Practice FRQ 2. In humans, pancreatic cells synthesize the protein insulin in the endoplasmic reticulum (ER). Patients
diagnosed with type 1 diabetes have immune systems that mistakenly attack their pancreatic cells.
Therefore, these patients cannot produce the hormone insulin and have to take medications to introduce
insulin into their bodies. (a) Describe how insulin would be produced in a nomal functioning (non-type 1
diabetes) pancreatic cell.

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any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.