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Portage Learning BIOD 101 Essential
Biology I w/ Lab Module 3 Exam
Questions & Answers 2026-2027 |
100% Correct (Rationales)
Document Overview
This document provides 67 verified questions with 100% correct answers and detailed
rationales covering fundamental biochemistry. It is an invaluable resource for students
seeking to master the chemical processes of metabolism and cellular respiration. This
comprehensive study guide is ideal for exam preparation, course review, and reinforcing
understanding of essential biological concepts.
100% Accurate Questions and Answers 100% Guarantee Pass - Verified by Experts
Expert-Verified
Verified Answers · Detailed Rationales · 67 Questions · September 2026
Portage Learning BIOD 101 Essential Biology I w/ Lab Module 3 Exam Questions & Answers 2026-2027 | 100% Correct (Rationales) - Practice Questions Page 0
, Topics Covered
Section 1: Metabolic Fundamentals Q 1-9
Questions covering metabolic Fundamentals concepts.
Section 2: Glycolysis Q 10-34
Questions covering glycolysis concepts.
Section 3: Citric Acid Cycle Q 35-46
Questions covering citric Acid Cycle concepts.
Section 4: Electron Transport Chain & Oxidative Phosphorylation Q 47-65
Questions covering electron Transport Chain & Oxidative Phosphorylation concepts.
Section 5: Fermentation Pathways Q 66-67
Questions covering fermentation Pathways concepts.
Questions
QUESTION 1 OF 67
Chemical reactions of metabolic processes
Correct Answer: (1) redox reactions, (2) dehydration condensation reactions, (3) dehydration reactions
and (4) hydrolysis reactions.
Rationale: Metabolic processes in biological systems involve a variety of chemical transformations that are essential
for life. These include redox reactions, which involve the transfer of electrons, and dehydration condensation reactions
where water is removed to form larger molecules. Additionally, metabolic pathways utilize dehydration reactions for
synthesis and hydrolysis reactions to break down molecules, often using water. This aligns with (3) dehydration
reactions and (4) hydrolysis reactions., (2) dehydration condensation reactions and (1) redox reactions.
QUESTION 2 OF 67
Redox Reaction
Correct Answer: Involve transfer of electrons from a substrate which is oxidized, to another substance
which is reduced
Rationale: Involve transfer of electrons from a substrate which is oxidized, to another substance which is reduced,
fundamental to biological energy transfer, are characterized by the simultaneous oxidation and reduction processes.
Oxidation involves the loss of electrons from a molecule, making it the reducing agent, while reduction is the gain of
electrons by another molecule, making it the oxidizing agent. Therefore, a redox reaction inherently signifies the
transfer of electrons from a substance being oxidized to a substance being reduced.
Portage Learning BIOD 101 Essential Biology I w/ Lab Module 3 Exam Questions & Answers 2026-2027 | 100% Correct (Rationales) - Practice Questions Page 0
, QUESTION 3 OF 67
dehydration/condensation reaction
Correct Answer: a reaction in which two molecules are covalently bonded to each other through loss of a
water molecule and other small molecules. Requires energy
Rationale: A dehydration or condensation reaction involves the formation of a covalent bond between two molecules,
accompanied by the release of a water molecule. This process is anabolic, meaning it builds larger molecules from
smaller ones, and therefore requires an input of energy. This is a fundamental concept in biochemistry, explaining how
monomers link to form polymers like proteins, carbohydrates, and nucleic acids. This aligns with a reaction in which
two molecules are covalently bonded to each other through loss of a water molecule and other small molecules.
Requires energy.
QUESTION 4 OF 67
dehydration reaction
Correct Answer: A chemical reaction in which two molecules become covalently bonded to each other with
the removal of a water molecule.
Rationale: A chemical reaction in which two molecules become covalently bonded to each other with the removal of a
water molecule., also known as a condensation reaction, is a fundamental process in biological chemistry where
monomers join to form polymers. This synthesis involves the formation of a new covalent bond between the two
molecules, with a water molecule being released as a byproduct. This mechanism is for building larger biological
macromolecules like proteins, nucleic acids, and polysaccharides.
QUESTION 5 OF 67
hydrolysis reaction
Correct Answer: A biomacromolecule is degraded into 2 or more monomers with the gain of a water
molecule and release of energy
Rationale: A hydrolysis reaction involves breaking a chemical bond by adding a water molecule. In biological
systems, this process is used to degrade large biomacromolecules, such as polysaccharides or proteins, into their
smaller constituent monomers. This breakdown releases energy and requires the incorporation of a water molecule,
with one monomer receiving a hydrogen atom and the other a hydroxyl group. This aligns with A biomacromolecule is
degraded into 2 or more monomers with the gain of a water molecule and release of energy.
QUESTION 6 OF 67
Metabolism
Correct Answer: The sum of all synthetic and degradation biochemical reactions in the human body
Rationale: Metabolism encompasses all the chemical processes occurring within a living organism that are necessary
to maintain life. These processes are broadly categorized into anabolism, which involves building complex molecules
from simpler ones (synthetic reactions), and catabolism, which breaks down complex molecules into simpler ones
(degradation reactions). Therefore, metabolism is accurately defined as the sum of all synthetic and degradation
biochemical reactions in the human body.
Portage Learning BIOD 101 Essential Biology I w/ Lab Module 3 Exam Questions & Answers 2026-2027 | 100% Correct (Rationales) - Practice Questions Page 0
Portage Learning BIOD 101 Essential
Biology I w/ Lab Module 3 Exam
Questions & Answers 2026-2027 |
100% Correct (Rationales)
Document Overview
This document provides 67 verified questions with 100% correct answers and detailed
rationales covering fundamental biochemistry. It is an invaluable resource for students
seeking to master the chemical processes of metabolism and cellular respiration. This
comprehensive study guide is ideal for exam preparation, course review, and reinforcing
understanding of essential biological concepts.
100% Accurate Questions and Answers 100% Guarantee Pass - Verified by Experts
Expert-Verified
Verified Answers · Detailed Rationales · 67 Questions · September 2026
Portage Learning BIOD 101 Essential Biology I w/ Lab Module 3 Exam Questions & Answers 2026-2027 | 100% Correct (Rationales) - Practice Questions Page 0
, Topics Covered
Section 1: Metabolic Fundamentals Q 1-9
Questions covering metabolic Fundamentals concepts.
Section 2: Glycolysis Q 10-34
Questions covering glycolysis concepts.
Section 3: Citric Acid Cycle Q 35-46
Questions covering citric Acid Cycle concepts.
Section 4: Electron Transport Chain & Oxidative Phosphorylation Q 47-65
Questions covering electron Transport Chain & Oxidative Phosphorylation concepts.
Section 5: Fermentation Pathways Q 66-67
Questions covering fermentation Pathways concepts.
Questions
QUESTION 1 OF 67
Chemical reactions of metabolic processes
Correct Answer: (1) redox reactions, (2) dehydration condensation reactions, (3) dehydration reactions
and (4) hydrolysis reactions.
Rationale: Metabolic processes in biological systems involve a variety of chemical transformations that are essential
for life. These include redox reactions, which involve the transfer of electrons, and dehydration condensation reactions
where water is removed to form larger molecules. Additionally, metabolic pathways utilize dehydration reactions for
synthesis and hydrolysis reactions to break down molecules, often using water. This aligns with (3) dehydration
reactions and (4) hydrolysis reactions., (2) dehydration condensation reactions and (1) redox reactions.
QUESTION 2 OF 67
Redox Reaction
Correct Answer: Involve transfer of electrons from a substrate which is oxidized, to another substance
which is reduced
Rationale: Involve transfer of electrons from a substrate which is oxidized, to another substance which is reduced,
fundamental to biological energy transfer, are characterized by the simultaneous oxidation and reduction processes.
Oxidation involves the loss of electrons from a molecule, making it the reducing agent, while reduction is the gain of
electrons by another molecule, making it the oxidizing agent. Therefore, a redox reaction inherently signifies the
transfer of electrons from a substance being oxidized to a substance being reduced.
Portage Learning BIOD 101 Essential Biology I w/ Lab Module 3 Exam Questions & Answers 2026-2027 | 100% Correct (Rationales) - Practice Questions Page 0
, QUESTION 3 OF 67
dehydration/condensation reaction
Correct Answer: a reaction in which two molecules are covalently bonded to each other through loss of a
water molecule and other small molecules. Requires energy
Rationale: A dehydration or condensation reaction involves the formation of a covalent bond between two molecules,
accompanied by the release of a water molecule. This process is anabolic, meaning it builds larger molecules from
smaller ones, and therefore requires an input of energy. This is a fundamental concept in biochemistry, explaining how
monomers link to form polymers like proteins, carbohydrates, and nucleic acids. This aligns with a reaction in which
two molecules are covalently bonded to each other through loss of a water molecule and other small molecules.
Requires energy.
QUESTION 4 OF 67
dehydration reaction
Correct Answer: A chemical reaction in which two molecules become covalently bonded to each other with
the removal of a water molecule.
Rationale: A chemical reaction in which two molecules become covalently bonded to each other with the removal of a
water molecule., also known as a condensation reaction, is a fundamental process in biological chemistry where
monomers join to form polymers. This synthesis involves the formation of a new covalent bond between the two
molecules, with a water molecule being released as a byproduct. This mechanism is for building larger biological
macromolecules like proteins, nucleic acids, and polysaccharides.
QUESTION 5 OF 67
hydrolysis reaction
Correct Answer: A biomacromolecule is degraded into 2 or more monomers with the gain of a water
molecule and release of energy
Rationale: A hydrolysis reaction involves breaking a chemical bond by adding a water molecule. In biological
systems, this process is used to degrade large biomacromolecules, such as polysaccharides or proteins, into their
smaller constituent monomers. This breakdown releases energy and requires the incorporation of a water molecule,
with one monomer receiving a hydrogen atom and the other a hydroxyl group. This aligns with A biomacromolecule is
degraded into 2 or more monomers with the gain of a water molecule and release of energy.
QUESTION 6 OF 67
Metabolism
Correct Answer: The sum of all synthetic and degradation biochemical reactions in the human body
Rationale: Metabolism encompasses all the chemical processes occurring within a living organism that are necessary
to maintain life. These processes are broadly categorized into anabolism, which involves building complex molecules
from simpler ones (synthetic reactions), and catabolism, which breaks down complex molecules into simpler ones
(degradation reactions). Therefore, metabolism is accurately defined as the sum of all synthetic and degradation
biochemical reactions in the human body.
Portage Learning BIOD 101 Essential Biology I w/ Lab Module 3 Exam Questions & Answers 2026-2027 | 100% Correct (Rationales) - Practice Questions Page 0
