Question

Growth of plant is restricted to certain regions give reason for this fact. mention two growth regions in plants

Answer 1

HERE IS YOUR ANSWER:

This is because for growth of the plant certain meristamatic tissues are situated at the growing areas of the plants ( such as leaves, roots, buds, etc.), so growth is restricted in the regions of the plant where those meristamatic tissues are not situated.

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Answer 2

Answer:

This is because, the ever dividing tissue, meristematic tissues are present at specific regions of plants only. and on the basis of their locations, they are of different types.

Explanation:

• Plants multiply by creating a large number of immature cells, which are then expanded and matured. The tops and edges of the plant parts are where the new cells are created (roots, stems, leaves). These cells expand behind the regions where new cells are being produced. Water pressure must build up inside the expanding cells in order to force the cell walls to stretch (enlarge).
• Plant metabolites (sugars, proteins, etc.), which are integrated into the new plant material created by cell expansion, are necessary for cell enlargement. The sugars created by sunlight are used to create the metabolites. It takes light energy to power photosynthesis.
• Therefore, for a plant to expand, it needs new cells, lots of water inside the plant, and active photosynthesis to make lots of metabolites, which causes the cells to grow bigger. The plant's hormones and enzymes work together to carry out the intricate system. Genes on the chromosomes of the cells carry out the creation of enzymes (proteins) and hormones. A magnificent, flawless, graceful process when the right environmental factors are present (light intensity, temperature, moisture, and nutrients). Self-programmed, self-executing, and totally independent of us. A redwood or a dandelion might result from the procedure. been doing it for a very long time.
• Plants have certain cells that divide periodically during the course of their existence. Meristematic cells are what these cells are named.
• Undifferentiated cells that eventually develop into specialised organs are found in a tissue called a meristem.
• Depending on where they exist, meristems might be one of three types:
• They can be found at the root and shoot tips, or apical meristem.
• They can be found at inter-nodes and close to nodes as intercalary meristems.
• These cells, known as lateral meristems, aid in the plant's growth in both diameter and girth.