Match the cell organelle to the organ or organ system in your body that does the same job. integumentary system (skin) circulatory system digestive system (think energy) brain musculoskeletal system 1. endomembrane system 2. mitochondria 3. cytoskeleton 4. plasma membrane 5. nucleus

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products