Biology Q: Structure & Role of 4 Cell Parts in Protein Production

[Karma]

Hey, I am in grade 11 biology and i have this question to do for my homework. I'm having a little trouble answering the question because i think my teachers wording was pretty awful.. anyways here it is.

Some cells are described as protein factories. Describe the organic structure of a globular protein and explain the role of 4 cell parts that are involved in the processes.

The part that i am stuck on is what the four cell parts are? I wrote down the cytoplasm, golgi complex, Rough E.R, and the Ribosome. Is that correct? and if it is which process is she talking about?

 

[Moonbear]

I think you are right here. If you wrote the question verbatim, you're right, it's poorly worded. I have to assume from the context that the "processes" mean protein synthesis and packaging, since the question starts out by describing cells as protein factories.

 

[ravenprp]

Hi there! Don't worry, the wording can be a bit confusing sometimes. Yes, the four cell parts you mentioned are correct. Let me break down the structure and role of each of these cell parts in protein production for you.

1. Cytoplasm: This is the gel-like substance that fills the cell and contains all the necessary components for protein production. Within the cytoplasm, there are specialized structures called ribosomes where protein synthesis takes place.

2. Golgi complex: This is a series of flattened, stacked membranes that function to modify, sort, and package proteins for transport to their final destination. Once proteins are synthesized in the ribosomes, they are transported to the Golgi complex for further processing.

3. Rough endoplasmic reticulum (ER): This is a network of membranes studded with ribosomes. As the name suggests, the rough ER is involved in protein production. Ribosomes attached to the rough ER synthesize proteins that are destined for secretion or for use within the cell.

4. Ribosomes: These are small organelles that are responsible for protein synthesis. They are made up of two subunits, one large and one small, and are found either free-floating in the cytoplasm or attached to the rough ER.

So, to summarize, the cytoplasm provides the necessary environment for protein production, the Golgi complex modifies and packages proteins, the rough ER is involved in protein synthesis, and ribosomes are the sites where protein synthesis takes place. I hope this helps clarify the roles of these four cell parts in protein production. Good luck with your homework!