Picoplankton may account for up to 80% of all the photosynthetic activity in some parts of the open ocean. a. True
b. False

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

a

explanation: