Types of growth, Biology

Assignment Help:

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.


Related Discussions:- Types of growth

Binding site, Binding site  is the place on cellular DNA to which a protein...

Binding site  is the place on cellular DNA to which a protein (like transcription factor) can bind. Typically, binding sites may be found in the vicinity of genes, and would be inv

Explain control function of organic molecules, What are some examples of th...

What are some examples of the control and informative function of organic molecules? Based on genetic information, organic molecules control the whole work of the cell. The nuc

What is cytogenetics, What is Cytogenetics? Before the advent of modern...

What is Cytogenetics? Before the advent of modern technology, the American biologists Thomas Hunt Morgan, G.W. Beadle, H. Sturtevant, Barbara McClintock, and others contributed

Explain the bioavailability of vitamin d, Explain the Bioavailability of Vi...

Explain the Bioavailability of Vitamin D? The nutritional availability of vitamin D is less significant because it can be endogenously produced and retained for long periods by

What is bone remodeling, Bone Remodeling Bone remodeling differs from t...

Bone Remodeling Bone remodeling differs from the other means of bone structure alteration in that osteoblasts and Osteoclasts do not act independently but are coupled and bone

Hypomagnesaemic tetany of calves, Hypomagnesaemic tetany of calves You...

Hypomagnesaemic tetany of calves Young calves in the age group of 2-8 weeks and fed whole milk or milk replacer are more likely to develop hypomagnesaemia due to inadequate ma

Define proteins as structural elements and structural units, Define Protein...

Define Proteins as Structural Elements and Structural Units? The liver cell membrane analysis shows that this membrane contains 50-60% protein, 35% lipids and 5% carbohydrates.

Polyarthritis, It is the most common (occurring in 75 per cent cases of ARF...

It is the most common (occurring in 75 per cent cases of ARF) manifestation of ARF. It involves large joints, it is typically fleeting in character shifting from one large joint t

Several types of steam sterilizer, The several types of steam sterilizers t...

The several types of steam sterilizers that are in use. 1. Lab Autoclave 2. Hospital dressing sterilizer 3. Bowl & instrument sterilizer 4. Rapid cooling sterilizer

What is the salivary digestive enzyme, Q. What is the salivary digestive en...

Q. What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food? The salivary hydrolase is known as sali

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd