PORTAGE LEARNING UPDATED 2026/2027 || BIOCHEMISTRY
FUNDAMENTALS REVIEW || ENZYMES, METABOLISM & MOLECULAR
BIOLOGY || VERIFIED QUESTIONS & ACCURATE ANSWERS || HIGH-YIELD
STUDY GUIDE || COMPLETE TEST BANK || GRADED A+
Module 1 – 8 400 questions
Module 1 exam
True or False: According to the Module, a compound with a molecular mass of
1,000 g/mol is considered a macromolecule. - CORRECT ANSWER -False
True or False: Biomolecules can have only two functional groups. -
CORRECT ANSWER -False
True or False: The following functional group is an alcohol. - CORRECT
ANSWER -False
True or False: In a eukaryotic cell, the organelles called peroxisomes serve the
purpose of digesting macromolecules. - CORRECT ANSWER -False
True or False: Carbon dioxide has a linear molecular shape AND has a bond
angle of 109.5 degrees. - CORRECT ANSWER -False
Of the following, ____________ is not a property of carbon. - CORRECT
ANSWER -possessing five valence electrons
Which of the following is an element not typically found in living organisms? -
CORRECT ANSWER -He
_____________ is a functional group found in carbohydrates. - CORRECT
ANSWER -Alcohols
,The following functional group is an example of _________. - CORRECT
ANSWER -Ketone
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
An organic compound with this structure, C=C, contains a ________ functional
group. - CORRECT ANSWER -Alkene
Scientists refer to ________ as the "super glue" of the chemistry. - CORRECT
ANSWER -C
What molecule is most important for energy storage in cells? - CORRECT
ANSWER -ATP
What would be the approximate size of a human cell? - CORRECT ANSWER
-12 μm
For propane, there ________ carbon and ________hydrogen atoms. -
CORRECT ANSWER -3, 8
For an organic compound, which structure is the most efficient to draw? -
CORRECT ANSWER -Line bond
When writing an organic functional group, scientists often write an "R" as part
of the structure. What does the R indicate? - CORRECT ANSWER -Rest of
the molecule
,According to the module, the study of Non-carbon compounds is referred ____.
- CORRECT ANSWER -Inorganic chemistry
Which of the following is not a functional group discussed in this module? -
CORRECT ANSWER -All of these were discussed.
Which number would be closest to the approximate number of ribosomes in an
E. coli cell? - CORRECT ANSWER -25,000
Which of the following would most likely have a cell wall? - CORRECT
ANSWER -Marigold flower cells
Eukaryotes have molecules that provide protective structural. This network is
called the _____________. - CORRECT ANSWER -Cytoskeleton
The molecule linked to the medical condition of gout is __________. -
CORRECT ANSWER -Uric acid
About how many different elements are found in living organisms? -
CORRECT ANSWER -30
(Short response) Explain the common similarity in all prokaryotic and
eukaryotic cells. Give a brief explanation of the similarity. - CORRECT
ANSWER -Each cell type has a plasma membrane that separates life from non-
life. The plasma membrane acts as a barrier to most molecules but does have
proteins that permit select molecules to cross via proteins (transporters).
(Short response) Would scientists be more likely to find an element such as O in
a biomolecule, or W? Explain which she would more likely find in biological
molecule and give specific physical/chemical properties. - CORRECT
ANSWER -She would more likely find O. Smaller elements are preferred.
Smaller elements with smaller atomic shells are favored because they can form
, stable covalent bonds, allowing cells to form, hair to grow, and skin to protect
against abrasion.
(Short response) What element is the basis for life? Describe at least two
properties of this element that permit it to serve the basis for life. - CORRECT
ANSWER -1. Carbon can form strong covalent bonds with a variety of
different elements. 2. Carbon can form double and triple bonds with other
carbon atoms and other elements (N and o).
(Short response) How does organic chemistry differ from inorganic chemistry? -
CORRECT ANSWER -Organic chemistry is the study of the carbon-based
compounds. Inorganic chemistry is the study of all other elements, but carbon.
(Short response) Biochemists study the communication within and among
organisms. According to the module, what are two other aspects of living
organisms that biochemists study? - CORRECT ANSWER -Biochemists also
study the structure and function of biomolecules and the chemical reactions of
organisms.
Module 2
Explain the equilibrium constant expression. - CORRECT ANSWER -The
ratio of the equilibrium concentrations or partial pressures of products to
reactants, each term raised to a power equal to the coefficient of that substance
in the balanced chemical equation for the reaction.
It is used to describe the extent to which the reaction proceeds in the forward
direction to a state a equilibrium.
The pH of a solution of 0.0010 M NaOH is:
A) 1
B) 11
C) 8