The medical assistant should check the reception room first thing in the morning and before closing to remove garbage or to retrieve any forgotten items

All cells have an outer covering called the ________, which allows some substances passage into or out of the cell while denying passage to other substances

a. organelle b. nucleus c. DNA d. cell membrane

Trace elements in biological fluids can be measured using which of the following instrumentation techniques?

A. Reflectometry B. Enzyme immunoassay C. Atomic absorption spectrometry D. Osmometry