(1) The document discusses several types of organelles and their functions, including mitochondria which generates ATP for energy, lysosomes which break down waste, the endoplasmic reticulum which synthesizes lipids and proteins, and ribosomes which synthesize proteins. (2) It also discusses the cell membrane, which forms the boundary of the cell and regulates what enters and exits, as well as cilia and flagella, which help move substances on the cell surface. (3) The Golgi apparatus packages proteins and lipids into vesicles for transport within and outside the cell.