Plant Root Structures and Functions

The video explores the anatomy of angiosperm roots, focusing on the internal structures and functions of both dicot and monocot roots. It explains the differences between tap and fibrous roots, the arrangement of vascular bundles, and the roles of various root layers such as the epidermis, cortex, endodermis, and pericycle. The video also highlights the differences in secondary growth and vascular bundle arrangement between dicot and monocot roots.

What is the primary function of roots in plants?

• To produce flowers

• To absorb water and nutrients

• To perform photosynthesis

• To attract pollinators

Which type of root is typically found in dicot plants?

• Adventitious roots

• Aerial roots

• Tap roots

• Fibrous roots

What is the outermost layer of a dicot root called?

• Epidermis

• Endodermis

• Pericycle

• Cortex

What is the function of root hairs?

• To protect the root

• To increase surface area for absorption

• To store food

• To transport nutrients

What role does the pericycle play in dicot roots?

• It forms the outermost layer

• It is involved in secondary growth

• It stores nutrients

• It transports water

How are xylem and phloem arranged in dicot roots?

• In a random manner

• In a parallel manner

• In a radial alternating manner

• In a circular manner

What is a key difference between monocot and dicot roots?

• Monocot roots have a larger pith

• Dicot roots have more vascular bundles

• Dicot roots lack a cortex

• Monocot roots undergo secondary growth

How many vascular bundles are typically found in monocot roots?

• 2 to 4

• 4 to 6

• 8 to 10

• 6 to 8

What is the function of the pith in monocot roots?

• To protect the root

• To transport sugars

• To store nutrients

• To absorb water

Which of the following is true about monocot roots?

• They have a small, underdeveloped pith

• They undergo secondary growth

• They lack an endodermis

• They have more than six vascular bundles