Which study is concerned with how plants function?

The study that focuses on how plants function is Plant Physiology. This branch of plant science examines the various processes that occur within plants, including photosynthesis, respiration, nutrient uptake, and growth regulation. It delves into the mechanisms that allow plants to thrive, adapt, and respond to their environments. Understanding plant physiology is crucial for applications in agriculture, horticulture, and ecology, as it provides insights into plant health and productivity, addressing issues such as drought resistance and nutrient management.

In contrast, the other fields mentioned have different focuses. Plant Taxonomy is primarily concerned with the classification and naming of plants, and how they relate to one another based on their characteristics. Plant Systemics involves the evolutionary relationships among plant species, emphasizing phylogenetics and the development of plant lineages over time. Plant Genetics studies the hereditary information in plants, including gene expression and genetic variation, rather than the functional processes themselves. Understanding these distinctions helps clarify why Plant Physiology is the correct focus for examining plant functions.