Mitosis is a process of cell division which results in the production of two daughter cells from a single parent cell. The daughter cells are identical to one another and to the original parent cell. In a typical animal cell, mitosis can be divided into four principals stages: Prophase: The chromatin, diffuse in interphase, condenses [...]
Archive for May, 2011
Human transport system consist of : Heart, blood vessels and blood which transport: gases such as O2 and CO2 Waste products such as CO2 and Urea Functions of circulatory system are : Transport O2 and nutrients to cells Transport waste products away from cells Protect body from infections Erythrocytes (RBC): Biconwave disc which can move quickly [...]
Cell Cycle The cell cycle is an ordered set of events, culminating in cell growth and division into two daughter cells. Non-dividing cells not considered to be in the cell cycle. The stages are G1-S-G2-M. 1. The G1 stage stands for “GAP 1″. 2. The S stage stands for “Synthesis”. This is the stage when [...]
[Mechanism of enzyme action] Introduction – Enzyme Characteristics: The basic mechanism by which enzymes catalyze chemical reactions begins with the binding of the substrate (or substrates) to the active site on the enzyme. The active site is the specific region of the enzyme which combines with the substrate. The binding of the substrate to the [...]
