cell organisation in the human body

Types of Unit Cells - There are three types of non-primitive unit cells. Taking the example of a cubic unit cell we can see that there are three types. They are: fig 2.2 - Types of unit cells..

It is a metabolic disorder characterised by a decreased oxygen transport in the blood. The decrease is due to the presence of a defective haemoglobin (HbS) in place of the normal haemoglobin (Hb). HbS has a very low affinity for oxygen. As a result, there is a decrease in the blood supply to vital..

1) Cancer cells show uncontrolled mitotic divisions causing unorganised growth 2) Due to uncontrolled growth and division of cells, a tumour (also called Neoplasm is generally formed) 3) Cancer cells are far less adhesive than the normal cells, so these gener..

>Mitosis occurs in all the living cells of the body of an organism. Hence it is called somatic cell division. Mitosis is described as equational division since the chromosome number of daughter cells will be same as that of the parent cell. Mitosis ..

Animal Cell Plant Cell Usually smaller in size. Usually larger in size. Cell wall absent. Cellulose in any form is absent. Cell wall made up of cellulose is present. Cytoplasm is denser, more granular and occupies most of the space in the ..

Fibrocytes are stellate or star shaped cells, which produce the matrix and white and yellow fibres. Macrophages are irregular, amoeboid cells which can ingest bacteria and other disease producing germs by phagocytosis. Mast cells are spherical or oval cell..

The body wall is dermo muscular. It consists of a thin cuticle, and epidermis and musculature. The cuticle is an elastic non-cellular covering. Epidermis is represented by a layer of columnar epithelial cells, represented by supporting cells, glandular cells,..

In addition to the particles at the corner of the cube, there is one present at the body centre position of the unit cell. Another type of unit cell, called end centered unit cell, is possible for orthorhombic and monoclinic crystal types. In an end centered..

Our body needs to grow. Due to constant wear and tear in the body, new cells have to be built to repair the damaged parts. Proteins like milk, eggs, meat, cheese and dal help in body buildi..

Distance between nearest neighbor ..