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

Question

Which of these is NOT a member of Phaeophyceae?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
 **Primary Concept**: Classification of Algae
 **Related Topics**: Phaeophyceae (Brown Algae), Rhodophyceae (Red Algae), Chlorophyceae (Green Algae)
 **Prerequisites**: Basic understanding of algal classification and characteristics of different algal groups.
## SOLUTION PATHWAY
**Given Information**:
  Options: Ectocarpus, Laminaria, Dictyota, Polysiphonia
  Question: Identify the alga that does not belong to Phaeophyceae (brown algae).
**Method & Steps**:
 1. Identify the algal groups to which each option belongs.
  Reasoning:  We need to determine the class of each alga provided in the options.
  Formula/Rule:  Knowledge of algal classification is required.
 2. Compare the algal group of each option with Phaeophyceae.
  Working: 
        * Ectocarpus: Belongs to Phaeophyceae.
        * Laminaria: Belongs to Phaeophyceae.
        * Dictyota: Belongs to Phaeophyceae.
        * Polysiphonia: Belongs to Rhodophyceae (red algae).
  Key Point: Phaeophyceae are characterized by their brown color due to the presence of fucoxanthin pigment.  Rhodophyceae are red due to phycoerythrin.
 3. Select the option that does not belong to Phaeophyceae.
  Result: Polysiphonia is the only alga among the given options that does not belong to Phaeophyceae.
  Verification:  Checking each option against known classifications confirms Polysiphonia as a Rhodophyte (red alga).
 ## OPTION ANALYSIS
A ✓: Ectocarpus is a brown alga belonging to Phaeophyceae.
B :x: Laminaria is a brown alga belonging to Phaeophyceae.
C :x: Dictyota is a brown alga belonging to Phaeophyceae.
D :x: Polysiphonia is a red alga belonging to Rhodophyceae, NOT Phaeophyceae.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing Phaeophyceae with other algal classes:  Remembering the key characteristics (pigments, habitat etc.) of each class helps avoid this mistake.
  2.Misidentifying the alga based on superficial resemblance:  Focus on the defining characteristics of each class.
 **Quick Tips**:
  1.Use mnemonic devices to remember the characteristics of different algal classes.
  2.Refer to a classification chart of algae for quick reference.

B VENKAT · Answer

Ectocarpus

B VENKAT · Answer

Laminaria

B VENKAT · Answer

Dictyota

B VENKAT · Answer

The correct Option is "Polysiphonia"

NEET Botany Plant Kingdom MCQs

Select Topic

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company