Which system interactions are dependent on the plants ability to respond to the direction of light

it’s option 4

Explanation: photosynthesis and food transport

answer; ///i believe the answer your looking for is (ribosomes);

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