steroid hormones

The endoplasmic reticulum (ER) is a vital organelle in eukaryotic cells, playing a central role in protein and lipid synthesis, detoxification, and cellular homeostasis. This article examines the ER through a detailed diagram, showcasing its two distinct forms—rough and smooth ER—and their unique functions. Sourced from mouse tissue, the images provide a microscopic view of the ER's intricate structure, with magnifications up to 110,510x, offering a deeper understanding of its significance in cellular biology.

Lipids are a diverse group of biomolecules critical for cell structure, signaling, and metabolic regulation, with phospholipids, steroids, and prostaglandins playing distinct roles in the body. This image provides a detailed visual representation of these lipids, showcasing the structure of phosphatidylcholine (a phospholipid), cholesterol (a steroid), and prostaglandins like PGF2α and PGE2. Exploring these structures offers a deeper understanding of their functions in physiological processes and health.