Cell Vocabulary Cards Small parts of a cell that have a specific job organelles The organelle that makes proteins. ribosome The jelly-like fluid inside cells that surrounds organelles. cytoplasm The organelle that breaks down waste. lysosome The organelle responsible for getting and using energy mitochondria This organelle provides support to the cell. It acts as a protective barrier. cell membrane This organelle is responsible for all cell activities – especially reproduction. nucleus This organelle contains DNA. This is the outermost part of a plant cell. It makes the cell rigid and provides protection cell wall Photosynthesis takes place inside this organelle chloroplast This organelle is very large in plant cells and very small in animal cells. It stores water, food, and waste. vacuole Credit: Sarah Walker, Shannon Flory Shuksan Middle School