Types of growth, Biology

KINDS OF GROWTH -

1.      AUXETIC GROWTH -

Body grows by enlargement of its cells without increase in number of cells.

eg. Nematodes, rotifers, tunicates. Growth of body muscle by excercise.

2.      MULTIPLICATIVE GROWTH -

It is due to increase in the number of cells as common in embryo.

3.      ACCRETIONARY GROWTH -

In post embryonic devlopment power of cell division is lost.

At some places reserve cells present, divide, producing new cells to replace the worm out cells, eg. Stratum malpighi

4.      APPOSITIONAL GROWTH -

It involves the addition of new layer on the previously formed layers.

eg. in cell wall. Addition of lamella in the formation of bone.

Posted Date: 10/4/2012 5:47:32 AM | Location : United States







Related Discussions:- Types of growth, Assignment Help, Ask Question on Types of growth, Get Answer, Expert's Help, Types of growth Discussions

Write discussion on Types of growth
Your posts are moderated
Related Questions
assignment help on radiation pollution

Is transportation of gases in tracheophytes made through the vascular tissues? Carbon dioxide and oxygen are not transported by the xylem or phloem. These gases reach the cells

As a result of DNA replication two DNA molecules come into existence. Why is it not correct to assert that two "new" DNA molecules are created? What is the name given to the proces

Explain the Invasive species? Tens of thousands of non-native species have been introduced into the United States of America, with more arriving each year. These species can ha

What is cytosolic cyclic AMP Healthy Person P takes a new drug that is a member of a drug family that results in  constant levels of cytosolic cyclic AMP (cAMP) in one and only

If water dousing, homeopathic cures, and so on work for just me but not for anyone else, it is still science.

Bomb calorimeter is used to determine the calorific value of solid and liquid fuels. Construction          It consists of following parts 1.      Stainless steel bomb:

Q. Explain about Myocardial Infarction? It is an initial acute phase of cardiovascular disease caused by the blockage of a coronary artery supplying blood to the. Heart shows t

Determine the alpha-islet cells of the pancreas. Person X is a healthy human who has volunteered to take experimental drug Y.  Person X has a normal dinner at 6 PM on April 1 a

Q. What are the few examples of movement created by the contraction of sarcomeres of the muscle cells? The handling of a cup of coffee, the peristaltic movements of the bowels,