🚀 Main Idea: Our cells have fancy doorbells (receptors) that ring and set off a series of actions inside the cell when specific visitors (like insulin) arrive.

• Kinase: It’s like a chef that sprinkles phosphate (a special seasoning) onto specific molecules. This sprinkling act is called phosphorylation.
• Tyrosine Kinase: This chef specializes! It only adds phosphate to a specific ingredient called tyrosine found in proteins.

• The insulin receptor (imagine it as a blue dolphin) lives in the cell membrane.
• The insulin (think of it as an orange fish) approaches the dolphin.
• The dolphin's tails (inside the cell) are tyrosine kinase chefs.