Lecture 22: Vascular Plant Structure and Function

These flashcards cover the essential concepts related to the structure, growth, development, and function of vascular plants as discussed in Lecture 22.

What are the three basic organs that evolved in plants to facilitate efficient resource acquisition?

Roots, Stems, Leaves.

What are the three basic types of plant tissue?

Dermal, Vascular, Ground.

What type of growth allows plants to grow throughout their life?

Indeterminate growth.

What is the function of meristems in plants?

Meristems are undifferentiated tissue that can divide to form new cells, allowing for growth.

What is the difference between primary growth and secondary growth in plants?

Primary growth elongates shoots and roots, while secondary growth adds thickness to woody plants.

How do apical meristems contribute to plant growth?

They are located at the tips of roots and shoots and are responsible for elongating these structures.

What is the role of the vascular cambium?

It adds layers of vascular tissue, such as secondary xylem (wood) and secondary phloem.

What is produced by the root apical meristem?

Root biomass, including the protective root cap.

What are the three growth zones in roots?

Zone of cell division, Zone of elongation, Zone of differentiation.

What structure allows for gas exchange in leaves?

Stomata.

What is the ABC hypothesis of flower formation?

It describes how A, B, and C genes dictate the development of flower organs: Sepals, Petals, Stamens, and Carpels.