Objective: To find and learn about the Endoplasmic Reticulum!
Whew! It’s been a long journey, and now I have to search for the endoplasmic reticulum! And if you’ve already read about the nucleus and ribosome, here’s a fun fact: The endoplasmic reticulum takes up more than half of the total membrane in cells, is continuous with the nuclear envelope, and it has bound ribosomes in it. 3 organelles in one? Talk about connections in life! And if you’re note a bio geek like me, sorry, but this is awesome. Want to know why? Keep on reading!<Scroll to bottom for correct location…> The Endoplasmic Reticulum:
In general, the ER is a wide network of membranes that use membranous tubules and cisternae (sacs). Like the nuclear envelope, the ER also keeps the internal environment (ER lumen/cisternal space) and the cytoplasm separate. There are two types of ER, based on the presence of ribosomes: Smooth ER and Rough ER.
General Endoplasmic Reticulum Video:
To further explore the smooth and rough ER, click on the tabs that appear when you hover your mouse over the page “endoplasmic reticulum”. You will then be guided to a more extensive explanation of these membranes!