5.66 Root Structures Flashcard

Front

What are root hairs?

Back

Root hairs are small, hair-like structures that extend from the root's epidermis, increasing the surface area for water and nutrient absorption.

Front

What is the main function of the epidermis in roots?

Back

The epidermis protects the root from damage and helps in the absorption of water and nutrients.

Front

Where is the vascular cylinder located in a root?

Back

The vascular cylinder is located in the center of the root, containing the primary xylem and phloem.

Front

What is the role of xylem in plants?

Back

Xylem is responsible for transporting water and dissolved minerals from the roots to the rest of the plant.

Front

What is the role of phloem in plants?

Back

Phloem transports the products of photosynthesis, primarily sugars, from the leaves to other parts of the plant.

Front

What is cambium?

Back

Cambium is a layer of tissue in plants that produces new cells for growth, specifically lateral roots and secondary growth.

Front

What is the function of the root cap?

Back

The root cap protects the growing tip of the root as it pushes through the soil.

Front

What is the pericycle?

Back

The pericycle is a layer of cells just inside the endodermis that can give rise to lateral roots.

Front

What is the endodermis?

Back

The endodermis is the innermost layer of the cortex in roots, regulating the flow of water and nutrients into the vascular cylinder.

Front

How do roots increase their surface area?

Back

Roots increase their surface area primarily through the development of root hairs.