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

Question

Which of the following is a unicellular alga?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: A
## CONCEPT FRAMEWORK
 **Primary Concept**: Classification of algae based on cellularity
 **Related Topics**: Algae morphology, taxonomy of algae
 **Prerequisites**: Basic knowledge of algal diversity
## SOLUTION PATHWAY
**Given Information**:
  Options: Chlamydomonas, Spirogyra, Volvox, Fucus
  Question: Identify the unicellular alga.
**Method & Steps**:
 1. Analyze each option for unicellularity.
  Reasoning:  Unicellular means consisting of a single cell.
  Formula/Rule: N/A
 2. Identify the alga known for its unicellular nature.
  Working: Chlamydomonas is a well-known unicellular green alga. Spirogyra, Volvox, and Fucus are multicellular.
  Key Point:  Understanding the morphology of different algae is crucial.
 3. Select the correct option.
  Result: Chlamydomonas (A)
  Verification: Chlamydomonas is indeed a unicellular alga.
 ## OPTION ANALYSIS
A] ✓: Chlamydomonas is a genus of unicellular green algae.
B] :x: Spirogyra is a filamentous green alga, meaning it is composed of multiple cells arranged in a thread-like structure.
C] :x: Volvox is a colonial green alga, forming spherical colonies of many cells.
D] :x: Fucus is a brown alga, and is multicellular and macroscopic (large enough to see with the naked eye).
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing unicellular with colonial or filamentous forms: Colonial algae like Volvox appear as a single unit but are composed of many cells. Filamentous algae like Spirogyra are chains of cells.
  2.Lack of familiarity with common algal genera: Studying the morphology and characteristics of various algae is important for accurate identification.
 **Quick Tips**:
  1.Remember the key characteristics of common unicellular algae like Chlamydomonas (flagella, single cell).
  2.Use diagrams and images to visualize the different algal forms.

Mr. NARESH KUMAR K · Answer

The correct Option is "Chlamydomonas"

Mr. NARESH KUMAR K · Answer

Spirogyra

Mr. NARESH KUMAR K · Answer

Volvox

Mr. NARESH KUMAR K · Answer

Fucus

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