Which field is the study of cells?

Which field is the study of cells?

• A. Histology
• B. Anatomy
• C. Physiology
• D. Cytology

Answer: (D)

Cytology is the field that studies cells. It focuses on the cell itself—their structure, components like the nucleus and organelles, and how cells carry out their life processes, often using microscopes to observe them. Histology, by contrast, looks at tissues—the organized groups of cells working together. Anatomy covers the body's structure at larger, often visible scales, and physiology studies how those structures function. Because cytology zeroes in on cells themselves, it’s the best fit for this question.

Cytology is the field that studies cells. It focuses on the cell itself—their structure, components like the nucleus and organelles, and how cells carry out their life processes, often using microscopes to observe them. Histology, by contrast, looks at tissues—the organized groups of cells working together. Anatomy covers the body's structure at larger, often visible scales, and physiology studies how those structures function. Because cytology zeroes in on cells themselves, it’s the best fit for this question.