Membrane Receptors

Mechanism of Action of Lipid Soluble Hormones | BIOLOGY | NEET | Concept of the Day | Pushpendu Sir

3D animation of action potential conduction through many myelinated neurons, pulse highlighted as it moves through dendrite, soma and axon.

Muscle contraction: Sliding filament model animation for A level biology on Make a GIF

Animation: Enzymes: Steps in a Reaction

Toll-Like Receptors (TLR)

T cell immunity: What is it and how does it help to protect us from COVID-19? | Imperial News | Imperial College London

Saksham Bhatia on Instagram: "When macrophages detect pathogens (like bacteria or viruses), they don’t just engulf and destroy them — they also act as alarm systems for the immune system. 🧩 How it works: 1. Detection: 🕵️ Macrophages recognize the pathogen using receptors (like Toll-like receptors). 2. Activation: 🚀 They become activated and start releasing cytokines — small signaling proteins such as interleukins (IL-1, IL-6) and tumor necrosis factor-alpha (TNF-α). 3. Summoning reinforcement