The Question is from neet-botany anatomy-of-flowering-plants , and it was created by the author Mr. NARESH KUMAR K

Question

Given below are two statements:
Statement I:  Endarch and exarch are terms used to describe the position of protoxylem in the plant body.
Statement II: Exarch condition is the most common feature of the root system.
In the light of the above statements, choose the correct answer from the options given below:

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: A
## CONCEPT FRAMEWORK
	**Primary Concept**: Plant Anatomy (specifically, vascular tissue arrangement)
	**Related Topics**: Xylem, Phloem, Root structure, Stem structure
	**Prerequisites**: Basic understanding of plant tissues and their organization.
## SOLUTION PATHWAY
**Given Information**:
	Two statements regarding the terms 'endarch' and 'exarch' and their relation to protoxylem position in plants.
**Method & Steps**:
	1. **Understanding 'endarch' and 'exarch'**: 
		Reasoning: These terms describe the position of protoxylem (first formed xylem) relative to metaxylem (later formed xylem) in a vascular bundle.
		- Endarch: Protoxylem is located towards the center (pith) and metaxylem towards the periphery.
		- Exarch: Protoxylem is located towards the periphery and metaxylem towards the center.
	2. **Analyzing Statement I**: 
		Working: Statement I correctly defines endarch and exarch as terms describing protoxylem position.
		Key Point:  This is a fundamental concept in plant anatomy.
	3. **Analyzing Statement II**:
		Working: Statement II is also correct. The exarch arrangement of xylem is a characteristic feature of roots in most vascular plants.
		Result: Both statements are correct.
		Verification: This is consistent with standard botanical texts and educational resources.
## OPTION ANALYSIS
[A] ✓: Both Statement I and Statement II are correct. This aligns with our analysis.
[B] :x: Both Statement I and Statement II are incorrect. This contradicts our understanding of endarch/exarch and root xylem arrangement.
[C] :x: Statement I is correct but Statement II is incorrect. Statement II is actually correct, so this option is wrong.
[D] :x: Statement I is incorrect but Statement II is correct. Statement I is correct, making this option incorrect.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing endarch and exarch: Remember 'exarch' relates to 'external' (periphery) for roots.
		2. Overlooking exceptions: While exarch is common in roots, there are exceptions, so focus on the general rule.
	**Quick Tips**:
		1. Mnemonic: 'Exarch' - 'Exit' (towards the outside in roots).
		2. Visualize the cross-section of a root to remember the xylem arrangement.

Mr. NARESH KUMAR K · Answer

The correct Option is "Both Statement I and Statement II are correct"

Mr. NARESH KUMAR K · Answer

Both Statement I and Statement II are incorrect

Mr. NARESH KUMAR K · Answer

Statement I is correct but Statement II is incorrect

Mr. NARESH KUMAR K · Answer

Statement I is incorrect but Statement II is correct

NEET Botany Anatomy of Flowering Plants MCQs

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