question

[jackcui]

which of following is not correct about interleukins?

1. IL-5 is produced by activated T helper cells and mast cells.
2. IL-3 is secreted by T helper cells and mast cells.
3. IL-8 is secreted by monocytes and macrophages.
4. IL-10 is produced by activated T cells and mast cells
5. IL-7 is secreted by bone marrow stromal cells.

(reference from Kaplan Dent essentials:

IL-5 (source) TH2 cees
IL-3 TH cells, NK cells
IL-8 Macrophagess, endothelial cesss
IL-10 TH2 cells
IL-7 Primary lymph organs (so this one should be correct answer)?

Each of the following DNA virus encodes a DNA polymerase except one, which is this exception?

1. Hepatitis B virus(yes for polymerase)
2. SV40
3. Adneovirus (No)
4. EB Virus (No)
5. Poxvirus (yes for polymerase)

which one should be the right answer?

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[jackcui]

68. Which of the following kinds of mutations is caused by base analogues?
A. Deletions
B. Inversions
C. Frameshifts
D. Transitions
E. Transversions​

 

[jackcui]

73. Which of the following neoplasms appears the MOST* often in children?
A. Neuroblastoma
B. Chondrosarcoma
C. Adenocarcinoma
D. Multiple myeloma
E. Basal cell carcinoma​

 

[seemabhatara]

68. Which of the following kinds of mutations is caused by base analogues?
A. Deletions
B. Inversions
C. Frameshifts
D. Transitions
E. Transversions​

D. Transitions

 

[seemabhatara]

73. Which of the following neoplasms appears the MOST* often in children?
A. Neuroblastoma
B. Chondrosarcoma
C. Adenocarcinoma
D. Multiple myeloma
E. Basal cell carcinoma​

A. Neuroblastoma

 

[jackcui]

80. Streptococcus pyogenes, group A, is subdivided into specific antigenic types principally on the basis of immunologic differences in its
A M protein.
B. treptolysin O.
C. streptolysin S.
D. C polysaccharide.
E. hyaluronic acid capsule.​

 

[jackcui]

81. Which of the following bacterial exotoxins converts plasminogen to plasmin?
A. M-protein
B. Coagulase
C. Plasmalysin
D. Hyaluronidase
E. Streptokinase​

 

[jackcui]

82. Which of the following is the LEAST likely complication of nodular prostatic hyperplasia?

A.Dysuria
B.Hydronephrosis
C.Pyelonephritis
D.Development of carcinoma
E.Urinary tract obstruction

 

[jackcui]

93. Hypersensitivity to M. Tuberculosis is manifested by which of the following?
A Necrosis
B. Exudation
C. Epithelioid cells
D. Langhans' giant cells
E. Spreading of the initial focus​

 

[jackcui]

97. Which of the following conditions increase the risk of developing osteosarcoma?
A Osteomalacia
B. Osteoporosis
C. Osteobiastoma
D. Osteitis deformans
E. Osteogenesis imperfecta​

 

[jackcui]

Immunologies! resistance to MOST

intracellular pathogens is manifested as which of the following?
A Lymphoid atrophy
B. Humoral immunity
C. Cellular immunity
D. Wheal and flare reactions
E. Non-specific serum protection​

 

[morphology]

Immunologies! resistance to MOST

intracellular pathogens is manifested as which of the following?
A Lymphoid atrophy
B. Humoral immunity
C. Cellular immunity
D. Wheal and flare reactions
E. Non-specific serum protection​

answer is cellular immunity.

 

[morphology]

81. Which of the following bacterial exotoxins converts plasminogen to plasmin?
A.M-protein
B. Coagulase
C. Plasmalysin
D. Hyaluronidase
E. Streptokinase​

streptokinase

 

[seemabhatara]

97. Which of the following conditions increase the risk of developing osteosarcoma?
A Osteomalacia
B. Osteoporosis
C. Osteobiastoma
D. Osteitis deformans
E. Osteogenesis imperfecta​

D. Osteitis deformans(PAGETS DISEASE)

 

[seemabhatara]

93. Hypersensitivity to M. Tuberculosis is manifested by which of the following?
A Necrosis
B. Exudation
C. Epithelioid cells
D. Langhans' giant cells
E. Spreading of the initial focus​

A Necrosis

 

[seemabhatara]

82. Which of the following is the LEAST likely complication of nodular prostatic hyperplasia?

A.Dysuria
B.Hydronephrosis
C.Pyelonephritis
D.Development of carcinoma
E.Urinary tract obstruction

D.Development of carcinoma

 

[seemabhatara]

80. Streptococcus pyogenes, group A, is subdivided into specific antigenic types principally on the basis of immunologic differences in its
A M protein.
B. treptolysin O.
C. streptolysin S.
D. C polysaccharide.
E. hyaluronic acid capsule.​

D. C polysaccharide.

 

