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

Question

Choose odd one out w.r.t. facilitated diffusion.

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Facilitated Diffusion
	**Related Topics**: Passive Transport, Active Transport, Membrane Proteins, Saturation Kinetics, Enzyme Inhibition
	**Prerequisites**: Understanding of cell membrane transport mechanisms, differences between passive and active transport.
## SOLUTION PATHWAY
**Given Information**:
	* The question asks for the characteristic that does not belong to facilitated diffusion.
	* Options describe different aspects of transport mechanisms.
**Method & Steps**:
	1. **Understanding Facilitated Diffusion**: Facilitated diffusion is a type of passive transport that uses transport proteins to move molecules across the cell membrane along the concentration gradient.
		Reasoning: It does not require energy input (ATP).
	2. **Analyzing Option A (Highly selective)**: Facilitated diffusion is highly selective as it involves specific transport proteins for specific molecules.
		Key Point: This is a characteristic of facilitated diffusion.
	3. **Analyzing Option B (Uphill and needs ATP)**: Uphill transport refers to movement against the concentration gradient, which requires energy (ATP). This is characteristic of active transport, NOT facilitated diffusion.
		Key Point: This is not a feature of facilitated diffusion.
	4. **Analyzing Option C (Transport achieves saturation)**: Facilitated diffusion exhibits saturation kinetics because the number of transport proteins is limited.
		Key Point: This is a characteristic of facilitated diffusion.
	5. **Analyzing Option D (Affected by protein inhibitors)**: Since it involves transport proteins, facilitated diffusion can be affected by protein inhibitors.
		Key Point: This is a characteristic of facilitated diffusion.
	6. **Identifying the Odd One Out**: Option B is the characteristic of active transport, not facilitated diffusion.
		Result: Option B is the odd one out.

## OPTION ANALYSIS
[A] :x: Highly selective is a characteristic of facilitated diffusion.
[B] ✓: Uphill transport requiring ATP is a characteristic of active transport, not facilitated diffusion.
[C] :x: Transport achieving saturation is a characteristic of facilitated diffusion.
[D] :x: Being affected by protein inhibitors is a characteristic of facilitated diffusion.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing active and passive transport: Remember that facilitated diffusion is passive and doesn't use ATP.
		2. Misunderstanding saturation kinetics: Saturation occurs when all transport proteins are occupied.
	**Quick Tips**:
		1. Remember the key feature of facilitated diffusion: movement along a concentration gradient with the help of proteins.
		2. Associate ATP with active transport, not facilitated diffusion.

Mr. NARESH KUMAR K · Answer

Highly selective

Mr. NARESH KUMAR K · Answer

The correct Option is "Uphill and needs ATP"

Mr. NARESH KUMAR K · Answer

Transport achieves saturation

Mr. NARESH KUMAR K · Answer

Affected by protein inhibitors

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