American beaches are often contaminated by bacteria
carried in raw sewage,
animal waste, and storm
water runoff.
Identify if this is a short or
long term environmental
issue. List the
impact on
humans as
well as the
environment.

surface modification is a versatile tool and has been widely used in material science and engineering that has significantly facilitated the study and characterization of complex materials. at  matexcel, experienced experts in surface science can offer tailored efforts to meet the specific needs from our clients.

is this for the e2020 class

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