Endoplasmatic reticulum

Post by **atomtengeralattjaro** » Tue May 06, 2008 8:48 pm

The endoplasmic reticulum or ER is an organelle found in all eukaryotic cells that is an interconnected network of tubules, vesicles and cisternae. The lacey membranes of the endoplasmic reticulum were first seen by Keith R. Porter, Albert Claude, and Ernest F. Fullam in 1945. These structures are responsible for several specialized functions: Protein translation, folding and transport of proteins to be used in the cell membrane (e.g., transmembrane receptors and other integral membrane proteins), or to be secreted (exocytosed) from the cell (e.g., digestive enzymes); sequestration of calcium; and production and storage of glycogen, steroids, and other macromolecules. The endoplasmic reticulum is part of the endomembrane system. The basic structure and composition of the ER membrane is similar to the plasma membrane.

JKL;!!!!! · Post by **JKL;!!!!!** » Tue May 06, 2008 10:09 pm

hobobuster · Post by **hobobuster** » Wed May 07, 2008 1:25 pm

*copies*

Meh · Post by **Meh** » Wed May 07, 2008 1:35 pm

Kellizaber · Post by **Kellizaber** » Wed May 07, 2008 3:45 pm

It's a twista! It's a twista! Muy bien, senor. That fish looks so sad all alone and facing down!

Post by **atomtengeralattjaro** » Wed May 07, 2008 4:17 pm

there is a other fish that is happy and facing upwards!
what is "Muy bien, senor"?

Kellizaber · Post by **Kellizaber** » Wed May 07, 2008 5:29 pm

Very good, sir!

I saw the happy fish but he's all mixed in with everyone else which is probably why he's happy! The other fish is all lonely!

Post by **atomtengeralattjaro** » Wed May 07, 2008 5:43 pm

that's probably because that one is a bacteria in the endoplasmatic reticulum.

Kellizaber · Post by **Kellizaber** » Wed May 07, 2008 5:50 pm

You're probably right. What's the yellow in the right corner? And why isn't there more green?!

hobobuster · Post by **hobobuster** » Wed May 07, 2008 5:53 pm

hmmm... all i see is black/grey/white...

oh! i do see the yellowish green thing

Post by **atomtengeralattjaro** » Wed May 07, 2008 5:59 pm

in the corner that's the end of the paper sheet.. the yellow thing is my table..
edit: oh and the lil green stuff is some notes written on the other side of the paper.

Kellizaber · Post by **Kellizaber** » Wed May 07, 2008 6:00 pm

Color blind!

It's like the sun is peaking in from the right.

Ahh, the shadow looks like a pencil line.

Post by **atomtengeralattjaro** » Wed May 07, 2008 8:09 pm

The basic structure and composition of the endoplasmic reticulum membrane is similar to the plasma membrane.

JKL;!!!!! · Post by **JKL;!!!!!** » Thu May 08, 2008 12:23 am

are you stating that the ER membrane has qualities of plasma?

Sun Oct 20, 2019 5:22 pm

I guess that's what I'm stating.

JKL;!!!!! · Post by **JKL;!!!!!** » Thu May 08, 2008 11:23 pm

but isn't ER an liquid/solid?

Post by **atomtengeralattjaro** » Fri May 09, 2008 9:04 am

How would I know?

(isn't plasma liquid+solid?)

.,.,.,., · Post by **.,.,.,.,** » Fri May 09, 2008 12:10 pm

JKL;!!!!! · Post by **JKL;!!!!!** » Sat May 10, 2008 3:41 am

plasma is ANOTHER ONE OF THE 4 BASIC ELEMENTS:
solid
liquid
gas
plasma
i think...

that's what this 12th grader said to me...

Sun Oct 20, 2019 5:22 pm

it is true.
but it's like a jelly thing that is somehow between liquid and solid, i think.
(I'm a 13th grader

)

but I've never really studied these things, just had fun on the lessons so I'm never sure of physics..