Biochemistry 3 - Amino Acids & Proteins
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A quiz for the SBI4U Biology Course Biochemistry Unit
- 1.The type of bond that forms between amino acids in order to eventually form a protein is called a....
- A.
Glycosidic linkage
- B.
Hydrogen bond
- C.
Ionic bond
- D.
Peptide bond
- E.
Hydrous bond
- 2.The formation of a protein or polypeptide relies on linking amino acids by way of....
- A.
Dehydration synthesis
- B.
Hydrolysis
- C.
Hydration
- D.
Polar covalent bonding
- 3.
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In the typical amino acid shown below, "R" represents:- A.
One atom of either Rubidium or Ruthenium
- B.
Another amino group or carboxyl group, depending on the amino acid
- C.
A variable group, different in each of the 20 amino acids
- D.
R is none of the above.
- 4.When amino acids are bonded into a single long chain, the resulting product is considered to be a protein's....
- A.
Primary Structure
- B.
Secondary Structure
- C.
Tertiary Structure
- D.
Quaternary Structure
- 5.A chain of amino acids, which is then twisted into an Alpha Helix, or 'folded' into a Beta Pleat, is considered a protein's....
- A.
Primary Structure
- B.
Secondary Structure
- C.
Tertiary Structure
- D.
Quaternary Structure
- 6.A chain of amino acids, that has been twisted or folded, sometimes folds or twists upon itself even more, due to attractions between amino acids. This is an example of....
- A.
Primary Structure
- B.
Secondary Structure
- C.
Tertiary Structure
- D.
Quaternary Structure
- 7.If a protein consists of several different polypeptides, each with a complex three-dimensional shape, held together by chemical bonds, it is considered to have a fairly complex ____________ structure.
- A.
Primary
- B.
Secondary
- C.
Tertiary
- D.
Quaternary
- 8.Which of the following is NOT true about Proteins?
- A.
They are insoluble in water due to their size & heavy molecular mass.
- B.
They are the building block of many mammalian tissues, such as muscle or bone.
- C.
They are stored as a nutrient, since they yield more energy than lipids or carbs.
- D.
They are useful in cells as both structural components & in chemical reactions.
- 9.Any protein that can act as a catalyst for certain cellular chemical reactions is considered to be a(n)....
- A.
Enzyme
- B.
Antigen
- C.
Antibody
- D.
Transport protein
- 10.Proteins embedded in the cellular membrane are often used for many functions. Which of these is NOT a function of membrane proteins?
- A.
Cell to cell adhesion
- B.
Receptor site for hormone
- C.
Transport of materials in/out of the cell
- D.
Cell identity or recognition
- E.
Cell nutrition
- 11.A protein produced by a white blood cell in response to some foreign element (bacterium, virus) is called a(n)....
- A.
Enzyme
- B.
Antigen
- C.
Antibody
- D.
Transport protein
- 12.Bacteria or viruses have proteins on their surface that our white blood cells recognize as foreign or 'non-self'. These proteins are called....
- A.
Enzymes
- B.
Antigens
- C.
Antibodies
- D.
Transport Proteins
- 13.The Sodium - Potassium pump is an excellent example of a(n)....
- A.
Enzyme
- B.
Antigen
- C.
Antibody
- D.
Transport Protein
- 14.
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The diagram below is showing a reaction between three amino acids. When the reaction is complete, the resulting bond and molecule will be, respectively:- A.
Pepsin, enzyme
- B.
Peptide, polypeptide
- C.
Amide, protein
- D.
Peptide, dipeptide
- 15.
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The functional group shown below is a(n):- A.
Carboxyl Group
- B.
Hydroxyl Group
- C.
Amino Group
- D.
Carbonyl Group
- E.
Sulfhydryl Group
- 16.
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The functional group shown below is a(n)...- A.
Carboxyl Group
- B.
Hydroxyl Group
- C.
Amino Group
- D.
Carbonyl Group
- E.
Sulfhydryl Group
- 17.
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Several amino acids have the functional group below. It is a(n)....- A.
Carboxyl Group
- B.
Hydroxyl Group
- C.
Amino Group
- D.
Carbonyl Group
- E.
Sulfhydryl Group
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