問題一覧
1
High concentration of neutral salts causes the ppt of proteins. This is called?
salting out
2
Butter becomes rancid upon exposure to air due to formation of
butyric acid
3
Oxidation product of ketone bodies
carbon dioxide
4
The following are examples of chromoprotein, EXCEPT:
heparin
5
Cellular elements of the blood devoid of nucleus:
RBC
6
A hormone which stimulates glycogenesis:
insulin
7
What is wobble?
the ability of certain antibodies to pair with codes that differ at the third base
8
Amino acids positive for Sakaguchi reaction:
arginine
9
The following sugars are aldohexoses EXCEPT:
fructose
10
The following are neutral amino acids , EXCEPT:
lysine
11
Sickle cell anemia is the clinical manifestation of homozygous genes for an abnormal hemoglobin molecule. The mutation event responsible for mutation in the beta chain is:
point mutation
12
Which is the monomer unit of proteins?
amino acid
13
It is a model which best explains the enzyme substrate action:
lock and key
14
Ketogenic amino acids
all of the choices
15
The principal end product of protein metabolism
urea
16
Glucose is stored in the liver as:
glycogen
17
Ketose can be differentieted from aldoses by this test
Seliwanoff's test
18
Which of the following amino acids has no alpha amino group?
proline and hydroxyproline
19
The chief end product of purine metabolism in man:
uric acid
20
The process of converting glucose into glycogen is called:
glycogenesis
21
The major buffer of the extracellular fluid:
bicarbonate carbon dioxide
22
The lipid that is converted to vit D2 upon irradiation:
ergosterol
23
The most sensitive chemical test To detect the presents of cholesterol:
Lieberman Burchard
24
The conversion of amino acid to sugar is:
gluconeogenesis
25
The simplest monosaccharide is
glyceraldehydes
26
The amino acid that is an important precursor of hemoglobin is:
glycine
27
Differentiating test between helical and linear polysaccharides:
iodine
28
Substance responsible for the emulsion of fats is:
bile acids
29
Iodine test is a rxn which may be used to identify carbohydrates. The rxn is due to?
presence of amylose portion
30
Specific test for galactose due to the formation of highly insoluble crystals:
mucic acid
31
Principle involved in the isolation of casein milk:
isometric precipitation
32
When starches are heated, they produce
dextrins
33
Ninhydrin gives a blue coloration with
amino acids
34
It is the enzyme which hydrolizes starch to dextrin and maltose:
amylase
35
In man the principal end product of protein metabolism is:
urea
36
The metabolic degradation of hemoglobin takes place principally in:
the reticuloendothilial system
37
The condition that lowers th pH of the blood due to starvation is called
acidosis
38
Polymers that are responsible for the metabolic capabilities and morphology of organism are:
proteins
39
Process of converting liver glycogen into blood glucose:
glycogenolysis
40
The following protiens are present in egg white EXCEPT:
osseomucoid
41
All of the following are simple proteins except:
glycoproteins
42
Glycolipids found in high concentrations in the brain and nerve cella especially in the myelin sheath:
cerebrosides
43
Cerebroside are positive in the ff test, EXCEPT:
Biuret test
44
Which of the following amino acid has a net positive charge at physiologic pH?
lycine
45
Type of RNA which serves as template for the amino acid sequence being synthesized:
mRNA
46
The reducing property of sugars is due to this group:
aldehyde