it takes approximately 8 minutes and 20 seconds for light produced by the sun to reach earth. therefore the sun is located much less than 1 light-year form earth about 1 light year from earth about 8.3 light-years from earth more than 160 light-years from earth

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

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?