The most abundant protein in the animal world is
(a) Trypsin
(b) Hemoglobin
(c) Collagen
(d) Insulin

Options

A. Trypsin
B. Hemoglobin
C. Collagen
D. Insulin

Answer

To solve the question regarding the most abundant protein in the animal world, we can follow these steps:

### Step 1: Understand the Question
The question asks for the most abundant protein found in the animal kingdom. We have four options to consider.

### Step 2: Analyze Each Option
- **(a) Trypsin**: This is a digestive enzyme found in the small intestine, but it is not the most abundant protein in animals.

- **(b) Hemoglobin**: This protein is crucial for transporting oxygen in red blood cells, but it is not the most abundant protein in the animal body.

- **(c) Collagen**: This protein is a major component of connective tissues and is known to provide strength and structure to various parts of the body. It accounts for approximately 30% of the total protein content in the human body and is indeed the most abundant protein in the animal kingdom.

- **(d) Insulin**: This is a hormone that regulates glucose levels in the blood but is not a structural protein and is not the most abundant.

### Step 3: Conclusion
Based on the analysis of the options, the most abundant protein in the animal world is **(c) Collagen**.

### Final Answer
The correct answer is **(c) Collagen**.

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