Question:
The protein obtained from animal source that is incomplete is:
The protein obtained from animal source that is incomplete is:
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Even though Gelatin is an animal protein, it cannot be the sole source of protein in a diet because it lacks Tryptophan. Always pair incomplete proteins with complementary sources.
Updated On: Jul 4, 2026
- Meat
- Fish
- Gelatin
- Eggs
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The Correct Option is C
Solution and Explanation
Concept:
Proteins are classified as complete or incomplete based on their amino acid profile.
• Complete proteins: Contain all nine essential amino acids in sufficient amounts.
• Incomplete proteins: Lack one or more essential amino acids.
• Most animal proteins are complete, while most plant proteins are incomplete.
Step 1: Analyzing animal-derived proteins.
Meat, fish, and eggs are standard examples of high-quality complete proteins. They provide all the essential amino acids required by the human body.
Step 2: Identifying the exception in animal sources.
Gelatin is derived from the collagen found in animal connective tissues. During processing, certain amino acids are lost or are naturally absent.
Step 3: Determining why Gelatin is incomplete.
Gelatin completely lacks the essential amino acid Tryptophan. Because it misses an essential amino acid, it is classified as an incomplete protein. Final Answer: (C)
• Complete proteins: Contain all nine essential amino acids in sufficient amounts.
• Incomplete proteins: Lack one or more essential amino acids.
• Most animal proteins are complete, while most plant proteins are incomplete.
Step 1: Analyzing animal-derived proteins.
Meat, fish, and eggs are standard examples of high-quality complete proteins. They provide all the essential amino acids required by the human body.
Step 2: Identifying the exception in animal sources.
Gelatin is derived from the collagen found in animal connective tissues. During processing, certain amino acids are lost or are naturally absent.
Step 3: Determining why Gelatin is incomplete.
Gelatin completely lacks the essential amino acid Tryptophan. Because it misses an essential amino acid, it is classified as an incomplete protein. Final Answer: (C)
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