1. Distinguish between a tiny root and a root hair. What is the function of a root hair? 2. What is the difference between parasitic roots and mycorrhizae? 3. If you were shown cro... 1. Distinguish between a tiny root and a root hair. What is the function of a root hair? 2. What is the difference between parasitic roots and mycorrhizae? 3. If you were shown cross sections of a young root and a young stem from the same dicot plant, how could you tell them apart? 4. What is the function of the root cap, and from which meristem does it originate? 5. How do endodermal cells differ from other types of cells?
Understand the Problem
The questions are asking for distinctions and functions related to plant roots and cells, focusing on their structures and roles in botany.
Answer
Tiny roots are multicellular structures involved in overall absorption, while root hairs are single-cell extensions for increased absorption. Parasitic roots absorb from hosts; mycorrhizae form mutualistic fungal-root associations. Root cross-sections feature a central vascular cylinder; stem cross-sections have ringed vascular bundles. The root cap, originating from the apical meristem, protects the root tip. Endodermal cells have a selectively permeable Casparian strip.
- Tiny roots are multicellular and absorb water and nutrients; root hairs are individual cells that increase surface area for absorption. 2. Parasitic roots absorb nutrients from host plants, while mycorrhizae are beneficial fungal-root associations. 3. Root cross-sections have a central vascular cylinder; stem cross-sections have ring-arranged vascular bundles. 4. The root cap protects the root tip and originates from the root apical meristem. 5. Endodermal cells have a Casparian strip for selective absorption.
Answer for screen readers
- Tiny roots are multicellular and absorb water and nutrients; root hairs are individual cells that increase surface area for absorption. 2. Parasitic roots absorb nutrients from host plants, while mycorrhizae are beneficial fungal-root associations. 3. Root cross-sections have a central vascular cylinder; stem cross-sections have ring-arranged vascular bundles. 4. The root cap protects the root tip and originates from the root apical meristem. 5. Endodermal cells have a Casparian strip for selective absorption.
More Information
Root hairs significantly increase the surface area of roots, improving the plant's ability to absorb water and nutrients. Parasitic roots can sometimes be detrimental to their host plants, while mycorrhizal associations are usually beneficial for both partners.
Tips
Don't confuse root hairs with tiny roots as they are structurally and functionally different. Parasitism and mutualism are key to understanding parasitic roots and mycorrhizae respectively.
Sources
- Solved 1. Distinguish between a tiny root and a root hair - chegg.com
- Review Questions on Roots - Michael T. Covington Botany - coursehero.com
- Root Hair in Plants | Definition & Function - Lesson - study.com
AI-generated content may contain errors. Please verify critical information
Thank you for voting!
