Growth and development of plants, Biology

Growth and Development of Plants

You must have seen beautiful plants growing in pots in a garden. The plant grows while the pot does not. As a rule living things grow, but non-living things do not. Some non- living things however appear to grow. For example, if you suspend a crystal of alum or common salt in its saturated solution you find an increase in the size of the crystal due to the deposition of more alum or common salt around it. But if you suspend the crystal in its solvent, water, you will find that the crystal becomes smaller and may ultimately disappear. If you repeat the experiments with the plant, you will observe that the plant does not decrease or disappear. Evidently the growth of the plant takes place by the addition of more living matter.

A plant or animal usually starts its existence as a minute cell, not more than a fraction of a millimetre in diameter and grows to enormous size. The process by which a single cell becomes a full-fledged individual is known as development. It involves not only an increase in size but an increase in complexity as well. Growth and development are important characteristics of living beings. Growth involves an increase in the size of cells or an increase in the number of cells, or both. It occurs when the organism takes in food from the environment, for example, food and organises it into its own structures. A cat can live on the same food that we eat. The cat however, converts the food into its own tissues becoming a bigger cat whereas we transform the food we eat into our tissues and grow as humans. In each instance the characteristic pattern into which the nutrients are assembled is governed by the information encoded in the genes.

Posted Date: 1/12/2013 2:15:55 AM | Location : United States







Related Discussions:- Growth and development of plants, Assignment Help, Ask Question on Growth and development of plants, Get Answer, Expert's Help, Growth and development of plants Discussions

Write discussion on Growth and development of plants
Your posts are moderated
Related Questions
Q. What does this fungus looks like? Ans. The important characteristic features of aflatoxicosis are jaundice, cirrhosis. Long term exposure to aflatoxins could lead to

What is xaxim? Most pteridophytes have subterraneous stems similar to the substrate called as rhizomes. Xaxim is a kind of pteridophyte with an aerial stem in generally perpend

Define Significance and Impact of Plants and Animals on Human Life? Plants and animals both have a great significance and unparalleled impact on human life. Most of our needs a

Define Tests for the Presence of Exoenzymatic Activity? Microorganisms require various micro- and macro-nutrients for energy production and growth. These are obtained from the

why roots grow downword

why psilopsida have rootless sporophyte

Define Maternal Nutrition and Foetal Outcome? Maternal malnutrition has deleterious effects on both the mother and the offspring.  Inadequate energy intakes, iron deficiency an

How do pathological conditions affect homeostasis of your body?

Are viruses cellular beings? Viruses are measured as living beings but they do not have cellular structure. There is some argument regarding their classification as living b

Describe how the structure of chromatin and chromosomes facilitates the following functions: a) DNA packaging. b) Regulation of gene expression.  c) Replication at the