BIO 101 Module 3 Exam 2025 - Portage learning
1. What four chemical reactions are metabolic processes associated with?:
- Redox, dehydration condensation, dehydration, and hydrolysis reactions
2. Redox reaction (oxidation-reduction reactions):
A chemical reaction that involves the transfer of electrons in two steps.
1.) Oxidation step: an electron (or hydrogen atom) is lost from a substrate
2.) A reduction occurs, which means the lost electron is transferred to another
substrate
NOTE: reduction refers to the fact that the charge is reduced due to adding a
negative electron
3. Dehydration condensation reaction:
A chemical reaction that occurs when two or more monomers are joined together
and a water molecule is lost (building a polymer)
This requires an input of energy
Other small molecules other than water can also be lost! (hydrogen chloride,
methanol, acetic acid)
Think triglyceride formation
4. Dehydration reaction:
A chemical reaction used to join monomers in order to form polysaccharides
where a water molecule is lost
These are a subset of dehydration condensation reactions -- ONLY water is lost
Happens a lot in plants
5. Hydrolysis:
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, A chemical reaction that occurs when a biomacromolecule is degraded into two
or more monomers
As part of the reaction, a water molecule is gained
This process results in the release of energy
Often used to break down glycogen (and other polysacchrides) into glucose
6. Metabolism:
The sum of all the synthetic and degradation biochemical reactions in the human
body
7. Metabolic reactions can occur in the context of what two types of biochemical
reactions?:
Anabolic or catabolic
8. Anabolism:
Refers to the sum of all of the synthetic energy-requiring biochemical reactions
Energy may be required to build complex molecules like proteins
9. Catabolism:
Refers to the sum of all of the energy-releasing degradation biochemical
reactions
Energy is released from the breaking of chemical bonds that hold molecules
together.
10. Digestion and cellular respiration are what kind of reactions?:
Catabolic reactions
11. Redox reactions often occur in _____________.:
Redox reactions often occur in pathways.
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1. What four chemical reactions are metabolic processes associated with?:
- Redox, dehydration condensation, dehydration, and hydrolysis reactions
2. Redox reaction (oxidation-reduction reactions):
A chemical reaction that involves the transfer of electrons in two steps.
1.) Oxidation step: an electron (or hydrogen atom) is lost from a substrate
2.) A reduction occurs, which means the lost electron is transferred to another
substrate
NOTE: reduction refers to the fact that the charge is reduced due to adding a
negative electron
3. Dehydration condensation reaction:
A chemical reaction that occurs when two or more monomers are joined together
and a water molecule is lost (building a polymer)
This requires an input of energy
Other small molecules other than water can also be lost! (hydrogen chloride,
methanol, acetic acid)
Think triglyceride formation
4. Dehydration reaction:
A chemical reaction used to join monomers in order to form polysaccharides
where a water molecule is lost
These are a subset of dehydration condensation reactions -- ONLY water is lost
Happens a lot in plants
5. Hydrolysis:
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, A chemical reaction that occurs when a biomacromolecule is degraded into two
or more monomers
As part of the reaction, a water molecule is gained
This process results in the release of energy
Often used to break down glycogen (and other polysacchrides) into glucose
6. Metabolism:
The sum of all the synthetic and degradation biochemical reactions in the human
body
7. Metabolic reactions can occur in the context of what two types of biochemical
reactions?:
Anabolic or catabolic
8. Anabolism:
Refers to the sum of all of the synthetic energy-requiring biochemical reactions
Energy may be required to build complex molecules like proteins
9. Catabolism:
Refers to the sum of all of the energy-releasing degradation biochemical
reactions
Energy is released from the breaking of chemical bonds that hold molecules
together.
10. Digestion and cellular respiration are what kind of reactions?:
Catabolic reactions
11. Redox reactions often occur in _____________.:
Redox reactions often occur in pathways.
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