Educational worksheet explaining the relationship between monomers and polymers in biomolecules, featuring labeled diagrams and matching exercises.

Let's solve the Monomers and Polymers Worksheet – Option 1 step by step, with explanations for each part.

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✔ PART 1: Understanding Monomers and Polymers

This section introduces the concept using visuals:
- A monomer is a small unit.
- A polymer is a large molecule made of many monomers linked together.
- Example: Letters → Words (monomers → polymers), or Words → Sentences.

The image shows:
- Nucleic Acid: Monomer = Nucleotide
- Carbohydrate: Monomer = Monosaccharide (e.g., glucose)
- Lipid: Monomer = Glycerol + Fatty acids
- Protein: Monomer = Amino acid

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✔ PART 2: Matching Questions

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#### Question 1: Match the MONOMER to the macromolecule

| Monomer | Macromolecule |
|---------------------------|---------------|
| Fatty acids and glycerol | B. Lipid |
| Monosaccharide | D. Carbohydrate |
| Nucleotide | C. Nucleic acid |
| Amino acid | A. Protein |

✔ Explanation:
- Fatty acids + glycerol → form triglycerides, which are lipids.
- Monosaccharides (like glucose) → link to form carbohydrates (e.g., starch).
- Nucleotides → join to make nucleic acids (DNA/RNA).
- Amino acids → chain together to form proteins.

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#### Question 2: Match the POLYMER to the macromolecule

| Polymer | Macromolecule |
|------------------|---------------|
| DNA | C. Nucleic acid |
| Enzyme | A. Protein |
| Triglyceride | B. Lipid |
| Polysaccharide | D. Carbohydrate |

✔ Explanation:
- DNA is a type of nucleic acid.
- Enzymes are proteins that catalyze reactions.
- Triglyceride is a lipid (fat).
- Polysaccharide (like glycogen or starch) is a carbohydrate.

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#### Question 3: Match the MONOMER to the POLYMER

| Monomer | Polymer |
|------------------------|----------------|
| Fatty acids and glycerol | B. Triglyceride |
| Glucose | C. Starch |
| Nucleotide | D. DNA |
| Amino acid | A. Enzyme |

✔ Explanation:
- Fatty acids + glycerol → Triglyceride (a lipid).
- Glucose units → form starch (a polysaccharide).
- Nucleotides → form DNA (a nucleic acid).
- Amino acids → form proteins, including enzymes.

> Note: While enzymes are proteins, not all proteins are enzymes. But since "enzyme" is listed as a polymer here, it's acceptable in this context as an example of a protein.

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#### Question 4: Explain how monomers are related to polymers.

✔ Answer:
Monomers are the building blocks (small subunits) that link together through chemical bonds to form larger molecules called polymers. This process is called dehydration synthesis (or condensation). For example:
- Amino acids (monomers) link to form proteins (polymers).
- Glucose (monomer) links to form starch (polymer).
- Nucleotides (monomers) form DNA (polymer).

When monomers bond, they lose water molecules and create long chains — these chains are polymers. The reverse process, breaking down polymers into monomers, is called hydrolysis.

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✔ Final Answers:

#### 1. Monomer → Macromolecule
- Fatty acids and glycerol → B. Lipid
- Monosaccharide → D. Carbohydrate
- Nucleotide → C. Nucleic acid
- Amino acid → A. Protein

#### 2. Polymer → Macromolecule
- DNA → C. Nucleic acid
- Enzyme → A. Protein
- Triglyceride → B. Lipid
- Polysaccharide → D. Carbohydrate

#### 3. Monomer → Polymer
- Fatty acids and glycerol → B. Triglyceride
- Glucose → C. Starch
- Nucleotide → D. DNA
- Amino acid → A. Enzyme

#### 4. Explanation
Monomers are small molecules that bond together through covalent bonds to form larger molecules called polymers. This process is known as dehydration synthesis. For example, amino acids (monomers) join to form proteins (polymers). Polymers can be broken down back into monomers through hydrolysis.

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