The Question is from NEET guide , and it was created by the author Mr. NARESH KUMAR K

Question

What is the main form in which sugar is transported in phloem?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
	**Primary Concept**: Plant transport systems (specifically phloem transport)
	**Related Topics**: Photosynthesis, translocation, sucrose synthesis, sieve tubes, companion cells
	**Prerequisites**: Basic understanding of plant anatomy and physiology.
## SOLUTION PATHWAY
**Given Information**:
	The question asks about the main form of sugar transported in the phloem.
**Method & Steps**:
	1. Understand phloem function: The phloem is a vascular tissue in plants responsible for transporting sugars (photosynthates) from source (e.g., leaves) to sink (e.g., roots, fruits).
		Reasoning:  The phloem is optimized for efficient long-distance transport of sugars.
	2. Identify the transported sugar:  While glucose and fructose are important sugars in plants, sucrose is the primary form translocated in the phloem.
		Working: Sucrose is a disaccharide (glucose + fructose) that is readily soluble and less reactive than monosaccharides, making it ideal for transport.
		Key Point: Starch is a storage form of glucose and is too large and insoluble for efficient transport in the phloem.
	3. Final answer: Sucrose is the main form of sugar transported in the phloem.
		Result: Sucrose
		Verification: This is consistent with established botanical knowledge.
## OPTION ANALYSIS
A :x: Glucose is a monosaccharide, but not the primary form transported in phloem.  It is quickly converted to sucrose for transport.
B :x: Fructose is a monosaccharide, also not the primary form transported in phloem. It gets converted to sucrose.
C ✓: Sucrose is a disaccharide (glucose + fructose) and the primary form of sugar transported in phloem.
D :x: Starch is a polysaccharide used for storage, not transport.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing sucrose with glucose or fructose: Remember sucrose is the transport form, while glucose and fructose are components of sucrose and are primarily involved in metabolic processes.
		2. Thinking starch is involved in transport: Starch is a storage form of glucose and is not transported in phloem.
	**Quick Tips**:
		1. Remember 'Sucrose in Phloem' as a mnemonic.
		2. Understand that the phloem needs a soluble, stable sugar for efficient transport; sucrose fits this description.

Mr. NARESH KUMAR K · Answer

Glucose

Mr. NARESH KUMAR K · Answer

Fructose

Mr. NARESH KUMAR K · Answer

The correct Option is "Sucrose"

Mr. NARESH KUMAR K · Answer

Starch

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