which sequence correctly traces the path of a protein in the cell?

Answer 1

The first step is to make the protein. This is done by Translation from mRNA to protein via ribosomes. The ribosomes make the protein in 2 places, either bound to the Endoplasmic Reticulum or unbound and floating around in the cells.

Some proteins made by unbound ribosomes will ultimately become ribosomes themselves or become microtubules for cell structure. Some proteins made from bound ribosomes will become cell signal proteins called lipid proteins.

The proteins from bound ribosomes go through a very elaborate process. First the polypeptides are transported from the ER to the Golgi Apparatus where the proteins are packed and shipped off to its final destination. Most of these proteins will become part of the Cell Membrane for helping with regulation of substances into and out of the cell.

So the total process to make a single polypeptide (protein) is:
1) Transcription of DNA to mRNA
2) Transportation of mRNA from nucleus to cytosol.
3) Translation of mRNA to polypeptide via ribosomes (either bound or unbound).
4) Transportation of the protein to its final destination via small vacuoles.

Answer 2

1. Proteins to be exported from a cell are made on the ribosomes of the rough e.r.
2. The proteins move into the e.r. where they may be processed and transported to an area that is near a Golgi apparatus.
3. The proteins are packaged in a vesicle made by pinching off a bubble of membrane from the e.r.
4. The vesicle travels to a Golgi apparatus where the vesicle merges with the membrane of the Golgi apparatus and the proteins go into the interior of the G.A.
5. The Golgi apparatus processes and sorts the protein further, finally pinching off a bubble of its own membrane with the protein inside. This bubble is a vesicle.
6. The vesicle may be used inside the cell as in the case of lysosomes. Or the vesicle may carry the protein to the plasma membrane and merge with the plasma membrane to export the protein.

Answer 3

DNA-->RNA-->Protein

Answer 4

a

Answer 5

I can't get your question. Do you mean the sequences of central dogma DNA<->RNA->Protein.
If not so please explain your question.