Explain what is meant by the compensation print in photosynthesis.

The (light) compensation point is the light intensity on the light curve where the rate of photosynthesis exactly matches the rate of cellular respiration. ... Therefore, the partial pressure of CO2 at the compensation point, also known as gamma, is a function of irradiation.

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