Plasma membrane is the covering of the cell that separates the contents of the cell from its external environment. It is a living part of the cell and is present in cells of plants, animals and microorganisms. It is very thin, delicate, elastic and selectively permeable membrane. It is composed of lipid and protein
Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules