Plant Organs and Functions

What is the shape of meristematic cells?

What is the composition of the cell wall in meristematic tissue cells?

What is the main function of the roots in a tree?

What is the nature of the cytoplasm in meristematic tissue cells?

What is the characteristic of the nucleus in meristematic tissue cells?

What type of tissue is responsible for the growth of a plant in length and breadth?

What is the primary reason for the formation of tissue in plants?

What is the term for a group of similar cells that originate from the same source and perform the same function?

How do meristematic tissue cells divide?

What is the characteristic of cells in meristematic tissue?

What is the other name for meristematic tissue?

What is the function of the stem in a plant?

How many main types of tissues are present in a plant?

Plant Organs and Tissues

A tree can be divided into different organs, including roots, stems, leaves, and flowers.
Each organ has a unique origin, structure, and function.

Functions of Plant Organs

Roots hold the tree in place and absorb water and mineral salts from the soil.
Leaves produce food through photosynthesis.
Stems transport water and mineral salts from roots to leaves and distribute food to other organs.

Tissues

A tissue is a group of similar cells that originate from the same source and perform the same function.
The main reason for tissue formation is division of labor among body-forming cells.

Classification of Tissues

There are two main types of tissues: meristematic tissue and permanent tissue.

Meristematic Tissue

Meristematic tissue is composed of cells that continuously divide, leading to growth in length and breadth.
Features of meristematic tissue:
- Cells are living, small, and isodiametric.
- Cells are capable of division.
- Cells are generally rectangular, oval, pentagonal, or hexagonal.
- Cells have thin cell walls composed of cellulose.
- Nucleus is large and dense, with granular cytoplasm.
- No cell vacuole is present.
- Cells are densely arranged with no intercellular spaces.
- Metabolic rate is high, and cells are always in an active metabolic state.
- No reserved, secreted product or waste is present inside cells.
- Plastids remain in a proplastid state.
- Cells are usually small, with almost equal length and breadth.
- Meristematic tissue is composed of immature cells.
- Cells divide by mitosis process.

This quiz covers the different organs of a tree, including roots, stems, leaves, and flowers, and their unique structures and functions. Test your knowledge of plant anatomy and physiology!