Plant Organization

• The Shoot System

  -Above ground usually, elevates the

  plant above the soil.

  -Functions for photosynthesis,

  reproduction, dispersal, food and water

  conduction
• The Root System

  -Underground usually, anchor the plant

  in the soil.

  -Funtions includes absorption and

  conduction of water and nutrients, as

  well as food storage.
• THE ORGANS A.Roots

  B. Stems

  C. Leaves

  D. Flowers and fruits
• THE TISSUES A. Dermal Tissue (Simple Permanent)

  B. Ground Tissue (Simple

  Permanent)

  C. Vascular Tissue (Complex

  Permanent)

  D. Meristematic Tissue
• Two Classes of Angiosperm: Monocot and Eudicot
• MONOCOTS

  -Root xylem and phloem in a ring

  -Vascular bundles scattered in stem

  -Leaf veins are parallel patterned

  -Flowers have multiple of threes
• EUDICOT

  -Root phloem between arms of xylem

  -Vascular bundles in distinct ring in stem

  -Leaf veins form a net pattern

  -Flowers have multiple of fives
• Method in Sectioning: Longitudinal and Cross/Transverse
• Two Types of Longitudinal Section: Tangential and Radial
• Tangential Section – longitudinal section

  of a stem. Near the epidermis.
• Radial Section – longitudinal section of a

  stem that follows the radius of the stem.

  It follows and is parallel to a vascular

  ray.
• Cross/Transverse Section - a section formed by

  a plane cutting at right angles to an axis.