Why is Life Cellular

This is a useful note I took in build:

Living intimacys must(prenominal) maintain a high level of nonionic activity. Lets work backwards from the cells point of view:

*The ultimate thing a cell must do is to produce copies of itself. any cells are mortal. Cell lines that do not reproduce volition go extinct; therefore, logic every(prenominal)y, all existent cell lines must reproduce (simply because they are NOT extinct IF they are existing!).

*To reproduce, a cell must be equal to(p) to pass off reading to its daughter cells, so that they know what it knew. This information is passed in the form of genes made of DNA.

*To reproduce, a cell must withal be able to grow in an postly manner by adding more to its own tissues. If cells could not grow, each genesis of cells would be smaller than the last, until cells became too small to do all the necessary functions.

*To grow, a cell must be able to synthesize the cleanse complex molecules, such as proteins, lipids, DNA, carbohydrates, and so forth in the correct amounts, in the correct places, and at the correct times. Most of the synthesis in cells is directed by specialised proteins called enzymes, which in turn are synthesized under the direction of information in the genes.

*To synthesize new molecules, a cell must have the chemical raw materials in the correct forms that tolerate be recognized and used by its enzymes.



Sometimes, a cell must reprocess raw materials into the forms needed for some of its synthesis.

*To suffer raw materials, a cell must have slipway to acquire matter from its surroundings, i.e. a means of nutrition. It must selectively take the things it needs from a more or slight chaotic and random assortment of substances in its environment.

*Since the environment is neer going...

Very imformative notes..will also be adding to my notes, good collective of information in the correct order..

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