Proteins are important molecules that are synthesized,

transported, and used in cells in a multitude of ways. The rough
endoplasmic reticulum and Golgi apparatus have parts to play
in this system. These functions are __________, respectively.
Identify the answer choice that correctly fills in the blank in the
above passage.
(1 point)
protein making and protein packaging
protein packaging and lipid production
DNA making and DNA packaging
DNA packaging and DNA storin

protein making and protein packaging

The correct answer is:

protein making and protein packaging

To fill in the blank correctly, we need to understand the functions of the rough endoplasmic reticulum and Golgi apparatus in protein synthesis and processing.

1. Rough endoplasmic reticulum: It is responsible for protein synthesis, specifically for the production of membrane-bound and secreted proteins. The rough endoplasmic reticulum is studded with ribosomes, which are the protein-making factories of the cell, hence assisting in protein synthesis.

2. Golgi apparatus: It is involved in protein processing and packaging. After the synthesis of proteins, they are transported from the rough endoplasmic reticulum to the Golgi apparatus. The Golgi apparatus modifies, sorts, and packages proteins into vesicles for transport to their final destinations within the cell (such as secretion outside the cell or to specific organelles).

Based on this information, the correct answer choice that fills in the blank is "protein making and protein packaging." So the functions respectively of the rough endoplasmic reticulum and Golgi apparatus are protein making and protein packaging.