Nursing Entrance Exam (NEX) Practice Exam 2025 - Free NEX Practice Questions and Study Guide

The primary function of electron microscopy in plant study is to study cell organelles in detail. This advanced imaging technique allows researchers to observe the intricate structures within plant cells at a much higher resolution than light microscopy can provide. By utilizing electron beams instead of light, electron microscopy captures fine details of organelles such as chloroplasts, mitochondria, and the cell wall, which are vital for understanding plant physiology, cellular processes, and structural anatomy.

This capability is essential for scientists who aim to investigate various cellular functions, such as photosynthesis in chloroplasts or energy production in mitochondria. The detailed imaging provided by electron microscopy thus serves as a critical tool in both basic and applied plant sciences, where understanding the structure-function relationship at the cellular level is crucial.

Other options, like analyzing soil nutrients or detecting water absorption, focus on physiological or environmental aspects, which are outside the scope of what electron microscopy aims to explore directly within plant cells. Examining root growth can involve various imaging and observation techniques but does not provide the detailed structural insights that electron microscopy offers for understanding cellular organelles.