Question

6. Which of the following statement about the endoplasmic reticulum is correct? A. It is involved in Glycogenolysis B. It consists of a collection of unconnected vesicles C. It is continuous with outer mitochondrial membrane D. It contain enzymes for the breakdown of cellular organelles​

Answer 1

Answer:

Explanation:

Endoplasmic reticulum:

The cytoplasm of eukaryotic cells only contains the intricate network of tubular membranes known as the endoplasmic reticulum.

One type of endoplasmic reticulum has a surface covered in ribosomes, whereas the other type has a smooth surface. The smooth endoplasmic reticulum is the latter, whereas the rough endoplasmic reticulum is the former. These membranes finally unite with the nuclear membrane's outer layer in a series of continuous folds. Every other type of eukaryotic cell, excluding sperm and red blood cells, has an endoplasmic reticulum.

Rough Endoplasmic Reticulum:

• Because of the way it looks, the rough endoplasmic reticulum is given that name.
• The name refers to a collection of interconnected flattened sacs with several ribosomes on their exterior surface.
• It produces and secretes hormones, other chemicals, and proteins in the glands.
• In cells where protein synthesis takes place, rough ER is prevalent (such as hepatocytes)

Smooth endoplasmic reticulum:

• On the other side, ribosomes are absent from the smooth endoplasmic reticulum.
• The tubular shape of the smooth endoplasmic reticulum.
• It takes involved in the synthesis of phospholipids, which are the main lipids in cell membranes and are crucial for metabolism.
• The Golgi apparatus, in particular, receives the products of the rough ER via the smooth ER.

The correct option is it  consists of a collection of unconnected vesicles.

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Answer 2

Answer:

It consists of a collection of unconnected vesicles

Explanation:

• Endoplasmic reticulum (ER), a continuous membrane structure in biology, is vital for the synthesis, folding, modification, and transport of proteins. It forms a series of flattened sacs within the cytoplasm of eukaryotic cells.
• An endoplasmic reticulum can be found in all eukaryotic cells (ER). The ER typically makes up more than 50% of the cell's membranous composition in animal cells.
• The two types of ER, known as rough ER and smooth ER, can be distinguished by differences in specific physical and functional characteristics.
• Due to the ribosomes connected to its exterior (cytoplasmic) surface, rough ER is so named because of its rough look. Rough ER is located next to the cell nucleus, and the outer membrane of the nuclear envelope is continuous with its membrane.
• In contrast, smooth ER serves different purposes and is not connected to ribosomes. The synthesis of lipids, including as cholesterol and phospholipids, which are needed to create new cellular membranes, is carried out by the smooth ER.

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