Question

15 more questions on cellular anatomy : question 5 : number 12 is pointing to ... the rough endoplasmic reticulum the smooth endoplasmic reticulum the golgi complex

Explanation:

To determine what number 12 points to, we analyze the options:

• The rough endoplasmic reticulum (RER) has ribosomes attached (giving it a "rough" appearance) and is involved in protein synthesis. In typical eukaryotic cell diagrams, the RER is often depicted with ribosomes (small dots) on its surface.
• The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, detoxification, etc., and has a smooth appearance.
• The Golgi complex is a stack of flattened membranes (cisternae) involved in processing and packaging proteins/lipids.

In the given cell diagram, number 12 is associated with a structure that has ribosomes (consistent with RER). So we identify the correct option.

Answer:

the rough endoplasmic reticulum