embryo cell specialization

The fertilised egg undergoes a regular sequence of divisions to form the embryo. The oospore divides to form a suspensor or basal cell and a terminal embryo cell. The basal cell is towards the micropyle and the terminal cell is towards th..

Special Type of Germination: Vivipary - This is a special type of germination found in mangrove plants. Mangrove plants are found in marshy areas and on the sea coast. In viviparous germination, the seeds germinate while still attached to the parent plant. The embryo g..

Simple epithelium may sometimes become modified for some specific functions. Two such modifications are very common, namely, ciliated epithelium and glandular epithelium. Ciliated epithelium is always a modification of columnar epithelium. Here, the cells are characterized by the presence..

.8 - Cell Structure of Cyanobacteria The planktonic forms contain gas vacuoles in their cells to help in floating. Some cyanophycean members possess special types of cells called heterocysts, as in Anabena and Nostoc. They are large, thick walled, round ..

. It is applicable to almost all living organisms and it incorporates nearly all the modern findings about cells. In unicellular organisms, the single cell that comprises the body leads a totally autonomous existance. The various cell organelles perform the vital body ..

Molecular Basis of Differentiation - All the cells of an organism receive the complete set of genes (total information) present in the fertilized egg through mitotic divisions. However, cells of an early embryo lose the potential for the expression of all the genes thr..

During germination the cells of the embryo resume metabolic activity. The stored fats, proteins and starch are digested. The insoluble food is made soluble and complex food is made simple. Assimilation of this food by the growing embryo induces growth and the seedling ..

Post embryonic growth in some special cells to reinforce and replace the worn out differentiated cells..

It is one of the branches of biology which deals with the formation and development of the embryo. The events from initiation of the flower buds to be full development of the embryo are generally considered under embryology. In the earlier stages of embryo development ..

Sexual reproduction involves the formation and fusion of special sex cells called gametes. It is a complex proce..