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Ivan
2 years ago
13

You were able to radioactively tag and thereby trace an amino acid that is used to make insulin, a hormone that will be exported

out of the cell. The pathway of the tagged amino acid would be __________.
a) free ribosome → cytosol → vesicle → extracellular fluid
b) rough ER → Golgi complex → Golgi vesicle → extracellular fluid
c) rough ER → smooth ER → Golgi complex → Golgi vesicle → extracellular fluid
d) smooth ER → Golgi complex → Golgi vesicle → extracellular fluid
e) smooth ER → Golgi complex → lysosome → extracellular fluid
Biology
1 answer:
Mnenie [13.5K]2 years ago
5 0

Answer:

B) rough ER → Golgi complex → Golgi vesicle → extracellular fluid

Explanation:

  • Insulin is synhtesized by beta cells of pancereas (preproinsulin).
  • Insulin enters the rough endoplasmic reticulumn in its inactive form (proinsulin).
  • The rough endoplasmic reticulumn converts it to active form (insulin).
  • The rough endoplasmic reticulumn transfer the insulin to glogi comlpex
  • The Golgi complex secrete it in golgi vesicles to cytoplasm.
  • On the stimulation of beta cells insulin is secreted to extracellular fluid..

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