3. What are the two types of plant tissues, and what are meristematic tissues?

The two types of plant tissues are meristematic tissues and permanent tissues. Meristematic tissues are a group of cells that are thin-walled and compactly arranged, and are either preparing to divide, in the process of multiplication, or have the potential to divide.

4. What are the types of Meristematic tissues and how are they classified based on their position?

Meristematic tissues are classified based on position into Apical, Lateral, and Intercalary Meristem. Apical occurs at tips and increases length, Lateral occurs on sides and increases girth, and Intercalary occurs at base of leaves/internodes and increases length.

5. What are the types of Simple Permanent Tissue and what functions do they perform?

The three types of Simple  Permanent Tissues in plants are Parenchyma, Collenchyma, and Sclerenchyma. Parenchyma stores food, Collenchyma provides support and flexibility, and Sclerenchyma provides mechanical support and stress tolerance. Sclerenchyma is further classified into Fibres and Sclereids.

7. What is Xylem?

Xylem is a complex permanent plant tissue that conducts water and minerals from the roots to the different parts of the plant. It consists of four types of elements- tracheids, vessels, xylem fibers, and xylem parenchyma. Tracheids and vessels are dead cells with lignified walls while xylem parenchyma is living and stores food.

8. What is Phloem?

Phloem is the complex permanent tissue that translocates food manufactured in the leaves to the other parts of the plant. It consists of four types of elements- sieve tubes, sieve cells, companion cells, phloem parenchyma, and phloem fibers. The cells of phloem are living and phloem fibers provide mechanical support.

17. What is the function of the nervous tissue?

Nervous tissue is specialized for receiving and transmitting impulses. It helps in the communication between different parts of the body and is responsible for the coordination and control of body functions.