Which statement best describes the composition and function of proteins in organisms? a)long chains of hydrocarbons used for digestion and respirationb)sugars and starches that provide energy for metabolic processesc) fats and oils which are well suited for long term energy storaged)long chains of amino acids used for building, repair, and maintenance

You are given an electron micrograph of a bacterial cell. in the micrograph you can clearly see three thin layers of different densities surrounding the cell. based on the micrograph, you can infer that this cell is and would appear after application of the gram stain procedure. gram-negative / pink gram-positive / purple gram-positive / pink gram-negative / purple