Black Ginger (Kaempferia parviflora): The Energetic Extract in EndoFlo Differences between a Plant Cell and an Animal Cell: Plant Cells possess a rigid, non living Cell Wall (outermost layer) outside the plasma membrane. Animal Cells lack a cell wall; the plasma membrane 20 Big Indoor Plants That Make a Statement Bob Vila Enhancing Soil Health and Plant Growth with Chlorella Biostimulants B.C. Centre for Agritech Innovation Simon Fraser University