PLANT TISSUES

What is the definition of a tissue?

A tissue is a group of cells that are similar in structure and work together to perform a specific function.

What role do tissues play in multicellular organisms?

Tissues provide a defined structure, offer mechanical strength, and allow for a division of labor.

What are the two main types of plant tissues?

Meristematic tissues and Permanent tissues.

What is the function of Meristematic tissues?

They are dividing tissues responsible for plant growth.

What are the characteristics of Meristematic tissues?

Continuous dividing cells, thin cellulose walls, dense cytoplasm, prominent nuclei, and few or no vacuoles.

What is Apical Meristem responsible for?

Increasing the height of the plant (primary growth).

Where is Lateral Meristem located and what does it do?

Located beneath the bark, it increases the diameter and girth of the plant (secondary growth).

What does Intercalary Meristem help with?

Increasing the length of organs like leaves.

What type of cells does Parenchyma consist of?

Living, rounded, and loosely arranged cells with thin walls.

What is the primary function of Collenchyma?

Provides mechanical support and elasticity, allowing parts of the plant to bend without breaking.

What is Sclerenchyma composed of?

Dead cells with greatly thickened walls due to lignin.

What is the role of the Epidermis in plants?

Protector layer that covers the entire plant, preventing water loss and infection.

What is Cork (Phellem) made of and its purpose?

A protective, dead, water-resistant tissue that is impervious to water and gases.

What are Complex Permanent Tissues also known as?

Vascular tissues.

What is the primary function of Xylem?

Transports water and minerals vertically through the plant.

What does Phloem transport?

Transports food from the leaves to other parts of the plant.