Solved Macromolecule Worksheet (Ch. 5) The following | Chegg.com - Free Printable

It looks like you've uploaded a worksheet titled "Macromolecule Worksheet (Ch. 5)" with 15 molecules labeled 1 through 15, and the instructions state that questions are based on these molecules. However, you haven't included the actual questions that go along with this image.

To help you properly, I need to know:

🔍 What specific questions are being asked?

Common types of questions for such a worksheet include:
- Identifying the type of molecule (e.g., monosaccharide, amino acid, fatty acid, nucleotide, etc.)
- Determining which molecules are building blocks of macromolecules
- Identifying functional groups
- Matching molecules to their roles in biological systems
- Identifying polymers vs. monomers
- Recognizing dehydration synthesis or hydrolysis products

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🧪 Let's Analyze the Molecules First

Here’s a quick identification of each molecule based on structure:

| # | Structure Description | Likely Identity |
|---|------------------------|-----------------|
| 1 | Linear chain with multiple OH groups | Glycerol (a triol) – part of triglycerides |
| 2 | Amino acid with SH group | Cysteine (amino acid) |
| 3 | CH₃–CH=CH₂ | Propene – not biologically significant; possibly a distractor |
| 4 | Linear sugar with multiple OH groups | Glucose (aldose sugar, open form) |
| 5 | Phosphate group attached to glycerol + long hydrocarbon chain | Phospholipid (phosphatidylcholine-like) |
| 6 | Ring sugar with OH groups | Fructose (ketose, ring form) |
| 7 | Amino acid with side chain –CH₂–S–CH₃ | Methionine (amino acid) |
| 8 | Simple amino acid: H₂N–CH–COOH with H side chain | Glycine |
| 9 | Long hydrocarbon chain with one COOH end | Fatty acid (palmitic acid-like) |
| 10 | Triose sugar (3 carbons) | Glyceraldehyde (a simple sugar) |
| 11 | Phosphate group (PO₄³⁻) | Inorganic phosphate |
| 12 | Ring sugar with HOCH₂– and OH groups | Galactose (ring form) |
| 13 | Nitrogen-containing ring | Adenine (nitrogenous base) |
| 14 | Chain of repeating ethylene oxide units | Polyethylene glycol (PEG) – synthetic polymer |
| 15 | Two ring sugars linked by O bond | Sucrose (glucose + fructose disaccharide) |

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✔ Common Questions & Answers (Example)

Since no specific questions were provided, here are likely questions and how to answer them, using the above analysis:

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#### ❓ Question: Which molecule is a monomer of a protein?
Answer: Molecules 2 (Cysteine), 7 (Methionine), and 8 (Glycine) are amino acids — they are monomers of proteins.

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#### ❓ Question: Which molecule is a monosaccharide?
Answer: Molecules 4 (Glucose), 6 (Fructose), 10 (Glyceraldehyde), 12 (Galactose) are monosaccharides.

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#### ❓ Question: Which molecule is a disaccharide?
Answer: Molecule 15 (Sucrose) is a disaccharide (glucose + fructose).

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#### ❓ Question: Which molecule is a lipid?
Answer: Molecules 5 (Phospholipid), 9 (Fatty acid) are lipids. Molecule 1 is glycerol, which is a component of lipids.

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#### ❓ Question: Which molecule is a nucleotide component?
Answer: Molecule 13 (Adenine) is a nitrogenous base, a component of nucleotides. Molecule 5 includes a phosphate and sugar, so it may represent a nucleotide derivative.

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#### ❓ Question: Which molecule contains a phosphodiester bond?
Answer: Molecule 5 has a phosphate group linking two parts — likely represents a phospholipid or nucleotide, but not a typical phosphodiester bond (which links nucleotides). No molecule shown clearly has a full phosphodiester bond between two sugars.

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#### ❓ Question: Which molecule can form a polymer via dehydration synthesis?
Answer: Molecules 1 (glycerol), 4 (glucose), 8 (glycine), 9 (fatty acid), 10 (glyceraldehyde), 12 (galactose), 13 (adenine) can all participate in polymerization.

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#### ❓ Question: Which molecule is a saturated fatty acid?
Answer: Molecule 9 is a long hydrocarbon chain with a carboxylic acid end and no double bonds → saturated fatty acid.

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#### ❓ Question: Which molecule is a steroid?
Answer: None of these are steroids. Steroids have a characteristic four-ring structure, which is not present here.

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🛠️ Next Steps

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