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Learn: Monomers, Polymers, Condensation and Hydrolysis
A-level Biology 7402 specification
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Welcome!Today we'll dive into monomers, polymers, condensation, and hydrolysis. This topic is all about understanding how biological molecules are formed and broken down. Let's explore these key concepts together!
What are Monomers and Polymers?Monomers are small, basic molecules that can join together to form larger structures. Polymers are long chains made by joining many monomers together. These processes are key in forming biological molecules like carbohydrates, proteins, and nucleic acids.
Quick check: What is a polymer?
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Condensation ReactionsA condensation reaction occurs when two monomers join together to form a polymer. This type of reaction releases a molecule of water as a by-product. It’s essential for building complex biological molecules such as carbohydrates and proteins.
Hydrolysis ReactionsHydrolysis reactions involve breaking down polymers into monomers. Unlike condensation, water is added to the reaction to split the bonds holding monomers together. This process is crucial for digestion and energy release in organisms.
Which of the following statements are true? (Select all that apply)
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Examples of Biological MoleculesCarbohydrates, proteins, and nucleic acids are examples of polymers made from monomers. For instance, glucose (a monomer) forms starch (a polymer) through condensation. In digestion, hydrolysis breaks these polymers back into monomers for absorption.
Monomers join together through {{blank0}} reactions and are broken apart by {{blank1}} reactions.
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Why Are These Reactions Important?Condensation and hydrolysis reactions are vital in biology. They allow organisms to build complex molecules for growth and repair (condensation) and break them down for energy and nutrients (hydrolysis).
Match the items on the left with their correct pairs on the right
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Review Time!Great work! You've learned about monomers, polymers, condensation, and hydrolysis. Now let's test your understanding with a few questions.
Which reaction breaks polymers into monomers?
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Which of the following are examples of monomers? (Select all that apply)
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Water is {{blank0}} during a condensation reaction and {{blank1}} during hydrolysis.
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Match the items on the left with their correct pairs on the right
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Well Done!You've completed the lesson on monomers, polymers, condensation, and hydrolysis. Great work taking the time to learn these key concepts. Keep practising and you'll master them in no time!

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