The Question is from neet-botany anatomy-of-flowering-plants dicot-stem, and it was created by the author B VENKAT

Question

Which tissue in a mature, woody dicot stem is primarily responsible for transporting water and minerals absorbed by the roots?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Plant vascular tissue and its function in water and mineral transport.
	**Related Topics**: Dicot stem anatomy, xylem, phloem, heartwood, sapwood, pith, cortex.
	**Prerequisites**: Basic understanding of plant structure and function.
## SOLUTION PATHWAY
**Given Information**:
		Mature, woody dicot stem.
		Question focuses on water and mineral transport from roots.
**Method & Steps**:
	1. Identify the vascular tissue responsible for water transport.
		Reasoning:  Xylem is the vascular tissue responsible for transporting water and minerals from the roots upward in plants.
		Formula/Rule: N/A
	2. Distinguish between the different tissues in a woody dicot stem.
		Working:  Heartwood is older, non-functional xylem; sapwood is younger, functional xylem; pith is the central core of the stem; cortex is the outer layer of the stem.
		Key Point: Sapwood is the active part of the xylem, responsible for water transport.
	3. Determine which tissue best fits the description.
		Result: Sapwood is the tissue primarily responsible for transporting water and minerals.
		Verification:  The function of sapwood aligns directly with the question's description of water and mineral transport.
 ## OPTION ANALYSIS
A :x: Heartwood is composed of dead xylem cells and primarily provides structural support. It does not actively transport water and minerals.
B ✓: Sapwood is the active part of the xylem, responsible for the bulk of water and mineral transport in mature woody dicots.
C :x: Pith is the central, soft tissue in the stem, primarily for storage, and not involved in major water transport.
D :x: Cortex is the outer layer of the stem, primarily involved in storage and photosynthesis, not directly responsible for long-distance water transport.
 ## LEARNING AIDS
	**Common Mistakes**:
		1.Confusing heartwood and sapwood: Remembering that sapwood is the active, water-conducting xylem is key.
		2.Focusing on phloem: Phloem transports sugars, not water and minerals.
	**Quick Tips**:
		1.Remember that xylem transports water and minerals upwards, while phloem transports sugars both up and down.
		2.Visualize a cross-section of a woody dicot stem and locate the sapwood in relation to other tissues.

B VENKAT · Answer

Heartwood

B VENKAT · Answer

The correct Option is "Sapwood"

B VENKAT · Answer

Pith

B VENKAT · Answer

Cortex

NEET Botany Anatomy of Flowering Plants Dicot Stem MCQs

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