Specific organization, Biology

Specific Organization

The body of all living things, no matter how different in size or appearance, is composed of cells. Viruses are of course an exception. The study of cells shows that - each cell has a high degree of complexity and organisation and can be compared to a chemical factory, which is fully automated, self contained, pollution free and with no labour problems. It continues producing more and more living matter. The moment this process stops we say the cell is dead. Of course, the cell takes up material and energy from its environment. The nonliying substances do not have such a complex structural organization.

1457_Specific Organization.png

Figure: This figure shows in a simple manner how cells combine to form tissues and how tissues combine to form organs.

The lower organisms like ameoba, bacteria etc., are unicellular and consist of just a single cell. In contrast, the body of higher organisms like humans or a neem tree is made up of billions of cells. The cells unite to form tissues. Many tissues come together to form organs, such as heart, liver or intestine in animals (Figure).

Posted Date: 1/12/2013 2:03:45 AM | Location : United States







Related Discussions:- Specific organization, Assignment Help, Ask Question on Specific organization, Get Answer, Expert's Help, Specific organization Discussions

Write discussion on Specific organization
Your posts are moderated
Related Questions
Enzyme-activity Control Availability of the substrate, NADH and nitrate would be an important determinant of the rate of nitrate assimilation. In addition, there are number of

Q. What is Sick Sinus Syndrome? Ans. When a slow resting pulse fails to accelerate normally with exercise, it has been labeled chronotropic incompetence, however, there i

Q. Common causes related with angina pectoris? • The usual cause of angina is the narrowing of the major coronary artery due to atherosclerosis. • Systemic hypertension inc

Indications for Surgery :  The normal mitral valve area is 4-5 cm 2 . Usually symptoms appear when the valve area has become less than 2.5 cm2. Symptoms are present at rest when t

Is crossing over important for the diversity of biological evolution? The Sexual reproduction and the recombination of linked genes (crossing over) are, along with mutations, t

Bohr Effect Another important influence is the pH. Increase in carbon dioxide or other acids lowers the pH of plasma and shifts the dissociation curve to the right. At high ca

You have identified a protein in a cell that you know that comes from the human body. With respect to that protein you have also determined that it allows sodium ions to go through

PENIS - Intromittent organ. Erectile, its apex is penis glanse. Covered by prepuce (part of skin). Main function is insemination (To transfer sperms in vagina in deep).

Which of the following defines why the vast majority of segregation errors in human patients include the two sex chromosomes (XXY, XO, XYY) or chromosome 21 (triple 21)? A. The

Define Equilibrium Conditions in Multicomponent Systems? This chapter applies equilibrium theory to a variety of chemical systems of more than one component. Two different appr