Question

structures of the cell quick check 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) ○ dna packaging and dna storing ○ protein packaging and lipid production ○ dna making and dna packaging ○ protein making and protein packaging

Explanation:

To solve this, we recall the functions of the rough endoplasmic reticulum (rough ER) and the Golgi apparatus. The rough ER has ribosomes on its surface, which are involved in protein synthesis (so it's for protein making). The Golgi apparatus modifies, sorts, and packages proteins (so it's for protein packaging). Now we analyze the options:

• Option 1: DNA packaging/storing is not related to rough ER or Golgi (they deal with proteins, not DNA storage/packaging), so eliminate.
• Option 2: Lipid production is done by smooth ER, not Golgi, and rough ER doesn't do protein packaging (it makes proteins), so eliminate.
• Option 3: DNA making and packaging are not functions of rough ER or Golgi (they are about proteins), so eliminate.
• Option 4: Rough ER is for protein making (due to ribosomes), Golgi is for protein packaging (modifying and packaging proteins for transport), so this matches.

Answer:

D. protein making and protein packaging (assuming the last option is labeled D; if the original options had labels like A - D with the last one as D, else adjust the label. Since the last option is "protein making and protein packaging", that's the correct one.)