Why plasma cells contain a large quantity of rough endoplasmic reticulum?

Cells that specialize in protein secretion contain large amounts of rough endoplasmic reticulum. Plasma cells, white blood cells that secrete immune proteins called antibodies, are so crowded with rough endoplasmic reticulum it is difficult to distinguish other organelles within the cytoplasm.

Why do white blood cells have many rough endoplasmic reticulum?

The white blood cell has a rough endoplasmic reticulum because it needs to transport proteins.

What is the purpose of the rough endoplasmic reticulum and where is it located in a cell?

rough endoplasmic reticulum (RER), series of connected flattened sacs, part of a continuous membrane organelle within the cytoplasm of eukaryotic cells, that plays a central role in the synthesis of proteins.

Which organelle is found in large numbers in cells of secretory gland?

Dictyosomes are small Golgi complexes scattered throughout the cytoplasm present in the invertebrates and plant cells. It is specially extensive in the secretory cells.

Why are some ribosomes attached to the endoplasmic reticulum?

Those floating ribosomes make proteins that will be used inside of the cell. Other ribosomes are found on the endoplasmic reticulum. Endoplasmic reticulum with attached ribosomes is called rough ER. The attached ribosomes make proteins that will be used inside the cell and proteins made for export out of the cell.

Where can ribosomes be found in the cell?

Ribosomes are mainly found bound to the endoplasmic reticulum and the nuclear envelope, as well as freely scattered throughout the cytoplasm, depending upon whether the cell is plant, animal, or bacteria.

Why is the rough ER important?

The function of the rough ER is to provide a place so ribosomes can produce proteins, and proteins are one of the most important things in a cell. Rough ER is the organelle that reads the DNA instructions to make the proteins. Also, the rough ER is involved in the transportation of proteins to the Golgi apparatus.

Why is the Golgi complex near the rough ER?

The Golgi apparatus receives proteins and lipids (fats) from the rough endoplasmic reticulum. It modifies some of them and sorts, concentrates and packs them into sealed droplets called vesicles.

Which organelle is responsible for intracellular digestion?

Lysosomes
Lysosomes are membrane-enclosed acidic organelles typical of eukaryotic cells and are responsible for the intracellular digestion and degradation of a multitude of biomolecules such as proteins, lipids and nucleic acids (Schröder, Wrocklage, Hasilik, & Saftig, 2010).