The separation depends on the relative behaviour of molecules to
پاسخ دهید
(C)
Both A and B
2
What is a cofactor?
پاسخ دهید
(B)
A non-protein molecule that helps an enzyme
3
What is the function of a chaperone protein?
پاسخ دهید
(C)
To assist in protein folding
4
The separation depends on the relative behaviour of the molecules in a mixture to associate more strongly with
پاسخ دهید
(B)
the stationary phase
5
What is the primary function of mRNA?
پاسخ دهید
(A)
To carry genetic information from DNA to ribosomes
6
Which of the following techniques can be used in small laboratories?
پاسخ دهید
(A)
ELISA
7
Which of the following is a type of secondary structure in proteins?
پاسخ دهید
(C)
Alpha helix
8
Which of the following is a purine base found in DNA and RNA?
پاسخ دهید
(C)
Guanine
9
What type of reaction typically occurs when a molecule is broken down with the addition of water?
پاسخ دهید
(B)
Hydrolysis
10
Which of the following can be detected by ELISA?
پاسخ دهید
A
B
C
11
Which molecule is the primary source of energy in cells?
پاسخ دهید
(A)
Glucose
12
What is the role of ATP synthase?
پاسخ دهید
(B)
To synthesize ATP
13
Which of the following is a characteristic of competitive enzyme inhibitors?
پاسخ دهید
(C)
They increase the Km
14
What type of bond is formed between two amino acids?
پاسخ دهید
(B)
Peptide
15
What is the role of the enzyme amylase?
پاسخ دهید
(C)
Break down carbohydrates
16
The technique which depends on the antigen and the antibody is
پاسخ دهید
(C)
Both A and B
17
What is the main function of the hormone insulin?
پاسخ دهید
(B)
Decrease blood glucose levels
18
Which of the following is a technique used in ELISA?
پاسخ دهید
(D)
Enzyme
19
What is the role of ATP in biological systems?
پاسخ دهید
(B)
Energy transport
20
The application of RIA and ELISA is
پاسخ دهید
(D)
All of the above
21
Which of the following is used for clinical application of electrophoresis?
پاسخ دهید
(D)
All of the above
22
Which of the following molecules is a sterol?
پاسخ دهید
(B)
Cholesterol
23
Which of the following is used as a label in ELISA?
پاسخ دهید
(D)
Enzyme
24
What type of bond links amino acids together in a protein?
پاسخ دهید
(B)
Peptide bond
25
Which of the following are the basic units of a colorimeter?
پاسخ دهید
(A)
A light source, a cuvette, and a photodetector
26
What molecule is the final electron acceptor in the electron transport chain?
پاسخ دهید
(B)
Oxygen
27
In the clinical laboratory for the identification of major amino acids and drugs in urine or serum.
پاسخ دهید
(D)
All of the above
28
In paper chromatography, the solvent system provides
پاسخ دهید
(A)
The mobile phase
29
What is the most abundant type of lipid in cell membranes?
پاسخ دهید
(C)
Phospholipids
30
For which analysis colorimetry is used in the hospital?
پاسخ دهید
(D)
All of the above
31
The most used technique to identify or quantify the antigen or antibody is
پاسخ دهید
(D)
All of the above
32
Which of the following is a product of the Krebs cycle?
پاسخ دهید
(C)
ATP
33
Inhibition of a certain pathway may be due to?
پاسخ دهید
A
B
C
D
34
What does 'deamination' refer to?
پاسخ دهید
(A)
Removal of an amino group
35
In radioimmunoassay, the sample is
پاسخ دهید
(B)
Labeled with a radioactive isotope
36
Which of the following is a pyrimidine base found in DNA?
پاسخ دهید
(C)
Cytosine
37
The ratio of the distance travelled by the solute to the distance travelled by the solvent is represented by
پاسخ دهید
(C)
Both A and B
38
Chromatography is a process for separation of components in a solution by differences in migration rate as the solution moves
پاسخ دهید
(A)
Mobile phase
39
What type of enzyme is responsible for breaking down proteins?
پاسخ دهید
(C)
Protease
40
Which of the following can be measured using colorimetry?
پاسخ دهید
A
B
D
41
The method is applicable for the separation of carbohydrates, proteins, peptides, sterol acids, vitamins, steroids, vaccines like fragile viruses and drugs.
پاسخ دهید
(B)
HPLC
42
What is the basic structural unit of a carbohydrate?
پاسخ دهید
(C)
Monosaccharide
43
The energy generated by the detector in flame photometry is measured by
پاسخ دهید
(A)
Galvanometer
44
ELISA is a technique for determining the presence of
پاسخ دهید
(C)
Both A and B
45
The principle of spectrophotometry is based on
پاسخ دهید
(A)
Beer-Lambert's Law
46
What type of reaction is the breakdown of ATP to ADP and inorganic phosphate?
پاسخ دهید
(A)
Hydrolysis
47
Which of the following is often used as the stationary phase in paper chromatography?
پاسخ دهید
(A)
Filter paper
48
In paper chromatography, the relative of a sample are separated by differences in their relative solubilities between
پاسخ دهید
(B)
Liquid/Liquid phase
49
What type of bond links monosaccharides together to form polysaccharides?
پاسخ دهید
(B)
Glycosidic bond
50
What is the process by which glycogen is broken down into glucose?
