Cellular and Molecular Biology
Understanding life and cellular processes at the molecular level is the goal of Cell and Molecular Biology, an interdisciplinary field that draws from chemistry, structure, and biology. Cell fate and differentiation, cell growth regulation, cell adhesion, movement, and intracellular trafficking are central concerns in molecular cell biology. Complicated topics under Cellular and Molecular Biology include signaling's role in cell proliferation, cell death, transcriptional regulation, mitosis, cell differentiation, organogenesis, cell adhesion, motility, and chemotaxis. Molecules are the masters of a cell's activities and growth, so it makes sense that molecular biology would investigate all aspects of cells, from their structure to their chemical processes. Energy is generated by the biochemical pathways, "messages" from the outside world are processed, new proteins are made, and the DNA genome is replicated. Understanding the behavior of cells requires knowledge at both the molecular and systems biology levels.