In Biology, sophomores take previously gained skills into the laboratory. The focus is on cellular and molecular biology, microbiology, human systems, evolution, genetics, neuroscience, and biotechnology. Lab work includes experiments on enzymes, cellular respiration, osmosis, bacterial growth, and human sensation. Students carry out microscopic observations of plant and human cells, construct models to study cell functions of molecules, practice solving genetics problems, and discuss the connections of basic science to medical applications. At this grade level, some students are ready to conduct Science Fair project research and labs in the professional laboratories at nearby Woods Hole institutions. Others conduct projects of their own design in the Biology lab.