Metabolism encompasses the many reactions that take place in cells. to build tissue, produce energy, break down compounds, and do other cellular work. Anabolism refers to reactions that build compounds, such as protein or glycogen. Ca. -. tabolism is the breakdown of compounds to yield energy.
The one experiment that led to the changes to the original cell theory was the experiment that established the existence of single celled organisms and microbes. 1  Comments. 2  Report.
Changes in a cell's membrane potential are classified as either graded or action potentials. In graded potentials, the amplitude of the change is proportional to the magnitude of the input. In action potentials, the amplitude of the change is independent of input (all-or-none). V m changes can be due to either the opening or the closing of ion channels.