Portage Learning Chem 210 Biochem Final Exam Latest Update 2024-2025 Actual Exam Questions and 100% Verified Correct Answers Guaranteed A+
A ___ is a chemical formula that shows how the atoms of a molecule are bonded to one
another. - CORRECT ANSWER: Kekule' structure
A _____ is a chemical formula that does NOT show the C-H and C-C bonds. -
CORRECT ANSWER: condensed formula
A collection of two or more macromolecules uniting is called a ___. - CORRECT
ANSWER: supramolecular complex
A fibrous protein is an example of a protein ___. - CORRECT ANSWER: conformation
A group of molecules form a clathrate. What is a clathrate and why does it form? -
CORRECT ANSWER: A clathrate is a cage structure that forms around a substance
that has been placed in water as a result of the hydrophobic effect. Water orders itself around the hydrophobic portion of non-polar regions of a substance to maximize hydrogen bonds. The formation of this structure occurs due to the spontaneous drive of water to bind to itself through hydrogen bonds.
A particular lipid is liquid at room temperature, so it is called: - CORRECT ANSWER: oil
A particular lipid is solid at room temperature, so it is called: - CORRECT ANSWER: fat
About how many different elements are found in living organisms? - CORRECT
ANSWER: 30
According to the module, the study of carbon compounds is referred to as ___. -
CORRECT ANSWER: organic chemistry
An organic compound with this structure, C=C, contains a ___ functional group. -
CORRECT ANSWER: alkene
Any molecule or ion that is necessary for an enzyme's function is called: - CORRECT
ANSWER: cofactor
Biochemists study the communication within and around organisms. According to the module, what are 2 other aspects of living organisms that biochemists study? -
CORRECT ANSWER: 1. The relationship between structure and function of
biomolecules
- Chemical reactions of organisms (metabolism) 1 / 2
- Communication within and among organisms
Describe at least 3 properties of carbon the permit it to be the basis of life. - CORRECT
ANSWER: 1. Carbon can form strong covalent bonds with a variety of different
elements.
- Carbon can also form double and triple bonds with other carbons atoms as well as
- Carbon can form long chains through bonding with other carbons to create long
- Carbon can also form cyclic structures, also referred to as ring compounds.
with other elements, such as nitrogen and oxygen.
polymers.
Eukaryotes have molecules that provide a protective structure. This network, which is
found in all eukaryotes, is called the ___. - CORRECT ANSWER: cytoskeleton
Explain the common similarity between prokaryotic and eukaryotic cells in at least 2
sentences. - CORRECT ANSWER: The fundamental similarity between prokaryotic and
eukaryotic cells is the presence of a plasma membrane. This structure separates life from non-life. It acts as a barrier to the surrounding environment, but contains proteins that permit select molecules to enter and exit the cell.
FADH2 provides energy by donating electrons and hydrogens to the ___. - CORRECT
ANSWER: ETC
Fatty acids are catabolized by the ___ pathway. - CORRECT ANSWER: beta-oxidation
For an organic compound, which structure is the most efficient to draw? - CORRECT
ANSWER: line bond
For butane, there are ___ carbon and ___ hydrogen atoms. - CORRECT ANSWER: 4;
10
For pentane, there are ___ carbon and ___ hydrogen atoms. - CORRECT ANSWER: 5;
12
Glucose is catabolized by the ___ pathway. - CORRECT ANSWER: glycolysis
In a particular cell, molecule X binds near the active site on an enzyme causing it to
slow catalyzing reactions. Molecules X is called what? - CORRECT ANSWER:
uncompetitive inhibitor
In a particular cell, molecule X binds to an enzyme at the active site causing it to stop
catalyzing reactions. Molecules X is called what? - CORRECT ANSWER: competitive
inhibitor
In a particular cell, molecules X binds to an enzyme causing to stop catalyzing reactions. Molecule X is called what? - CORRECT ANSWER: inhibitor
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