Proteins

Soy protein is the protein that is extracted from soybeans.

Proteins are made up of one or more peptides.

No, polysaccharides are not types of proteins. Polysaccharides are complex carbohydrates made up of multiple sugar molecules, while proteins are macromolecules made up of amino acids.

Rough endoplasmic reticulum

Pepsin is the "digestive juice" that digests proteins.

Here we are talking about the translation mechanism. The mRNA is composed for a secquence of "triplets" of bases, called codons, that are recognized by tRNAs during translation events. Each tRNA posesses an "anticodon" secquence of three bases that recognized the codon of the mRNA and momentarily form hydrogen bonds in order to allow that the amino acid that carries be coupled into the growing polypeptide chain.

Western blot is an analytical technique used in clinical and research labs to identify specific proteins in the sample. For the detection of proteins, antibodies are normally incubated on the blot membrane "overnight" (about 16 hour when you don't work in the evening to next day). This encourage the binding of antibody to bind to its antigen for the detection.

Most of the protein in the ER is contained in ribosomes which are attached to its surface.

They are known as prions and cause many diseases such as Mad Cow Disease and Creutzfelt-Jacob disease.

The two types of proteins in milk are ceseins and whey. Caseins are coagulable (meaning that they can be converted to a more solid form), and whey proteins are non-coagulable.