The Question is from neet-botany plant-physiology translocation-of-mineral-ion, and it was created by the author K SURESH KUMAR

Question

The process by which mineral ions are transported from the soil to the xylem is primarily:

K SURESH KUMAR · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
	**Primary Concept**: Mineral ion uptake by plant roots
	**Related Topics**:  Plant physiology, transport in plants, xylem, phloem, membrane transport
	**Prerequisites**: Understanding of diffusion, osmosis, active transport, and passive transport.
## SOLUTION PATHWAY
**Given Information**:
	The question asks about the primary process of mineral ion transport from soil to xylem.
**Method & Steps**:
	1. **Understanding the process:** Mineral ions in the soil are typically at lower concentrations than in the root cells.  Simple diffusion would move ions from high to low concentration, which is the opposite of what needs to happen for uptake.
	2. **Analyzing transport mechanisms:**
		* **Diffusion:**  Movement of substances from high to low concentration. This is not the primary mechanism as ion concentration is higher in the root cells.
		* **Osmosis:** Movement of water across a semipermeable membrane. This is relevant for water uptake but not the primary mechanism for ion transport.
		* **Active transport:** Movement of substances against a concentration gradient, requiring energy (ATP). This is crucial for moving ions from the soil (low concentration) into the root cells (high concentration).
		* **Passive transport:** Movement of substances down a concentration gradient without energy expenditure. This is not the primary mechanism due to the concentration difference.
	3. **Conclusion:** Active transport is the primary mechanism that enables plants to absorb mineral ions from the soil against their concentration gradient and transport them to the xylem.
		Result: Active transport
		Verification: This aligns with the understanding of plant physiology and the need for energy-dependent processes to accumulate mineral ions in the xylem.
## OPTION ANALYSIS
A :x: Diffusion is not the primary mechanism because it moves substances down the concentration gradient, whereas mineral ions need to be moved against the gradient from soil to root.
B :x: Osmosis deals with water movement, not the transport of mineral ions.
C ✓: Active transport is the correct answer because it explains the movement of ions against the concentration gradient, requiring energy expenditure.
D :x: Passive transport is insufficient because it cannot explain the movement of ions against the concentration gradient.
## LEARNING AIDS
	**Common Mistakes**:
		1.Confusing active and passive transport: Remember that active transport requires energy, while passive transport does not.
		2.Focusing solely on osmosis: Osmosis is important for water uptake, but not the primary mechanism for ion transport.
	**Quick Tips**:
		1.Think about the concentration gradient: Ions need to move against the gradient, indicating active transport.
		2.Remember ATP's role: Active transport requires energy (ATP) to function.

K SURESH KUMAR · Answer

Diffusion

K SURESH KUMAR · Answer

Osmosis

K SURESH KUMAR · Answer

The correct Option is "Active transport"

K SURESH KUMAR · Answer

Passive transport

NEET Botany Transport in Plants Translocation Of Mineral Ion MCQs

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