Cell structure and function

This document summarizes key concepts about cell structure and function. It explains that all living things are made of cells, which are the basic unit of life, according to the cell theory. It describes the structures of prokaryotic and eukaryotic cells and explains their differences. Specifically, eukaryotic cells have a nucleus that houses genetic material, while in prokaryotes the DNA is not enclosed in a nucleus. The document also outlines various cell organelles such as the cytoplasm, mitochondria, chloroplasts, and cell membrane, and their functions in transport, photosynthesis, and maintaining homeostasis.