Why is DNA considered a biomolecule? It is made of nucleic acids.
It directs cell reproduction.
It makes up living tissue.
It is composed of atoms.

Sterilization of surgical instruments is a process that renders the items free of: a. spores. b. blood. c. oil d. dirt

Feedback mechanisms regulate the rate of enzyme activity, effectively "turning off' an enzyme in a reversible way until more product is needed. which of the following would be most effective as a feedback mechanism? a. reduced concentration of product b. increased concentration of substrate c. a change in ph d. temporary binding of a non-substrate molecule in the active site

The electrical charge needed for nerve cell firing" is the result of ion exchange in and around the cell. a. true b. false