Biochemistry 10th Edition
By Reginald Garrett and Charles Grisham
Reginald Garrett and Charles
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,MULTIPLE CHOICES
Which of the following is not the four main elements of proteins?
a. hydrogen
b. carbon
c. nitrogen
d. calcium
e.oxygen .......Correct ✓✓ CALCIUM
Hemoglobin which carries oxygen in RBC is an example of what type of protein?
a. defensive
b. structural
c. catalyst
d. enzymes
e. transport .......Correct ✓✓ TRANSPORTER
Which of the following is incorrectly matched?
I. ALBUMIN:TRANSPORT PROTEIN
II. MYOSIN: CONTRACTTILE PROTEIN
III. HORMONE: CATALYTIC PROTEIN
IV. ENZYME:MESSENGER PROTEIN
V. KERATIN:: STORAGE PROTEIN
a. I,II
B. II,III,IV
C. II, III, V
D. III,IV,VE. I,III,IV,V .......Correct ✓✓ III. HORMONE: CATALYTIC PROTEIN
IV. ENZYME:MESSENGER PROTEIN
V. KERATIN:: STORAGE PROTEIN
Peptide bond is a
a .covalent bond
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,b. ionic bond
c. metallic bond
d. hydrogen bond .......Correct ✓✓ COVALENT BOND
Dipeptide has
a. 2 amino acid and 1 peptide bond
b. 2 amino acid and 2 peptide bonds
c. 2 amino acid and 3 peptide bonds
d. 2 amino acid and 4 peptide bonds .......Correct ✓✓ 2 amino acid and 1 peptide bond
Which of the following is not classified form of conjugated proteins?
a. lipoproteins
b. glycoproteins
c. metalloproteins
d. complete proteins .......Correct ✓✓ COMPLETE PROTEINS
What is the classification of keratin?
a. catalyst
b. protection
c. structural
d. transport
e. chemical messenger .......Correct ✓✓ STRUCTURAL
The following are globulins except:
a. edestine
b. legumin
c .myosinogen
d. hordein .......Correct ✓✓ HORDEIN
The following are simple proteins except:
a. histones
b. protamins
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, c. proteans
d. albumin .......Correct ✓✓ PROTEANS
It is a combination of histones and protamines with nucleic acids
a. nucleoproteins
b. glycoproteins
c. phospoproteins
d. chromoproteins .......Correct ✓✓ NUCLEOPROTIENS
Which of the following bonds are not involved in tertiary structure?
a. hydrophobic interactions
b. hydrogen bonds
c. peptide bonds
d. ionic bonds .......Correct ✓✓ PEPTIDE BONDS
Unfolding of native proteins
a. oxidation
b. reduction
c. renaturation
d. denaturation .......Correct ✓✓ DENATURATION
The following are factors affecting denaturation of proteins except:
a. ph change
b. organic solvents
c. charge
d. heat
e. alcohol .......Correct ✓✓ CHARGE
The primary structure of proteins represents
a. linear structure of amino acids joined by peptide bond
b. three dimensional structure of protein
c. helical structure of proteins
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