Plant Structure and Function Assessment

The video tutorial explores the structure of plant roots and stems, focusing on key components such as the epidermis, cortex, xylem, and phloem. It explains how these structures function and their importance in plant physiology. The transition from root to stem is detailed, highlighting the branching of xylem and phloem and the role of pith in providing structural support. Microscopic views are used to compare and contrast the theoretical diagrams with real-life images, enhancing understanding of plant anatomy.

What is the outermost layer of the root called?

• Epidermis

• Endodermis

• Phloem

• Cortex

Which structure in the root is responsible for transporting water and minerals?

• Epidermis

• Cortex

• Xylem

• Phloem

In the microscope image of the root, what is the arrangement of the xylem?

• A solid block

• One large pipe

• Many small pipes

• A single circle

What happens to the xylem as it transitions from the root to the stem?

• It disappears

• It branches out

• It remains in the center

• It becomes a single pipe

What is the function of pith in the stem?

• Transport nutrients

• Store water

• Provide structural support

• Photosynthesis

Which component of the stem is responsible for producing new cells?

• Lignin

• Xylem

• Phloem

• Vascular cambium

What is the role of lignin in the stem?

• Store nutrients

• Photosynthesis

• Provide strength

• Transport water

How are the vascular bundles arranged in the stem compared to the root?

• In a single line

• In the periphery

• Scattered throughout

• In the center

In the microscope image of the stem, which component is much smaller and harder to see?

• Lignin

• Pith

• Xylem

• Phloem

What is the main difference between the root and stem structures?

• Root has pith

• Root has lignin

• Stem has endodermis

• Stem has multiple vascular bundles