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.
![**Net Charge on Amino Acids at pH 2**
*The net charge on the following amino acid is [x] at pH 2.*
**Structure:**
- **Amino Group (H2N):** Positioned on the left with a carbonyl group (C=O) attached to a central carbon.
- **Central Carbon Chain:** A three-carbon backbone connects the amino group to a carboxylic acid group.
- **Carboxyl Group (COOH):** Located on the right, featuring a hydroxyl (OH) group, indicative of typical amino acid structure.
- **Amide Group (NH2):** Attached to the central carbon, representing an additional functional group of the amino acid.
**Explanation:**
This image illustrates a structure of an amino acid that contains both amino (NH2) and carboxyl (COOH) groups. The central carbon is part of an amide bond that characterizes this molecule. Understanding the net charge involves analyzing the ionizable groups at a specific pH, noting that at pH 2, the amino groups are likely protonated, while carboxyl groups remain unionized, affecting the overall charge.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F56b89a6c-6ca3-4f25-9a44-1409c69966fc%2Fc8d8cc4d-36df-4c6a-a8b1-20bac5fece7d%2Fkkg1n4y_processed.png&w=3840&q=75)
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