NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Biology
- Chapter
- Chapter
NEET 2026 · Biology · Chapter
In the given diagram of the outermost layers of a dicot stem, which...
In the given diagram of the outermost layers of a dicot stem, which labelled structure represents a typically multicellular epidermal appendage that helps in preventing water loss due to transpiration?
Options
- AC
- BD
- CB
- DA
Correct answer
D. A
Step-by-step solution
The given diagram illustrates the outermost layers of a dicot stem.
The labelled structures are:
\rightarrow A: Trichome. These are epidermal hairs present on the stem. In the shoot system, trichomes are usually multicellular. They help in preventing water loss due to transpiration.
\rightarrow B: Cuticle. It is a waxy, thick layer covering the outside of the epidermis, which also helps prevent water loss.
\rightarrow C: Epidermis. It is the outermost, single layer of cells.
\rightarrow D: Cortex. These are the layers of cells situated below the epidermis.
The question asks for a typically multicellular epidermal appendage that helps prevent water loss, which accurately describes the trichome (labelled A).
Answer: A
The labelled structures are:
\rightarrow A: Trichome. These are epidermal hairs present on the stem. In the shoot system, trichomes are usually multicellular. They help in preventing water loss due to transpiration.
\rightarrow B: Cuticle. It is a waxy, thick layer covering the outside of the epidermis, which also helps prevent water loss.
\rightarrow C: Epidermis. It is the outermost, single layer of cells.
\rightarrow D: Cortex. These are the layers of cells situated below the epidermis.
The question asks for a typically multicellular epidermal appendage that helps prevent water loss, which accurately describes the trichome (labelled A).
Answer: A