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

Question

Comparing small and large cells, which statement is correct?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
	**Primary Concept**: Surface area to volume ratio and its impact on cellular processes.
	**Related Topics**: Cell size, diffusion, nutrient exchange, metabolic rate.
	**Prerequisites**: Basic understanding of cell structure and function.
## SOLUTION PATHWAY
**Given Information**:
	Comparing small and large cells.
	Identifying the correct statement about surface area to volume ratio and nutrient exchange.
**Method & Steps**:
	1.	Understanding the concept of surface area to volume ratio: As a cell increases in size, its volume increases faster than its surface area. Thus, smaller cells have a larger surface area to volume ratio.
		Reasoning: This is a geometric relationship. A smaller object has a larger surface area relative to its volume compared to a larger object of the same shape.
		Formula/Rule: Surface area to volume ratio is calculated as Surface area/Volume.
	2.	Relating surface area to volume ratio to nutrient exchange: A larger surface area relative to volume facilitates faster nutrient exchange.
		Reasoning: Nutrients and waste products need to cross the cell membrane. A larger surface area allows for more efficient transport across the membrane.
	3.	Identifying the correct option: Based on the above understanding, small cells will have a large surface area to volume ratio and thus a faster rate of nutrient exchange.
		Result: Option C is the correct statement.
		Verification: A quick review of cell biology principles confirms this relationship.
 ## OPTION ANALYSIS
[A] :x: Incorrect. Small cells have a *large* surface area per volume ratio.
[B] :x: Incorrect. Exchange rate of nutrients is *slower* with large cells due to the smaller surface area to volume ratio.
[C] ✓: Correct. Small cells have a large surface area per volume ratio, which is crucial for efficient nutrient exchange.
[D] :x: Incorrect. Exchange rate of nutrients is *faster* with small cells due to the larger surface area to volume ratio.
 ## LEARNING AIDS
	**Common Mistakes**:
		1.[Error 1]: Confusing surface area and volume: Remember that as size increases, volume increases more rapidly than surface area.
		2.[Error 2]: Relating size directly to efficiency: Think in terms of surface area *relative* to volume.
	**Quick Tips**:
		1.[Helpful shortcut]: Visualize a cube - as you make it bigger, the surface area doesn't increase as much as the volume does.
		2.[Memory aid]: Small cells = large surface area:volume ratio = efficient exchange.

Mr. NARESH KUMAR K · Answer

Small cells have a small surface area per volume ratio

Mr. NARESH KUMAR K · Answer

Exchange rate of nutrients is fast with large cells

Mr. NARESH KUMAR K · Answer

The correct Option is "Small cells have a large surface area per volume ratio"

Mr. NARESH KUMAR K · Answer

Exchange rate of nutrients is slow with small cells

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