Mostly proteins which is present in protoplasm show which type of configuration?

Options

A. Primary
B. Secondary
C. Tertiary
D. Quaternary

Answer

### Step-by-Step Solution:

1. **Understanding Protoplasm**: Protoplasm is the living substance within a cell, which includes the cytoplasm and the nucleoplasm (the fluid inside the nucleus). It is where various cellular processes occur, and it contains various biomolecules, including proteins.

2. **Definition of Proteins**: Proteins are polymers made up of amino acids linked together by peptide bonds. The sequence and arrangement of these amino acids determine the protein's structure and function.

3. **Primary Structure of Proteins**: The primary structure of a protein refers to its linear sequence of amino acids. This is the simplest form of protein structure.

4. **Secondary Structure of Proteins**: The secondary structure arises from the folding of the primary structure into specific shapes. The two common types of secondary structures are:
- **Alpha Helix**: A coiled structure resembling a spring.
- **Beta Pleated Sheet**: A folded structure that resembles pleats.

5. **Tertiary Structure of Proteins**: The tertiary structure is formed when the secondary structures fold further into a three-dimensional shape. This structure is often globular and is crucial for the function of enzymes, which are proteins that catalyze biochemical reactions.

6. **Quaternary Structure of Proteins**: Some proteins consist of multiple polypeptide chains that come together to form a functional protein. This is known as the quaternary structure, but it is not the most common configuration found in protoplasm.

7. **Conclusion**: The most prevalent type of protein configuration found in protoplasm is the tertiary structure, as it is primarily represented by enzymes that are essential for metabolic processes.

### Final Answer:
The proteins present in protoplasm mostly show a **tertiary configuration**.

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