The Question is from neet-chemistry , and it was created by the author Mr. S M HUSSAIN

Question

Concanavalin A is primarily derived from which source?

Mr. S M HUSSAIN · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
	**Primary Concept**: Plant Lectins
	**Related Topics**: Biochemistry, Immunology, Glycobiology
	**Prerequisites**: Basic understanding of protein sources and their applications.
## SOLUTION PATHWAY
**Given Information**:
	The question asks about the source of Concanavalin A.
**Method & Steps**:
	1. **Recall the source of Concanavalin A:** Concanavalin A (ConA) is a lectin (a carbohydrate-binding protein) originally extracted from the jack bean.
	Reasoning: Lectins have specific binding affinities for carbohydrates. ConA specifically binds to mannose and glucose.
	2. **Identify the correct option:** The correct option is 'Jack bean'.
	Result: Jack bean is the primary source of Concanavalin A.
	Verification: This information is widely available in biochemistry textbooks and research articles related to ConA.
## OPTION ANALYSIS
[A] :x: Castor bean:  While castor beans are a source of another lectin called ricin, they are not the source of Concanavalin A.
[B] :x: Soybean: Soybeans contain lectins, but not Concanavalin A.
[C] ✓: Jack bean: This is the correct source of Concanavalin A.
[D] :x: Kidney bean: Kidney beans also contain lectins, notably phytohaemagglutinin, but not Concanavalin A.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing different plant lectins and their sources: Many plants produce lectins, and it's easy to mix them up.  Focus on remembering specific source-lectin pairs.
		2.  Overlooking the 'primarily' in the question: While trace amounts of ConA-like proteins might be found in other plants, the jack bean is the primary and significant source.
	**Quick Tips**:
		1. Mnemonic:  'ConA - JackA' to link Concanavalin A with Jack bean.
		2.  Remember that ConA is frequently used in biological research for its carbohydrate-binding properties, and its source is crucial for understanding its applications.

Mr. S M HUSSAIN · Answer

Castor bean

Mr. S M HUSSAIN · Answer

Soybean

Mr. S M HUSSAIN · Answer

The correct Option is "Jack bean"

Mr. S M HUSSAIN · Answer

Kidney bean

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