Imagine that you found a cell that releases many proteins into the bloodstream. What organelles

step 1 Right. So for this question, we have a nice little application. And what we are told is that we'

Imagine that you found a cell that releases many proteins...

Key Concepts

Rough Endoplasmic Reticulum

The rough endoplasmic reticulum (RER) is a key organelle in protein synthesis. It is studded with ribosomes on its cytosolic surface, which synthesize proteins destined for secretion or insertion into the cell membrane. In cells that secrete large amounts of proteins, the RER is especially active, ensuring that the initial stages of protein production occur efficiently.

Golgi Apparatus

The Golgi apparatus plays a critical role in modifying, sorting, and packaging proteins that are synthesized in the rough endoplasmic reticulum. It processes these proteins by adding carbohydrate groups or other modifications and then directs them into vesicles, which are later transported to the cell surface for secretion.

Secretory Vesicle Transport

Secretory vesicle transport is a fundamental component of the cell’s secretory pathway. After proteins are packaged in the Golgi apparatus, they are encapsulated within vesicles that ferry them to the plasma membrane. These vesicles then fuse with the membrane to release their protein contents into the extracellular space, such as the bloodstream.

Transcript

0:00 Right.

00:01 So for this question, we have a nice little application.

00:03 And what we are told is that we're to imagine a cell.

00:07 And we have a cell.

00:08 Let's just draw a normal cell.

00:10 And it is releasing lots of proteins.

00:13 So lots of proteins are being released from the cell.

00:16 To extra quick cellular fluid or whatever else.

00:19 So a high amount of these proteins.

00:22 Into the bloodstream, more specifically as the question outlines.

00:25 Either way, what organelles might be especially active in the cell if we are releasing more proteins from the cell into the bloodstream? so what we need to ask ourselves is, what makes proteins? that's sort of the first question.

00:40 What makes proteins? or then just not.

00:45 The second part, i wouldn't say just as important, would be what releases them? because if we have more proteins in the cell, something has to release them into the bloodstream.

00:57 What releases them? and these will essentially answer the question why we have more proteins in the bloodstream from this particular cell.

01:04 So what makes proteins? so here we're going to need to look at.

01:08 Two structures in particular and they kind of go hand in hand the first is going to be the ribosome and we can picture these in the cell as being let's say here we have the nucleus.

01:20 I'll just do this in blue nucleus have some chromosomes or genetic material whatever my have you also we have some ribosomes over here.

01:29 I'll do these in black to be consistent with the color of ribosomes that i use to write it these are just little picture as little small balls or dots or whatever these are primarily responsible for producing and making proteins...

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