The Question is from neet-botany plant-kingdom phaeophycea, and it was created by the author D VINOD

Question

Which of the following is the major pigment found in Phaeophyceae?

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
 **Primary Concept**: Pigmentation in Algae
 **Related Topics**: Photosynthesis, Algae classification, Accessory pigments
 **Prerequisites**: Basic understanding of photosynthetic pigments and algal groups.
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the major pigment in Phaeophyceae (brown algae).
**Method & Steps**:
 1. Identify Phaeophyceae:
  Reasoning: Phaeophyceae is a class of brown algae.  Brown algae are characterized by their brown color, which arises from their pigment composition.
 2. Identify the major pigment:
  Working: The major pigment responsible for the brown color in Phaeophyceae is fucoxanthin.  While chlorophyll a is present, fucoxanthin is the dominant pigment that masks the green color of chlorophyll a.
  Key Point:  Fucoxanthin is a carotenoid pigment that absorbs light in the blue-green region of the spectrum, which penetrates deeper into water than red light. This is an adaptation for life in deeper waters.
 3. Select the correct option:
  Result: Fucoxanthin is the correct answer.
  Verification:  The characteristic brown color of brown algae directly points to fucoxanthin as the major pigment.
 ## OPTION ANALYSIS
A :x: Chlorophyll a is present in Phaeophyceae, but it is not the major pigment.
B :x: Phycoerythrin is the major pigment in Rhodophyceae (red algae).
C :x: Phycocyanin is the major pigment in Cyanobacteria and some other algal groups.
D ✓: Fucoxanthin is the major pigment in Phaeophyceae, giving them their characteristic brown color.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing Phaeophyceae with other algal groups (e.g., Chlorophyceae, Rhodophyceae): Carefully review the characteristic pigments of different algal classes.
  2.Focusing solely on chlorophyll a: Remember that accessory pigments play a crucial role in determining the overall color and photosynthetic efficiency of algae.
 **Quick Tips**:
  1.Associate brown color with fucoxanthin.
  2.Remember the mnemonic:  'Phaeo' sounds like 'brown', associating Phaeophyceae with brown color and fucoxanthin.

D VINOD · Answer

Chlorophyll a

D VINOD · Answer

Phycoerythrin

D VINOD · Answer

Phycocyanin

D VINOD · Answer

The correct Option is "Fucoxanthin"

NEET Botany Plant Kingdom Phaeophycea 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