Which branch of study focuses on the internal structure of plants?

The focus of the study on the internal structure of plants is encompassed by the field of plant anatomy. This discipline investigates the cellular and tissue organization of plants, examining aspects such as cell types, tissue systems (like vascular, ground, and dermal tissues), and the arrangement of these tissues within various organs.

Understanding plant anatomy is crucial for recognizing how different structures contribute to plant function, growth, and response to environmental conditions. This knowledge provides insights into how plants develop, the pathways for nutrient movement, and the differentiation of various plant parts necessary for survival.

While related fields such as plant physiology explore how plants function on a biochemical and physiological level, and plant morphology looks at the external form and structure of plants, the specific study of the internal architecture is distinctively categorized under plant anatomy. Plant ecology studies the relationships between plants and their environment, which, while important, does not delve into structural aspects at the cellular or tissue level. Thus, the correct area of study for understanding the internal makeup of plants is indeed plant anatomy.