4. Classify each of the following amino acids as polar or nonpolar and as hydrophilic or hydrophobic. Polar or nonpolar: Hydrophilic or Hydrophobic: CH- that CH₂ H CH₂ CH-CH₂ H₂N- CH- CH₂ a. ↑ H₂N NH₂ COOH H H₂C H 5. In the space provided, write out the products of the hydrolysis (+H₂O) reaction for the dipeptide shown below: H₂ -COOH CH₂
Neutral Amino Acids
Amino acids which do not have any charge on them are neutral amino acids.
Globular Protein
The globular proteins refer to the shape of protein specifically spherical in nature apart from spherical form fibrous, disordered and membrane-bound proteins exist. These globular proteins are miscible in water and form a colloidal solution rather than other types which might not exhibit solubility. Many classes of the fold are found in globular proteins, which render them a sphere shape. Globular fold containing proteins usually are referred to by the term globin.
Dimer
Dimers are basic organic compounds, which are derivates of oligomers. It is formed by the combination of two monomers which could potentially be strong or weak and in most cases covalent or intermolecular in nature. Identical monomers are called homodimer, the non-identical dimers are called heterodimer. The method by which dimers are formed is known as “dimerization”.
Dipeptide
A dipeptide is considered a mixture of two distinct amino acids. Since the amino acids are distinct, based on their composition, two dipeptide's isomers can be produced. Various dipeptides are biologically essential and are therefore crucial to industry.
 (Image description: A chemical structure of an amino acid with an amine group (NH2), a carboxyl group (COOH), and a side chain with an amide group.)
Polar or nonpolar: ________________
Hydrophilic or Hydrophobic: ________________
**b.**
 (Image description: A chemical structure of an amino acid with an amine group (NH2), a carboxyl group (COOH), and a side chain consisting of a nonpolar hydrocarbon chain.)
Polar or nonpolar: ________________
Hydrophilic or Hydrophobic: ________________
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#### 5. In the space provided, write out the products of the hydrolysis (+H2O) reaction for the dipeptide shown below:
 (Image description: A chemical structure of a dipeptide with the sequence NH2-CH-CO-NH-CH-COOH, attached to side chains R1 and R2.)
**Reaction Products:**
```markdown
1. Amino Acid 1 (Specify structure or name)
2. Amino Acid 2 (Specify structure or name)
```
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**Note:** For accurate completion, students should use knowledge of amino acid properties (such as side chains' polarity and hydrophilicity/hydrophobicity) and be familiar with the hydrolysis reaction process which involves breaking the peptide bond in the presence of water (H2O).
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For further learning resources and detailed explanations, visit our [Amino Acids and Protein Chemistry](URL_to_Educational_Resource) section.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7eb16600-8f07-40f7-854e-83024f28a747%2F9ec45a27-93be-457a-a947-d44a26fbee04%2Fwi2q8xr_processed.png&w=3840&q=75)
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