Proteins can be classified into two types on the basis of their molecular shape, i.e., fibrous proteins and globular proteins. Examples of globular proteins are

Options

A. insulin
B. keratin
C. albumin
D. myosin

Explanation

To answer the question about examples of globular proteins, we will follow these steps:

### Step 1: Understand the Classification of Proteins
Proteins can be classified based on their molecular shape into two main categories: fibrous proteins and globular proteins.

### Step 2: Define Fibrous and Globular Proteins
- **Fibrous Proteins**: These proteins have a long and narrow shape. They are typically structural proteins, providing support and strength to cells and tissues. Examples include keratin and myosin.
- **Globular Proteins**: These proteins have a compact, rounded shape and are often involved in metabolic functions. They are usually soluble in water.

### Step 3: Identify Examples of Globular Proteins
From the options provided (insulin, keratin, albumin, and myosin), we need to identify which of these are globular proteins:
- **Insulin**: A hormone that regulates glucose levels in the blood; it is a globular protein.
- **Keratin**: A fibrous protein found in hair, nails, and skin; it is not a globular protein.
- **Albumin**: A protein found in blood plasma; it is also a globular protein.
- **Myosin**: A fibrous protein involved in muscle contraction; it is not a globular protein.

### Step 4: Conclusion
The examples of globular proteins from the given options are **insulin** and **albumin**.

### Final Answer
Globular proteins include **insulin** and **albumin**.

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