What are the structures shown in the micrographs in FIGURE 28.13? In which plant tissue(s) can these structures be found?

FIGURE 28.13 Name the mystery structures.

To identify: The structure shown in micrograph A.

Concept introduction: Vascular plants consist of two specialized tissues called as xylem and phloem that act as a conducting tube in plants for the transportation of water and sugar molecules throughout the plant. Xylem is a vascular tissue involved in the transportation of water and minerals from the root to the leaves of plants. It also provides mechanical support and storage to the plants. Xylem consists of two types of conducting cells namely tracheids and vessel elements. Both cells are together called as tracheary element.

Tracheids are the elongated slender individual cells found in the xylem vessel. They have numerous pits in their cell wall...

To identify: The structure shown in micrograph B.

Concept introduction: Vascular plants consist of two specialized tissues called as xylem and phloem that act as a conducting tube in plants for the transportation of water and sugar molecules throughout the plant. Xylem is a vascular tissue involved in the transportation of water and minerals from the root to the leaves of plants. It also provides mechanical support and storage to the plants. Xylem consists of two types of conducting cells namely tracheids and vessel elements. Both cells are together called as tracheary element.

To identify: The structure shown in micrograph C.

Concept introduction: Vascular plants consist of two specialized tissues called as xylem and phloem that act as a conducting tube in plants for the transportation of water and sugar molecules throughout the plant. Xylem is a vascular tissue involved in the transportation of water and minerals from the root to the leaves of plants. It also provides mechanical support and storage to the plants. Xylem consists of two types of conducting cells namely tracheids and vessel elements. Both cells are together called as tracheary element.