Plant Tissue Systems

Plant Tissue Systems

• Plant organs consist of three tissue systems: dermal, vascular, and ground tissue.

Dermal Tissue

• Also known as the epidermis, it is a single layer of tightly packed cells providing protection to young plant parts.
• Root hairs enhance absorption of water and minerals from the soil.

Vascular Tissue

• Forms a continuous system throughout the plant, facilitating the transport of materials.
• Xylem carries water and dissolved minerals upward from roots to shoots.
• Phloem distributes food from leaves to roots and other non-photosynthetic parts of the plant.

Ground Tissue

• Occupies the interior of the plant and contains three primary cell types: parenchyma, collenchyma, and sclerenchyma.

Roots and Stems

• Roots serve as an anchor for the plant and absorb mineral nutrients from the soil.
• Functionality of roots includes:
  • Providing support to the plant structure.
  • Absorbing, transporting, and storing nutrients.
  • Utilizing root hairs to increase absorption efficiency.

Root Structure

• The root cap protects the root tip.
• The apical meristem is the region of active growth.
• The vascular cylinder houses xylem and phloem for nutrient and water transport.