Quick Biochemistry - Proteins And Protein Metabolism (Section 4)

1
Which of the following is a basic amino acid?
Answer
(A)
Lysine
2
What is the approximate daily caloric need for a healthy adult woman?
Answer
(B)
2100
3
Roughly what percentage of total proteins is albumin?
Answer
(C)
50-70
4
What is the approximate percentage of α₁ globulin in total proteins?
Answer
(C)
2.4-4.4%
5
Approximately what percentage of total proteins is γ globulin?
Answer
(B)
10.0-21.0%
6
What is the most common normal albumin to globulin ratio (A : G)?
Answer
(C)
2.0:1.0
7
In the Thymol turbidity test, which protein is primarily involved?
Answer
(D)
β Globulin
8
In a quaternary structure, how are subunits primarily connected?
Answer
(D)
Non-covalent bonds
9
What is the approximate molecular weight of human albumin?
Answer
(C)
69,000
10
At its isoelectric pH, in what form does an amino acid primarily exist?
Answer
(C)
Zwitterion
11
What chemical linkage is created when two cysteine residues interact?
Answer
(B)
Two cysteine residues
12
What describes a protein that has been rendered solid?
Answer
(D)
All of the above
13
In an acidic environment, what form does an amino acid typically take?
Answer
(A)
Cation
14
Which amino acid features a side chain that readily interacts with water?
Answer
(D)
Serine
15
Which amino acid is least likely to be found within a helical structure of a protein?
Answer
(C)
Proline
16
Which protein is known for its high concentration of cysteine residues?
Answer
(B)
Keratin
17
How is the basic sequence of amino acids in a protein usually identified?
Answer
(D)
Sanger's reagent
18
Which pair of amino acid side chains would form an ionic bond with each other?
Answer
(D)
Lysine and aspartate
19
What is the active ingredient found in Sanger's reagent?
Answer
(C)
1-Fluoro-2, 4-dinitrobenzene
20
What is the most prevalent protein found in animals?
Answer
(C)
Collagen
21
Which cellular component speeds up the folding process of newly created proteins?
Answer
(D)
All of these
22
What kind of bonds create the primary configuration of a protein?
Answer
(B)
Peptide bonds
23
What kind of bonds cause the formation of an α-Helix?
Answer
(A)
Hydrogen bonds
24
Where can glutelins be commonly found?
Answer
(D)
Cereals
25
What is a test used to identify aromatic amino acids?
Answer
(D)
Xanthoproteic reaction
26
Which of these amino acids has two amino groups in its structure?
Answer
(C)
Lysine
27
Which protein structure remains intact during denaturation?
Answer
(B)
Secondary structure
28
Which of the following amino acids is *not* a branched chain amino acid?
Answer
(B)
Alanine
29
Which amino acid's side chain includes an -OH group?
Answer
(A)
Serine
30
What is the active chemical in Edman's reagent?
Answer
(A)
Phenylisothiocyanate
31
What is the primary application of Edman's degradation in protein analysis?
Answer
(C)
To identify the specific order of amino acids in a protein.
32
A genetic lack of which enzyme leads to a specific metabolic disorder?
Answer
(C)
Gaucher's disease
33
What enzyme deficiency is linked to the development of Tay-Sachs disease?
Answer
(B)
Hexosaminidase A
34
Which apolipoprotein has the greatest molecular size?
Answer
(C)
Apo B-100
35
In which organ is apolipoprotein B-100 primarily produced?
Answer
(B)
Liver
36
Where does the synthesis of apolipoprotein B-48 primarily occur?
Answer
(C)
Intestine
37
Apolipoproteins A-I and A-II are found mainly in which type of lipoprotein?
Answer
(D)
HDL and chylomicrons
38
Which lipoprotein contains apolipoprotein B-48?
Answer
(A)
Chylomicrons
39
Apolipoprotein B-100 is a component of which lipoproteins?
Answer
(B)
VLDL only
40
Which lipoproteins contain apolipoproteins C-I, C-II, and C-III?
Answer
(D)
All of these
41
Which of the following lipoproteins typically *doesn't* contain Apolipoprotiens C-I, C-II, and C-III?
Answer
(C)
LDL
42
What is the primary function of Apolipoprotein A-l?
Answer
(C)
Both (A) and (B)
43
What is the main role of Apolipoprotien B-100?
Answer
(B)
Ligand for receptor
44
Apolipoprotein C-II activates which of the following enzymes?
Answer
(C)
Extrahepatic lipoprotein lipase
45
Where do nascent chylomicrons acquire apolipoproteins C and E?
Answer
(D)
HDL
46
What action does terminal transferase perform?
Answer
(B)
Adds nucleotides at 3' end
47
Which type of nucleic acid is hydrolyzed by S1 nuclease?
Answer
(D)
Any single stranded DNA
48
In which of these situations would a positive nitrogen balance be expected?
Answer
(C)
Growing age
49
From which of the following combinations can alanine be produced?
Answer
(B)
Pyruvate and glutamate
50
Which of the following is NOT necessary for the synthesis of alanine?
Answer
(B)
α-ketoglutarate