The Question is from neet-zoology animal-kingdom , and it was created by the author A SUBRAMANYAM

Question

The unique 'dermal membrane' observed in some homoscleromorph sponges is primarily composed of which cell type?

A SUBRAMANYAM · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [D]
## CONCEPT FRAMEWORK
	**Primary Concept**: Cell types in sponges
	**Related Topics**: Sponge anatomy, Homoscleromorph sponges, Cell functions
	**Prerequisites**: Basic knowledge of sponge biology and cell types
## SOLUTION PATHWAY
**Given Information**:
		- Homoscleromorph sponges are a group of sponges with unique characteristics.
		- The dermal membrane is a distinct feature of these sponges.
**Method & Steps**:
	1. Identify the cell types present in sponges.
		Reasoning: Sponges have various cell types, each serving specific functions.
		Formula/Rule: None applicable.
	2. Focus on the dermal membrane's composition.
		Working: The dermal membrane is known to be composed primarily of pinacocytes, which are flat cells that cover the outer surface of the sponge.
		Key Point: Pinacocytes provide structural integrity and protection.
	3. Conclude on the primary cell type making up the dermal membrane.
		Result: The dermal membrane is primarily composed of pinacocytes.
		Verification: Confirmed through the anatomical study of homoscleromorph sponges.
## OPTION ANALYSIS
[A] :x: Choanocytes are involved in feeding and water flow, not in the dermal membrane.
[B] :x: Archaeocytes are versatile cells but not the main component of the dermal membrane.
[C] :x: Sclerocytes are responsible for producing skeletal elements, not forming the dermal layer.
[D] ✓: Pinacocytes are the correct option as they form the outer layer of the sponge body.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing the functions of different cell types: Remember the specific roles of choanocytes, archaeocytes, sclerocytes, and pinacocytes.
		2. Overlooking the unique features of homoscleromorph sponges: Pay attention to the specialized characteristics that differentiate them.
	**Quick Tips**:
		1. Recall that the term 'dermal' refers to the outer layer, helping to remember which cells are involved.
		2. Use mnemonics to memorize the functions of sponge cell types.

A SUBRAMANYAM · Answer

Choanocytes

A SUBRAMANYAM · Answer

Archaeocytes

A SUBRAMANYAM · Answer

Sclerocytes

A SUBRAMANYAM · Answer

The correct Option is "Pinacocytes"

NEET Zoology Animal Kingdom MCQs

Select Topic

Question Tags

NEET Subjects

Our Bots

Company