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Quick Biochemistry - Fats And Fatty Acid Metabolism (Section 3)

1
Which substance does the liver use to conjugate BSP dye for removal?
Answer
(C)
Cystein component of glutathione
2
What is the typical range for total plasma protein levels?
Answer
(B)
6-8 gm/100ml
3
What condition is indicated by decreased albumin alongside increased production of unidentified proteins migrating in the beta/gamma region?
Answer
(A)
Cirrhosis of liver
4
What condition is suggested by elevated α₂-Globulin and albumin loss in urine?
Answer
(B)
Nephrotic syndrome
5
What is the approximate typical prothrombin time?
Answer
(C)
14 sec
6
How does prothrombin time change in obstructive jaundice?
Answer
(C)
Responds to vit K and becomes normal
7
How is prothrombin time affected in parenchymal liver disease?
Answer
(B)
Increases
8
Which kidney function is assessed using the urea clearance test?
Answer
(A)
Glomerular filtration rate
9
In the formula for maximum urea clearance (UxV/B), what does 'U' represent?
Answer
(B)
Concentration of urea in urine in mg/100 ml
10
What is the typical average maximum urea clearance value?
Answer
(C)
75 ml
11
What is the typical range for standard urea clearance?
Answer
(D)
54 ml
12
Urea clearance is reduced in which of the following conditions?
Answer
(A)
Acute nephritis
13
Which method is suitable for determining glomerular filtration rate?
Answer
(A)
Endogenous creatinine clearance
14
Considering standard blood creatinine levels, what process best describes this metabolite's behavior?
Answer
(A)
Filtered at the glomerulus but not secreted nor reabsorbed by the tubule
15
What is the typical range for creatinine clearance values?
Answer
(D)
95-105 ml/min
16
The insulin clearance test helps evaluate what aspect of kidney function?
Answer
(A)
Glomerular filtration rate
17
Regarding the polysaccharide insulin, which statement is most accurate concerning its processing within the nephron?
Answer
(A)
Filtered at the glomerulus but neither secreted nor reabsorbed by the tubule
18
What is the average or typical value for insulin clearance?
Answer
(D)
120 ml/1.73 sqm
19
What does a creatinine EDTA clearance test primarily assess?
Answer
(C)
Glomerular filtration rate
20
What are the final substances produced by saponification?
Answer
(D)
Both (A) and (C)
21
What is a typical value for the rate at which para-aminohippurate (PAH) is cleared, normalized to a surface area of 1.73 square meters?
Answer
(D)
574 ml/min
22
Regarding para-amino hippurate, what is its primary method of processing within the nephron?
Answer
(A)
Filtered at glomeruli and secreted by the tubules
23
What is the clinical utility of measuring the Tm for PAH, or the maximum rate at which the renal tubules secrete PAH?
Answer
(A)
To assess the degree of tubular injury
24
What is the typical range for Tm (maximum secretory capacity) for PAH, expressed in mg/min per 1.73 square meters?
Answer
(D)
80
25
In a healthy adult, what is the usual range for the filtration factor?
Answer
(B)
0.16-0.21
26
In which of the following conditions is the filtration factor typically within the normal range?
Answer
(A)
Early essential hypertension
27
In which of the following conditions would an increased filtration factor be expected?
Answer
(B)
Malignant phase of hypertension
28
In which of the following conditions is the filtration factor typically decreased?
Answer
(A)
Glomerulonephritis
29
What physiological process is best reflected by the excretion of phenolsulphanpthalein (PSP)?
Answer
(B)
Maximaltabular excretory capacity
30
Which of the following is a type of polyunsaturated fatty acid?
Answer
(C)
Linoleic acid
31
Which compound from the list below is a type of omega-3 polyunsaturated fatty acid?
Answer
(B)
a-Linolenic acid
32
What is a characteristic of triglycerides?
Answer
(C)
They are non-polar
33
In which of the following is cerebronic acid found?
Answer
(C)
Galactosyl ceramide
34
Acylsphingosine is another name for which of the following substances?
Answer
(B)
Ceramide
35
Which lipoprotein contains the highest proportion of phospholipids?
Answer
(D)
HDL
36
What is the primary lipid component of chylomicrons?
Answer
(A)
Triglycerides
37
How many carbon atoms are present in a cholesterol molecule?
Answer
(C)
27
38
Which of the following lipoproteins has the highest concentration of cholesterol?
Answer
(C)
LDL
39
What is the most common form in which lipids are stored?
Answer
(C)
Triglycerides
40
Cerebonic acid is a component of which of the following?
Answer
(B)
Cerebrosides
41
What is the nitrogenous base found in lecithin?
Answer
(B)
Choline
42
Which of the following is NOT an omega-6 fatty acid?
Answer
(B)
a-Linolenic acid
43
Which of these fatty acids does NOT contain 18 carbon atoms?
Answer
(C)
Arachidonic acid
44
Which of the following fatty acids has 20 carbon atoms?
Answer
(D)
Arachidonic acid
45
What transports triglycerides from the liver to other body tissues?
Answer
(B)
VLDL
46
How is cholesterol transported from the liver to other body tissues?
Answer
(D)
LDL
47
Which of the following, when elevated in plasma, is associated with protection against atherosclerosis?
Answer
(C)
HDL
48
Which of the following amino acids is an essential amino acid?
Answer
(B)
Histidine
49
Which amino acid contains a sulphydryl group?
Answer
(A)
Cysteine
50
For what process is oligosaccharide-pyrophosphoryl dolichol necessary?
Answer
(A)
N-linked glycoproteins