Meiosis explained
By: Jael Ravalyn
MEISOSIS is how sperm and eggs sex cells are made (well, and spores for plants but that is actually more of a birds and bees thing) meiosis, then, is quite necessary for the perpetuation of a species. (A quick note: differentiate meiosis from mitosis...
By: Tarek Musslimani
In this article I will discuss the composition of cells on the molecular level as far as molecules are concerned. The collection of molecules that are present in the cells is called protoplasm. The protoplasm of cells includes water and electrolytes and lipids in addition...
By: Tarek Musslimani
Cells are in general divided into two types. These are: eukaryotes and prokaryotes. Simply speaking, eukaryotic cells differ than prokaryotes by the absence of nuclei in the latter with all accompanied characteristics to this such as inability to divide and the lack of the ability...
By: Tarek Musslimani
Nevus, or as it is often called in common language, mole, is a benign neoplasm that can affect any of the cell types that populate the skin surface or epidermis. Examples of types of nevi include epidermal nevi and connective tissue nevi. In addition there...
By: Tarek Musslimani
Biochemistry is that branch of chemistry that applies to chemical reactions in cells of organisms as big as a cow and as small as a bacterium. These biochemical reactions that take place inside the cells are amazingly organized and accurate. This organization and accuracy stem...
How photosynthesis works
By: Tmari
The energy needed for survival is furnished to plants and animals through various chemical processes; the sunlight provides much of the energy these living organisms rely on for nourishment. Cells are also dependent upon energy; cells need energy to function properly. Plants need energy to...
The process of cellular fertilization: Eggs, sperm, and zygotes
By: A. C. Bowie
Cellular Fertilization in the Kingdom Animalia Cellular fertilization is the mechanism by which sexual reproduction yields a new generation of organism. Between kingdoms, the process varies far and wide encompassing everything from the simplicity of transferring genetic information between cells via a biological tube to...
By: Tarek Musslimani
The cellular biology of prokaryotes and eukaryotes differ than each other. This is partly due to the basic difference in structure between the two types of cells. Eukaryotic cells are exemplified by the human cells such as monocytes and lymphocytes. Prokaryotes are exemplified by bacterial...
By: Tarek Musslimani
The cell is the basic unit of the human body. It is also the most fundamental functional entity that sustains life in it. The cell has all the machinery within it for maintaining life and to survive. It does this by one of two ways:...
Overview of mammalian cells
By: Dr. Bryan Katz
This review will emphasize mammalian cells but also make reference to organelles found in plant cells. It is useful to view the cell as a functional unit consisting of distinct compartments separated by membranes. I. The plasma membrane separates the cell from its environment. It...

 

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