Podcast
Questions and Answers
In a chemical reaction, if a molecule loses electrons, which process is it undergoing and what is the consequence?
In a chemical reaction, if a molecule loses electrons, which process is it undergoing and what is the consequence?
- Reduction; the molecule loses potential energy.
- Reduction; the molecule gains potential energy.
- Oxidation; the molecule gains potential energy.
- Oxidation; the molecule loses potential energy. (correct)
Which of the following reactions would be classified as exergonic?
Which of the following reactions would be classified as exergonic?
- The synthesis of a DNA strand from nucleotide building blocks.
- The formation of glycogen from glucose monomers.
- The production of starch from many simple sugars.
- The digestion of a protein into individual amino acids. (correct)
If a scientist observes a reaction where two smaller molecules combine to form a larger molecule and water is released, which type of reaction is most likely occurring?
If a scientist observes a reaction where two smaller molecules combine to form a larger molecule and water is released, which type of reaction is most likely occurring?
- Redox
- Hydrolysis
- Oxidation
- Dehydration synthesis (correct)
What is the relationship between reduction and oxidation reactions in a biological system?
What is the relationship between reduction and oxidation reactions in a biological system?
Which type of reaction requires energy input to proceed?
Which type of reaction requires energy input to proceed?
Flashcards
Synthesis (Dehydration Synthesis)
Synthesis (Dehydration Synthesis)
Formation of a larger molecule from smaller ones by removing water.
Endergonic Reaction
Endergonic Reaction
A reaction that requires energy input to occur.
Hydrolysis
Hydrolysis
Breakdown of large molecules by adding water.
Exergonic Reaction
Exergonic Reaction
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Reduction
Reduction
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Study Notes
- Chemical reactions include synthesis, hydrolysis, and redox reactions.
Synthesis (Dehydration Synthesis)
- A larger molecule is formed from smaller ones.
- Water (H2O) is removed during the process.
- Endergonic, meaning it requires energy.
Hydrolysis
- Large molecules are broken down.
- Requires the addition of water (H2O).
- Exergonic, meaning it releases energy.
Redox (Reduction-Oxidation)
- Reduction: The gain of electrons.
- Oxidation: The loss of electrons.
- Involves a simultaneous transfer of electrons.
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Description
Explore synthesis (dehydration synthesis), hydrolysis, and redox reactions. Synthesis builds larger molecules by removing water and requires energy. Hydrolysis breaks down large molecules using water and releases energy. Redox involves the transfer of electrons through reduction and oxidation.
