Plant Structure and Function Concepts

This video tutorial by Perfect Scores covers the anatomy and physiology of dicot and monocot plants, focusing on the root, stem, and leaf structures. It provides detailed explanations of the differences and similarities between dicots and monocots, including the epidermis, cortex, vascular bundles, and other key components. The video also highlights special features in monocots, such as polyarch roots and undifferentiated mesophyll in leaves.

What are the three main organs discussed in the video with respect to dicots and monocots?

• Stem, leaf, and seed

• Root, stem, and flower

• Root, stem, and leaf

• Leaf, flower, and fruit

In a dicot root, what is the function of the endodermis?

• To store nutrients

• To allow water movement

• To prevent water movement

• To support the plant

What is a key difference between monocot and dicot roots?

• Monocot roots have fewer protoxylem bundles

• Dicot roots have a larger pith

• Monocot roots have more protoxylem bundles

• Dicot roots lack a pericycle

In dicot stems, how are the vascular bundles arranged?

• Scattered throughout

• In a ring

• In a spiral

• Randomly

Which part of the dicot stem is responsible for secondary growth?

• Pith

• Cortex

• Epidermis

• Cambium

What is the primary function of the pith in plant stems?

• Transport water

• Store nutrients

• Photosynthesis

• Protect the plant

What type of tissue is the hypodermis in monocot stems made of?

• Sclerenchyma

• Epidermis

• Collenchyma

• Parenchyma

Which layer in a dicot leaf contains chloroplasts for photosynthesis?

• Vascular bundle

• Mesophyll

• Cuticle

• Epidermis

In monocot leaves, what is a unique feature of the epidermis?

• Presence of trichomes

• Stomata on both sides

• Differentiated mesophyll

• Lack of stomata

What is the role of bulliform cells in grasses?

• To protect against herbivores

• To store food

• To absorb water and expose the leaf surface

• To transport nutrients