What are structures that support and give shape to plant cells

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

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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