2
3 / 3 pts
Question 4
3 / 3 pts
Chem 210 – Module 5 exam
Question 1
3 / 3 pts
Glycerol contains how many alcohol functional groups?
1
2
3
4
None of the above
3
Which of the following are derived from or made from fatty acids?
Cholesterol
Carotenoids
Phosphoglycerid
es Both A and B
Both A and C
PHOSPHOGLYCERIDES
Question 3
3 / 3 pts
Triacylglycerols are made from:
A glycerol
backbone Three
fatty acids
Amide linkages between fatty acids
A glycerol backbone and three fatty
acids All of the above
A GLYCEROL BACKBONE AND THREE FATTY ACIDS
Question 6
3 / 3 pts
B
Question 5
3 / 3 pts
A is a carboxylic acid that is a structural component
of lipids. Amino acid
Carotenoid
Sphingolipi
d
cholestero
l
None of the above
NONE OF THE ABOVE
A particular lipid is a liquid at room temperature, so it is called a(n).
Oil
Fa
t
Question 2
3 / 3 pts
Question 4
3 / 3 pts
Chem 210 – Module 4 exam
Question 1
3 / 3 pts
Which of the following monosaccharides is a ketose?
Dihydroxyaceto
ne Galactose
Glucose
Glyceraldehyde
Idose
Dihydroxyacetone
When two carbohydrates are epimers:
One is a pyranose, the other a
furanose One is an aldose, the
other a ketose They differ in
length by one carbon
They differ only in the configuration about one
carbon atom They react differently with iodine
THEY DIFFER ONLY IN THE CONFIGURATION ABOUT ONE CARBON ATOM
Which pair is anomeric?
A) D-glucose and D-fructose
B) D-glucose and L-fructose
C) D-glucose and L-glucose
D)-D-glucose and -D-glucose
E) α-D-glucose and β-L-glucose
D) -D-glucose and -D-glucose
Question 5
3 / 3 pts
Question 6
3 / 3 pts
Lactose is made from linking galactose and glucose. When this happens, .
Gas is eliminated
An anomeric carbon is formed on
carbon-1 Water is released
An epimer is
formed An aldose
is formed
WATER IS RELEASED
Amylose and amylopectin are both polymers of:
A) α-D-glucose
B) β-D-glucose
C) Galactose
D)Idose
E) Maltose
A) α-D-glucose
Question 7
3 / 3 pts
Question 8
3/ 3 pts
Which statement about starch and glycogen is false?
A) Both have β-D-glucose monomers
B) Both starch and glycogen are energy storage polysaccharides
C) Both are homopolymers of glucose
D) Glycogen is more extensively branched than starch
E) Both have O-glycosidic linkages
A) Both have β-D-glucose monomers
Which monosaccharide is not a six-carbon monosaccharide?
Fructose
Ribose
Mannose
Galactos
e
Glucose
RIBOSE
The two monosaccharides shown below could best be described as:
Question 2
3 / 3 pts
Question 3
3 / 3 pts
Question 4
3 / 3 pts
Chem 210 – Module 3 exam
Question 1
3 / 3 pts
True or False: The amino acids serine and threonine both contain sulfur
atoms.
FALSE
True or False: The following secondary structure shown below is an example
of a beta- turn.
FALSE
True or False. The side chain of phenylalanine is bonded to the
backbone nitrogen atom.
FALSE
True or False: The name of the molecule that binds to an enzyme is called the
holoenzyme.
FALSE
Question 5
3 / 3 pts
Question 6
3 / 3 pts
Question 7
3 / 3 pts
Question 8
3 / 3 pts
True or False: An inhibitor that binds at the active site is a coenzyme.
FALSE
Which amino acids differ by only one atom?
Ser and
Thr Leu
and Ile Ala
and Ser
Asp and
Asn Ser
and Cys
SER AND CYS
The formation of a peptide bond between two amino acids is an example of
a(n)
reaction.
Cleavage
Condensatio
n Group
transfer
Isomerizatio
n
Double-bond
breaking
CONDENSATION
Question 2
3 / 3 pts
Question 3
0 / 3 pts
Question 4
3 / 3 pts
Chem 210 – Module 1 exam
Question 1
3 / 3 pts
True or False: According to the Module, a compound with a molecular mass of
3,000 g/mol is considered a macromolecule.
FALSE
True or False: Biomolecules can have only two functional groups.
FALSE
True or False: The following functional group is an amide.
FALSE
True or False: In a eukaryotic cell, the organelles called peroxisomes serve
the purpose of digesting macromolecules.
FALSE
Question 5
Question 2
3 / 3 pts
Question 3
3 / 3 pts
Question 4
3 / 3 pts
Question 5
3 / 3 pts
Chem 210 – FINAL exam
Question 1
3 / 3 pts
True or False: Nitrogen is called the superglue of the chemical world.
FALSE
True or False: Large elements, such as strontium, are common in
biomolecules.
FALSE
True or False: The time it takes for a compound to flow through a metabolic
pathway is called the payoff phase.
FALSE
True or False: Proteins, carbohydrates, and fats all get broken down into
acetyl-CoA.
TRUE
True or False: A fat is a lipid molecule that is a solid at room
temperature. TRUE
Question 6
3 / 3 pts
In DNA, guanine always pairs with .
Thymin
e
Guanin
e Uracil
Question 7
3 / 3 pts
Question 8
3 / 3 pts
Cytosine
Both A and
B
CYTOSINE
Water is considered a polar solvent due to attractive forces known as
hydrogen bonds. A hydrogen bond is .
