Structure and function of the ovum in the female reproductive system
The ovum (the egg cell) is the female reproductive cell in the female reproductive system, It is large (as sesame seed size) due to the storage of the nutrient materials.
Tagged: The nucleus
The movement of electrons around the nucleus and the energy levels
The movement of electrons The electrons are negatively (- ve) charged particles, They revolve around the nucleus with very high speed, The electron has a negligible mass relative to that of the proton or...
The atomic structure of the matter
The atom The atom is the fundamental building unit of the matter, and it is the smallest individual unit of the matter which can share in the chemical reactions, Boyle, Thomas, Rutherford and Bohr...
Structure of the animal cell and function of animal cell organelles
The animal tissue is composed of small units called animal cells, where each cell contains many components, The animal cells are of various sizes and have irregular shapes, and most of the cell size...