The six fundmental elements are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
A signal reaches a cell mostly in the form of a signalling molecule binding to a receptor on the cell surface. This binding activates a chain of events that amplifies the signal and transfers it inside the cell. Protein kinases phosphorylate proteins and cause their activation or deactivation, or in general modify their activity. When a signalling molecule binds to a receptor, a cascade is activated and the second messengers, such as cAMP, are synthesized. cAMP molecules activate the protein kinases, which phosphorylate specific proteins and activate them.
They wiil eat away at the stomic acid that is from unstrated fats and soon will be energy
The nucleus contains the cells DNA(genetic material) which is basically the recipe for making proteins. mRNA is first transcribed off of DNA and then in translated(by ribosomes) to polypeptides(proteins).
Artificial selection, also selective breeding occurs when humans breed individuals that have specific characteristics that they want to manipulate.