A bond that is stronger than a covalent bond
An attractive force between molecules where partially positive
hydrogen atoms are attracted to partially negative atoms of F, O, or N.
The polar O–H bond in water
An ionic bond between H and another
atom A covalent bond between H and
O
AN ATTRACTIVE FORCE BETWEEN MOLECULES WHERE PARTIALLY POSITIVE
HYDROGEN ATOMS ARE ATTRACTED TO PARTIALLY NEGATIVE F, O, OR N
Which of the following is the structure of ADP?
Question 2
3 / 3 pts
Chem 210 – Module 2 exam
Question 1
3 / 3 pts
Scientific Calculator
The pH of a solution of 8.9 x 10-12 M
NaOH is: A. 8.9
B. 8.9 x 10-12
C. 4.8
D. 11
E. 2.9
A
B
C
D
E
[Kw=[H+][OH-] = 1.0 x 10-14; [H+][8.9 x 10-12] = 1.0 x 10-14
;[H+]=890; pH=-log[890]=2.9]
Water is a unique molecule. Which of the following contributes to water’s
unique place
Question 4
3 / 3 pts
in the chemical world?
The geometry of the
molecule The polarity of
the O-H bonds
The ability of water molecules to
hydrogen bond The bond angle of water
All of the answers are correct
ALL OF THE ANSWERS ARE CORRECT
What factor contributes to the bent shape of a water
molecule? The dipole arrows in a water molecule
The unshared electron pairs on the oxygen atom
The electronegativity difference between hydrogen
and oxygen The unequal electron sharing between
hydrogen and oxygen None of the answers are correct
THE UNSHARED ELECTRON PAIRS ON THE OXYGEN ATOM
Which diagrams correctly represent a hydrogen bond?
Question 2
3 / 3 pts
Question 3
3 / 3 pts
Question 6
3 / 3 pts
Chem 210 – Module 7 exam
Question 1
3 / 3 pts
True or False: The ΔG value for a particular reaction is -78kJ/mol. This value
indicates the reaction is NOT spontaneous.
FALSE
True or false: A biochemical metabolic pathway is a single reaction that
converts starting material into products.
FALSE
True or false: Three ATP molecules are used in the energy-investing stage of
glycolysis. FALSE
Question 4
3 / 3 pts
True or False: The citric acid cycle occurs in the absence of
oxygen. FALSE
Question 5
0 / 3 pts
True or false: The β-oxidation pathway degrades both evennumbered and odd- numbered fatty acids.
TRUE
Question 7
3 / 3 pts
Question 8
3 / 3 pts
In converting glucose to pyruvate, how many ATP or NADH are produced (or
required) in the 1,3-bisphosphoglycerate to 3-phosphoglycerate step in
glycolysis?
2 ATP produced
1 ATP required
1 NADH produced
2 NADH and 1 ATP
produced None of the
above
2 ATP PRODUCED
In converting glucose to pyruvate, how many ATP or NADH are produced (or
required) in the phosphoenolpyruvate to pyruvate step in glycolysis?
1 ATP required
1ATP produced
2ATP produced
2 ATP required
None of the
above
2 ATP PRODUCED
What is the primary reactant of glycolysis?
Glucose
Glucose-6-
phosphate
Fructose
Fructose-6-phosphate
Hexokinase
Question 2
3 / 3 pts
Question 3
3 / 3 pts
Question 6
3 / 3 pts
Chem 210 – Module 7 exam
Question 1
3 / 3 pts
True or False: The ΔG value for a particular reaction is -78kJ/mol. This value
indicates the reaction is NOT spontaneous.
FALSE
True or false: A biochemical metabolic pathway is a single reaction that
converts starting material into products.
FALSE
True or false: Three ATP molecules are used in the energy-investing stage of
glycolysis. FALSE
Question 4
3 / 3 pts
True or False: The citric acid cycle occurs in the absence of
oxygen. FALSE
Question 5
0 / 3 pts
True or false: The β-oxidation pathway degrades both evennumbered and odd- numbered fatty acids.
TRUE
Question 7
3 / 3 pts
Question 8
3 / 3 pts
In converting glucose to pyruvate, how many ATP or NADH are produced (or
required) in the 1,3-bisphosphoglycerate to 3-phosphoglycerate step in
glycolysis?
2 ATP produced
1 ATP required
1 NADH produced
2 NADH and 1 ATP
produced None of the
above
2 ATP PRODUCED
In converting glucose to pyruvate, how many ATP or NADH are produced (or
required) in the phosphoenolpyruvate to pyruvate step in glycolysis?
1 ATP required
1ATP produced
2ATP produced
2 ATP required
None of the
above
2 ATP PRODUCED
What is the primary reactant of glycolysis?
Glucose
Glucose-6-
phosphate
Fructose
Fructose-6-phosphate
Hexokinase
Question 2
3 / 3 pts
Question 3
3 / 3 pts
Question 4
3 / 3 pts
Question 5
3 / 3 pts
Question 6
3 / 3 pts
Chem 210 – Module 8 exam
Question 1
3 / 3 pts
True or False: The majority of reactions of the urea cycle occur in the cytosol.
TRUE
True or False: NADH yields 1.5 ATP molecules after donating electrons and
hydrogen atoms to the electron transfer chain (ETC).
FALSE
True or False: GTP is invested in the urea cycle.
FALSE
True or False: There are six complexes associated with the ETC.
FALSE
True or False: In the production of ATP via ATP synthase, the H+ ions
move from the mitochondrial matrix to the intermembrane space.
FALSE
The urea cycle involves reactions (only those in the cyclic portion
of the process).
1
2