Plant Tissues

(Epi) Dermal Tissue

Outermost layer covered with waxy cuticle layer/root hairs in roots and stomata

(Epi) Dermal Tissue (Woody Plants)

Contain bark/cork

Ground Tissue Function

Photosynthesis + storage + structural support

Parenchyma (Ground Tissue)

Least specialized cells, in all plant organs, capable of cell division, performs metabolic functions (photosynthesis), repairs + heals wounds

Collenchyma (Ground Tissue)

Thicker 1° walls for flexibility + support, arranged in bundles under epidermis

Sclerenchyma (Ground Tissue)

Thick 2° walls w/ lignin for support + protection - nonliving

Vascular Tissues

Bundles

Xylem (Vascular Tissue)

Dead, transports water + minerals from roots→ leaves

Phloem

Living, transports sugars and organics from leaves to roots (and all around)

Vascular Cylinder

Central core of plant roots and stems containing vascular tissues (xylem and phloem), pericycle, and sometimes pith

Mycorrhizaes

Symbiotic relationship between fungi and plant roots - fungi extend root system to improve nutrient/water uptake, plant provides sugars

Root Nodules

Small swellings found on the roots of certain plants, primarily legumes that house symbiotic nitrogen-fixing bacteria

Rhizomes

Horizontal, underground plant stem that acts as a storage organ and a method of asexual reproduction