Biological Proteins | Biology | Quiz

Proteins are polymers of _____.

amino acids

disulfide bridges

glucose

peptide bonds
A bond between amino acids is called a(n) _____ bond.

acid

hydrogen

ionic

peptide
Disulfide bridges in proteins help hold them together.

true

false
To separate individual amino acids in a protein, scientists can:

Add a basic solution (pH greater than 7) to break the peptide bonds.

Add an acidic solution (pH less than 7) to break the peptide bonds.

Pass X-rays through the various proteins to break the peptide bonds.

Use electrophoresis to break the peptide bonds.
What research techniques did Frederick Sanger use to identify the proteins and amino acids in insulin?

Electrophoresis and alpha-sheets

Chromatography and alpha-sheets

Electrophoresis and chromatography

None of the above
An amino acid that is water soluble is called _____.

a beta-sheet

an alpha helix

hydrophobic

hydrophilic
All proteins have a Quaternary structure.

false

true
The human body contains an estimated _____ proteins that form based on the way _____ amino acids can combine.

20; 100,000

100,000; 20

100; 20

100,000; 70