BMAT Biology Practice: Part 5

An advanced, interactive quiz on Advanced Synthesis & Application.

Problem 35: The Radioactive Trace

Hard
IntegrationCell BiologyLab TechniquesProteins

A researcher studies insulin secretion by incubating pancreatic cells in a medium with ³⁵S-labeled amino acids for a short 'pulse,' then transferring them to a non-radioactive 'chase' medium. In which order would radioactivity most likely appear in the following compartments: 1. Secretory vesicles, 2. Rough ER, 3. Golgi apparatus?

A

1 → 2 → 3

B

2 → 3 → 1

C

3 → 2 → 1

D

2 → 1 → 3