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1. Cellular level of Organization Dr Sarita Sharma Associate Professor Department of Pharmacology MMCP, MMDU

2. Cell Junctions: • Definition: It connects neighboring cells or cells to extracellular matrix. • Function : cellular adhesion and cellular communication. • Types: 1. Tight junction/ Occluding junction 2. Gap junction/ Communicating junction 3. Focal junction/ Hemidesmosomes 4. Adherence Junction/ Desmosome

11. CELL SURFACE RECEPTORS INTRACELLULAR/ NUCLEAR RECEPTORS