The Question is from neet-botany plant-kingdom , and it was created by the author K SURESH KUMAR

Question

Algin is a phycocalloid, obtained from the cell walls of

K SURESH KUMAR · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Algin source in algae
	**Related Topics**: Phycocolloids, brown algae, cell wall composition
	**Prerequisites**: Knowledge of algae classification and their commercial products
## SOLUTION PATHWAY
**Given Information**:
	Phycocalloid is algin
	Need to identify source of algin.
**Method & Steps**:
	1. Recall that algin is a phycocolloid extracted from the cell walls of brown algae.
		Reasoning: Algin is a specific type of polysaccharide found in brown algae.
		Formula/Rule: None.
	2. Identify the option that lists two types of brown algae.
		Working: Laminaria and Fucus are brown algae, while the other options contain green and red algae.
		Key Point: Memorization of algae classification is essential.
	3. Select the correct option.
		Result: Laminaria and Fucus are the correct source of algin.
		Verification: Algin is commercially extracted from brown algae, including Laminaria and Fucus.
 ## OPTION ANALYSIS
[A] :x: Chlamydomonas and Volvox are green algae, not sources of algin.
[B] ✓: Laminaria and Fucus are brown algae, the source of algin.
[C] :x: Gelidium and Gracilaria are red algae, not sources of algin.
[D] :x: Ulothrix and Porphyra are green and red algae, not sources of algin.
 ## LEARNING AIDS
	**Common Mistakes**:
		1.[Error 1]: Confusing different types of algae and their products. [How to avoid]: Study the classification of algae and their specific products.
		2.[Error 2]: Not remembering the source of algin. [How to avoid]: Use flashcards or mnemonics to remember the source of algin.
	**Quick Tips**:
		1.[Helpful shortcut]: Remember that brown algae are the primary source of algin.
		2.[Memory aid]: Think 'Algin' and 'Brown Algae' together.

K SURESH KUMAR · Answer

Chlamydomonas, valvox

K SURESH KUMAR · Answer

The correct Option is "Laminaria, Fucus"

K SURESH KUMAR · Answer

Gelidium, Gracilaria

K SURESH KUMAR · Answer

Ulothrix, Porphyra

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