Question

choose the correct structures for each letter in the figure to describe how parts of a cell interact to export proteins. a: this organelle produces the mrna “message.” b: this structure uses the message to produce proteins. c: this organelle is lined with protein - producing structures. d: these membrane spheres transport materials inside the cell. e: this organelle packages proteins for export from the cell. proteins leave the cell by exocytosis.

Explanation:

A - Nucleus produces mRNA. B - Ribosomes use mRNA to produce proteins. C - Endoplasmic - reticulum (lined with ribosomes) is involved in protein production. D - Vesicles (membrane - spheres) transport materials. E - Golgi apparatus packages proteins for export from the cell, and then proteins leave the cell by exocytosis.

Answer:

A. Nucleus, B. Ribosome, C. Endoplasmic reticulum, D. Vesicle, E. Golgi apparatus