Does every cell make the same protein?

Answer 1

cells use DNA, RNA and ribosome to make proteins. The instructions on what proteins the cell makes, are coded for in the genes.

ribosome read the gene code and make a copy in the form of a single RNA strand.

this RNA is modified to form messenger RNA (mRNA)

this mRNA is shipped out of the nucleus to a ribosome.

the ribosomes translate the mRNA into amino acids, these amino acids are pared with nucleic acids until the entire string of mRNA is finished.

the ribosome releases the protein, and it begins to fold and take shape, the proteins final shape determines how it functions.

a bit hard to follow i know, but read it over a couple of times and it really is quite simple, hope this helps :)

Answer 2

Different cells have different functions, so to preform these functions, the proteins in the cell have to be different. (proteins help with a cell's function)

(Ex: you wouldn't have a brain cell/protein working as a skin cell, or the organism may undergo physical trauma or death, and [vise-versa] )

Answer 3

This is far too complicated to give a detailed answer to here, but a brief overview:

A portion of a DNA sequence is transcribed to an mRNA strand.

The mRNA strand is translated into a peptide sequence in the ribosome.

The peptide sequence either spontaneously or with the aid of helper proteins folds into the correct shape (and in the case of multistrand proteins, assembles with other strands into the finished protein).

Answer 4

No, different cells in the body have different functions and therefore produce different proteins. This is controlled by gene expression, where only certain genes are activated in each cell to produce specific proteins needed for that cell's function.

Answer 5

You take out water molecules, like if you had alanine and glycine you would take out one water molecule to join them together.

Answer 6

No. Some cells in a certain area may make the same protein, but there are a lot of different proteins to make, thus there are a lot of cells making different proteins.

Answer 7

Different proteins have different functions because they have different structures. The structure of a protein, determined by the sequence of amino acids, determines its function.