The Question is from neet-botany biological-classification , and it was created by the author B VENKAT

Question

Which of the following bacteria plays a main role in recycling the nutrients like nitrogen, phosphorus, iron and sulphur?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Role of bacteria in biogeochemical cycles
	**Related Topics**: Autotrophic and heterotrophic nutrition, Chemosynthesis, Decomposition, Nutrient cycles (Nitrogen, Phosphorus, Sulfur, Iron)
	**Prerequisites**: Basic understanding of bacterial metabolism and nutrient cycles.
## SOLUTION PATHWAY
**Given Information**:
	Role of bacteria in recycling nutrients.
	Types of bacterial metabolism
**Method & Steps**:
	1. Identify the core task: The question asks for the type of bacteria responsible for recycling nutrients.
		Reasoning: Recycling involves converting inorganic substances into forms that can be used by other organisms.
		Formula/Rule: None
	2. Analyze options:
		Chemoheterotrophic bacteria: Obtain energy from chemical compounds but are dependent on organic carbon.
		Chemosynthetic autotrophic bacteria: Obtain energy from chemical compounds and synthesize their own organic molecules from inorganic sources.
		Parasitic bacteria: Obtain nutrients from a host organism.
		Saprophytic bacteria: Obtain nutrients from dead or decaying organic matter.
	3. Determine the correct answer:
		Result: Chemosynthetic autotrophic bacteria are the primary agents in converting inorganic substances into usable forms, thus recycling nutrients.
		Verification: Other options are either involved in organic matter decomposition or rely on organic matter for their survival.
 ## OPTION ANALYSIS
[A] :x: Chemoheterotrophic bacteria use organic compounds for energy and carbon, they don't primarily convert inorganic nutrients.
[B] ✓: Chemosynthetic autotrophic bacteria use chemical energy to convert inorganic substances into organic forms, playing a key role in nutrient cycles.
[C] :x: Parasitic bacteria obtain nutrients from living hosts and do not participate in nutrient recycling.
[D] :x: Saprophytic bacteria decompose organic matter, but they don't primarily recycle inorganic nutrients.
 ## LEARNING AIDS
	**Common Mistakes**:
		1.[Error 1]: Confusing heterotrophs and autotrophs. [How to avoid]: Understand the difference between obtaining carbon from organic vs inorganic sources.
		2.[Error 2]: Misunderstanding the role of different types of bacteria in nutrient cycles. [How to avoid]: Learn the specific functions of each type in their respective ecosystems.
	**Quick Tips**:
		1.[Helpful shortcut]: Remember that autotrophs are the primary producers who convert inorganic substances, and chemosynthetic autotrophs are the key players in nutrient recycling.
		2.[Memory aid]: Think of 'chemo' as chemical energy and 'auto' as self-feeding, and connect this to the concept of inorganic conversion.

B VENKAT · Answer

Chemoheterotrophic bacteria

B VENKAT · Answer

The correct Option is "Chemosynthetic autotrophic bacteria"

B VENKAT · Answer

Parasitic bacteria

B VENKAT · Answer

Saprophytic bacteria

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