The pancreases secretes insulin which is made up of chain of 51 amino acids. How is insulin able to enter the bloodstream despite its relatively large size? 1. The pancreas contains continuous capillatries. 2. The pancreas contains cell that are very good at exocytosic which creastes a larher concentration of isulin in the interstitial fluid that diffuses into the blood. 3. The pansrea contains fenestrated cappilaries. 4. Insullin is hydropholic so it can diffuse across cell membranes

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