Proteins are what genes code for. They do much of the work of the cell, and as w
ID: 316201 • Letter: P
Question
Proteins are what genes code for. They do much of the work of the cell, and as we discussed, there are many kinds of proteins. Each organelle of the cell and the cytosol has proteins that do specific jobs. All proteins are made on ribosomes. If the location in which a protein functions is the cytosol, nucleus, mitochondria or peroxisome then that protein is made on a ribosome that is free in the cytosol. If the location in which a protein functions is the endomembrane system then the protein is made on a ribosome attached to the outside of the rough endoplasmic reticulum. As the protein is made it is forced through a pore so that it ends up inside the RER. For each enzyme listed or described below state the kind of ribosome on which it's made (cytosolic or RER). If it's made on a RER ribosome, state the final destination of the protein in the endomembrane system.Explanation / Answer
Protein
Ribosome Type
Location
Histone
Cytosolic
-
Steroid synthesizing enzymes
Cytosolic
Na K antiporter
RER
Plasma membrane
DNA Polymerase
Cytosolic
Ribosomal proteins
Cytosolic
Galactosyl transferase
Cytosolic
Protein
Ribosome Type
Location
Histone
Cytosolic
-
Steroid synthesizing enzymes
Cytosolic
Na K antiporter
RER
Plasma membrane
DNA Polymerase
Cytosolic
Ribosomal proteins
Cytosolic
Galactosyl transferase
Cytosolic
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