Growth And Development in Angiosperms, Cell formation phase, Cell enlargement, Cell Differentiation, Characteristics of Living Organisms, Cell Division, Meristems, Meristematic Cells

	Home
Growth and Development in Angiosperms Growth Introduction Growth Curve Growth Regulators Auxin Functions and Uses of Auxin Gibberellins Functions of Gibberellins Effects of Auxin and Gibberellins Cytokinins Functions of Cytokinins Ethylene H₂C = CH₂Functions Absicisic Acid and Functions Synthetic Growth Hormones Agriculture Uses of Some Growth Hormones List of Hormone Actions Bioassays for Growth Hormones Seed Germination and Vegetative Growth Factors for Seed Germination Types of Seed Germination

Home >> Biology >> Growth and Development in Angiopserms >> Growth Introduction


Your Ad Here	Growth and Development in Angiosperms Growth is one of the most fundamental and conspicuous characteristics of living organisms. It may be defined as an irreversible change in structure, development of a cell, tissue or organism and may involve one of these: 1. Increase in amount of protoplasm. 2. Increase in size of cells, their numbers, organs and organ systems, of organism as a whole. 3. Increase in number of cell organelles. 4. Increase in weight.
In plants growth occurs by cell division and cell enlargement. All the cells in a plant undertake different functions depending upon their location in plant. Growth is not a simple process. It occurs in meristems. They pass through three phases during their growth which are,
1. Cell formation phase. During this phase meristematic cells divide to form new cells. These cells are thin walled with dense protoplasm and they have the same number of chromosomes and same genetic constitution.	Your Ad Here
2. Cell enlargement. During this phase, the newly formed cells absorb water osmotically resulting in increased turgidity and expansion. 3. Cell Differentiation. In this phase the thin stretched cell wall grow in thickness and gradually under go structural and physiological changes depending upon their location in plant. Thus cells of leaf having chloroplast help in photosynthesis, those of root hair, take up the function of absorption of water and minerals.

	Home
Seed Dormancy Breaking of Seed Dormancy Mobilization of Reserves During Seed Germination Photochrome Control of Seed Germination Vivipary Reproductive Phase - Flowering Photoperiodism Short Day Plants Long Day Plants Day Neutral Plants Vernalization Senescence Advantages of Senescence Plant Movements Plants Movements of Locomotion Plants Movements of Curvature Autonomic Growth Movements Paratonic Growth Movements Autonomic Variation Movements Paratonic Variation Movements