👉 Eukaryotes are multicellular organisms that have a nucleus, possess a cell wall composed mainly of cellulose and lignin, and are characterized by having two layers of membrane-bound organelles. These include chloroplasts for photosynthesis, mitochondria for cellular respiration, and plastids for protein synthesis. Eukaryotic cells also contain a cytoplasm with numerous organelles and secretory pathways, allowing them to engulf and secrete substances throughout their body.
