Which term is the study of cells?

• A. Cytolemma
• B. Cytology
• C. Dementia
• D. Dental

Answer: (B)

The study of cells is cytology, a field that examines cell structure, function, and organization—often using microscopes to look at how cells are built and how they behave. The word comes from cyto-, meaning cell, and -logy, meaning the study of. Cytology covers things like cell shape, the appearance of organelles, how cells divide, and how changes in cells relate to disease. The other terms don’t fit: cytolemma (or cytolemma) refers to the cell membrane, not the study of cells; dementia is a brain disorder; and dental relates to teeth. So cytology is the correct term.