Which membranous organelle stores calcium and is a primary site of lipid metabolism?

Question

Quizplus · Accepted Answer

The smooth endoplasmic reticulum (SER) is the membranous organelle that stores calcium and is the primary site of lipid metabolism. The SER lacks ribosomes and has a smooth appearance in contrast to the rough endoplasmic reticulum (RER), which has ribosomes attached to its surface. The Golgi apparatus processes and packages proteins for secretion or delivery to other organelles, while the mitochondrion is involved in energy production and cellular respiration. The peroxisome is responsible for the breakdown of fatty acids and detoxification of harmful substances.

Which Membranous Organelle Stores Calcium and Is a Primary Site