Biochem Final Exam 2025-2026
A ___ is a chemical formula that shows how the atoms of a molecule are bonded to one
another. - ANSWER-Kekule' structure
A _____ is a chemical formula that does NOT show the C-H and C-C bonds. -
ANSWER-condensed formula
A collection of two or more macromolecules uniting is called a ___. - ANSWER-
supramolecular complex
An organic compound with this structure, C=C, contains a ___ functional group. -
ANSWER-alkene
What element has been called the superglue of the chemical world? - ANSWER-carbon
(C)
What molecule is the most important for energy storage in cells? - ANSWER-ATP
What would be the approximate size of a human cell? - ANSWER-12 μm
For pentane, there are ___ carbon and ___ hydrogen atoms. - ANSWER-5; 12
For butane, there are ___ carbon and ___ hydrogen atoms. - ANSWER-4; 10
For an organic compound, which structure is the most efficient to draw? - ANSWER-line
bond
When writing an organic functional group, scientists often wrist an "R" as part of the
structure. What does the R indicate? - ANSWER-rest of the molecule
According to the module, the study of carbon compounds is referred to as ___. -
ANSWER-organic chemistry
The ___ functional group was NOT discuss in this module.
alcohol
amine
aromatic
thiol
all of these were discussed - ANSWER-all of these were discussed
T/F: According to the module, a compound with a molecular mass of 1,000 g/mol is
considered a macromolecule. - ANSWER-false
, macromolecule >5,000 g/mol
T/F: Biomolecules can have two or more different functional groups. - ANSWER-true
T/F: The following group is an amine.
C2H5NH2 - ANSWER-true
T/F: In a eukaryotic cell, the organelles called peroxisomes serve the purpose of
digesting macromolecules. - ANSWER-false
peroxisomes degrade dangerous/hazardous molecules, lysosomes degrade
macromolecules
T/F: In a eukaryotic cell, the organelles called lysosomes serve the purpose of digesting
macromolecules. - ANSWER-true
T/F: Carbon dioxide has a linear molecular shape AND has a bond angle of 109.5
degrees. - ANSWER-false
linear shape = 180 degrees
Of the following, ___ is not a property of carbon.
Forming ionic bonds
Forming cyclic structures
Forming multiple bonds
Forming bonds with oxygen
Bonding in long chains - ANSWER-Forming ionic bonds
Which of the following is an element not typically found in living organisms?
Br
Ca
H
S
Na - ANSWER-Br
What are the functional groups found in carbohydrates? - ANSWER-carbonyls (C=O)
alcohol/hydroxyls (-OH)
ketones
aldehydes
What is a ketone? - ANSWER-carbonyl group bonded to 2 carbons
A ___ is a chemical formula that shows how the atoms of a molecule are bonded to one
another. - ANSWER-Kekule' structure
A _____ is a chemical formula that does NOT show the C-H and C-C bonds. -
ANSWER-condensed formula
A collection of two or more macromolecules uniting is called a ___. - ANSWER-
supramolecular complex
An organic compound with this structure, C=C, contains a ___ functional group. -
ANSWER-alkene
What element has been called the superglue of the chemical world? - ANSWER-carbon
(C)
What molecule is the most important for energy storage in cells? - ANSWER-ATP
What would be the approximate size of a human cell? - ANSWER-12 μm
For pentane, there are ___ carbon and ___ hydrogen atoms. - ANSWER-5; 12
For butane, there are ___ carbon and ___ hydrogen atoms. - ANSWER-4; 10
For an organic compound, which structure is the most efficient to draw? - ANSWER-line
bond
When writing an organic functional group, scientists often wrist an "R" as part of the
structure. What does the R indicate? - ANSWER-rest of the molecule
According to the module, the study of carbon compounds is referred to as ___. -
ANSWER-organic chemistry
The ___ functional group was NOT discuss in this module.
alcohol
amine
aromatic
thiol
all of these were discussed - ANSWER-all of these were discussed
T/F: According to the module, a compound with a molecular mass of 1,000 g/mol is
considered a macromolecule. - ANSWER-false
, macromolecule >5,000 g/mol
T/F: Biomolecules can have two or more different functional groups. - ANSWER-true
T/F: The following group is an amine.
C2H5NH2 - ANSWER-true
T/F: In a eukaryotic cell, the organelles called peroxisomes serve the purpose of
digesting macromolecules. - ANSWER-false
peroxisomes degrade dangerous/hazardous molecules, lysosomes degrade
macromolecules
T/F: In a eukaryotic cell, the organelles called lysosomes serve the purpose of digesting
macromolecules. - ANSWER-true
T/F: Carbon dioxide has a linear molecular shape AND has a bond angle of 109.5
degrees. - ANSWER-false
linear shape = 180 degrees
Of the following, ___ is not a property of carbon.
Forming ionic bonds
Forming cyclic structures
Forming multiple bonds
Forming bonds with oxygen
Bonding in long chains - ANSWER-Forming ionic bonds
Which of the following is an element not typically found in living organisms?
Br
Ca
H
S
Na - ANSWER-Br
What are the functional groups found in carbohydrates? - ANSWER-carbonyls (C=O)
alcohol/hydroxyls (-OH)
ketones
aldehydes
What is a ketone? - ANSWER-carbonyl group bonded to 2 carbons
