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WorksheetsResearch Protein Structure
Total questions: 15
Worksheet time: 3mins
A specific class of proteins that regulate metabolism are known as
Carbohydrates
Monomers
Catalysts
Cholesterol
Amino acids share a common structure. The part of the amino acid responsible for the functionality of the protein is the
Alpha Carbon
Amino Group
Carboxyl Group
Side Chain (R)
Hydrogen Atom
An example of a structural protein is
Insulin
Actin
Myosin
Keratin
Hydrophobic or Nonpolar Side Chains tend to
form barriers along the outside of the protein
fold inward during folding when placed in aqueous environments
be involved in forming active sites
The primary structure of a protein is a ____ linked together by ____ bonds.
Polypeptide, Peptide
Dipeptide, Hydrogen
Polygon, Covalent
Peptidoglycan, Ionic
The two types of secondary structures are
Alpha Pleated Sheet, Beta Helix
Alpha Helix, Beta Pleated Sheet
Polypeptide, Globular Protein
Fibrous, Globular
Tertiary protein structures are mainly stabilized by
Hydrogen Bonds
DiSulfide Bridges
Covalent Bonds
All of the Above
There are a total of
12 Amino Acids
64 Amino Acids
24 Amino Acids
20 Amino Acids
The bonding of two amino acid molecules to form a larger molecule requires which of the following?
Addition of a water molecule
Removal of a water molecule
Addition of a glycosidic bond
Formation of a hydrogen bond
Upon chemical analysis, a particular polypeptide was found to contain 100 amino acids. How many peptide bonds are present in this protein?
100
99
101
50
Which protein structures are stabilized and functional? (Check all those that apply)
Primary
Secondary
Tertiary
Quaternary
The tertiary structure of a protein is the
bonding together of several polypeptide chains by weak bonds.
order in which amino acids are joined in a polypeptide chain.
unique three-dimensional shape of the fully folded polypeptide.
organization of a polypeptide chain into an α helix or β pleated sheet.
Extension Question: Misfolding of polypeptides is a serious problem in cells. Which of the following diseases are associated with an accumulation of misfolded polypeptides?
Cancer
Eczema
Diabetes
Alzheimers
What is the term used for a protein molecule that assists in the proper folding of other proteins?
Denaturing Protein
Chaperonin
Renaturing Protein
Enzyme Protein
The term used to describe any case in which a protein's function at one site is affected by the binding of a regulatory molecule to a separate site. This may result in inhibition or stimulation of activity.
Allosteric Regulation
Chaperonin
Feedback Inhibition only
Cooperativity only
