7. Roots

Concepts
External Structure of Roots

• Organization of Root Systems
• Structure of Individual Roots

Internal Structure of the Root

• Root Cap
• Root Apical Meristem
• Zone of Elongation
• Zone of Maturation/Root Hair Zone
• Mature Portions of the Root

Origin and Development of Lateral Roots
Other Types of Roots and Root Modifications

• Storage Roots
• Prop Roots
• Aerial Roots of Orchids
• Contractile Roots
• Mycorrhizae
• Root Nodules and Nitrogen Fixation
• Haustorial Roots of Parasitic Flowering Plants

Plants and People: Plants and People and Having a Weight Problem