Podcast
Questions and Answers
What is the main function of the rough endoplasmic reticulum (rER)?
What is the main function of the rough endoplasmic reticulum (rER)?
- Carbohydrate metabolism
- Lipid synthesis
- Synthesis and secretion of proteins (correct)
- Calcium storage
What gives the rough endoplasmic reticulum (rER) its rough or granular appearance?
What gives the rough endoplasmic reticulum (rER) its rough or granular appearance?
- Abundance of smooth vesicles
- High concentration of lipids
- Accumulation of carbohydrates
- Presence of ribosomes on its outer surface (correct)
What is the basic structure of the rough endoplasmic reticulum (rER) when observed with an electron microscope (EM)?
What is the basic structure of the rough endoplasmic reticulum (rER) when observed with an electron microscope (EM)?
- Smooth spherical structure
- Hexagonal crystalline formation
- Anastomosing network of tubules, vesicles, and flattened cisternae (correct)
- Long, branching filamentous extensions
What causes the basophilic appearance of the rough endoplasmic reticulum (rER) with light microscopy (LM)?
What causes the basophilic appearance of the rough endoplasmic reticulum (rER) with light microscopy (LM)?
Which type of ER is characterized by the presence of large number of ribosomes attached to its limiting membrane?
Which type of ER is characterized by the presence of large number of ribosomes attached to its limiting membrane?