[jackcui]

D. C polysaccharide.

M protein

 

[jackcui]

103. The fluid-mosaic model for membrane structure proposes that
A. the outer and inner faces of the membrane are identical.
B. peripheral proteins are situated only on the outer face of the plasma membrane.
C. integral proteins are associated with the hydrophobic phase of the bilayer.
D. both polar and nonpolar ends of membrane phospholipids are within the hydrophobic phase of the bilayer.​

 

[seemabhatara]

103. The fluid-mosaic model for membrane structure proposes that
A. the outer and inner faces of the membrane are identical.
B. peripheral proteins are situated only on the outer face of the plasma membrane.
C. integral proteins are associated with the hydrophobic phase of the bilayer.
D. both polar and nonpolar ends of membrane phospholipids are within the hydrophobic phase of the bilayer.​

C. integral proteins are associated with the hydrophobic phase of the bilayer.

 

[seemabhatara]

M protein

from kaplan

beta haemolytic sterptococci r furthr subdivided into gps A through D AND F ,G basd on antibodies to heat stable acid stable carbohydrate in their cell wall called C CARBOHYDRATE or LANCEFIELD Ag.........

m confusd???wt shd b the ans????

k got it .....all ve C POLYSACCHARIDE n so the differnce lies in Ab to it so in pyogenes it will b M PROTEIN

 

[jackcui]

A derivative of vitamin K is the coenzymefor which of the following?

A Production of menadiol
8. Esterification of retinol
C. Hydrolysis of peptide bonds
D. Cross-linking of fibrinogen
E. Carboxylation of glutamate side chains​

 

[jackcui]

from kaplan

beta haemolytic sterptococci r furthr subdivided into gps A through D AND F ,G basd on antibodies to heat stable acid stable carbohydrate in their cell wall called C CARBOHYDRATE or LANCEFIELD Ag.........

m confusd???wt shd b the ans????

k got it .....all ve C POLYSACCHARIDE n so the differnce lies in Ab to it so in pyogenes it will b M PROTEIN

The key is M protein.

http://en.wikipedia.org/wiki/M_protein_(Streptococcus)

 

[seemabhatara]

A derivative of vitamin K is the coenzymefor which of the following?

A Production of menadiol
8. Esterification of retinol
C. Hydrolysis of peptide bonds
D. Cross-linking of fibrinogen
E. Carboxylation of glutamate side chains​

. Carboxylation of glutamate side chain

 

[jackcui]

Which of the following generates a slowly developing long-term response in target tissues by binding to an intracellular receptor?

A Glucagon
B. Estrogen
C. Prolactin
D. Growth hormone
E. Parathyroid hormone​

 

[jackcui]

Which of the following functions as part of the extracellular matrix?

A Mucin
B.Heparin
C. Collaginase
D. Chondroitin sulfate
E. Dolichol phosphate​

 

[seemabhatara]

Which of the following generates a slowly developing long-term response in target tissues by binding to an intracellular receptor?

A Glucagon
B. Estrogen
C. Prolactin
D. Growth hormone
E. Parathyroid hormone​

B. Estrogen(STEROID)

 

[seemabhatara]

Which of the following functions as part of the extracellular matrix?

A Mucin
B.Heparin
C. Collaginase
D. Chondroitin sulfate
E. Dolichol phosphate​

D. Chondroitin sulfate

 

[jackcui]

161. Which of the following substances represents an unsaturated fatty acid?
A. Cholesterol
B. Palmitate
C. Stearate
D. Choline
E. Oleate​

 

[jackcui]

For a reaction catalyzed by an enzyme with a Km = 1 mM, which of the following represents the effect on the velocity if is changed from 10 mM to 20 mM? (Assume that the enzyme obeys Michaelis-Menten kinetics.)

A. Small decrease
B. Small increase
C. Twofold decrease
D. Twofold increase
E. Twentyfold increase​

 

[jackcui]

168. Each of the following is an effect of parathyroid hormone EXCEPT one. Which one is this EXCEPTION?
A. Stimulation of 1-alpha-hydroxylase in kidney
B. Stimulation of osteoclastic activity in bone
C. Stimulation of calcium reabsorption by kidney
D. Inhibition of phosphate reabsorption by kidney
E. Inhibition of intestinal absorption of calcium​

 

[seemabhatara]

161. Which of the following substances represents an unsaturated fatty acid?
A Cholesterol
B. Palmitate
C. Stearate
D. Choline
E. Oleate​

E. Oleate

 

[jackcui]

Each of the following lipid classes is

incorporated into membranes EXCEPT one. Which one is this EXCEPTION?
A. Cholesterol
B. Ganglioside
C. Triglyceride
D. Sphingomyelin
E. Phosphatidylcholine​

 

[jackcui]

Synaptic vesicle contents are released at the neuromuscular junction when which of the following occurs?

A. Hyperpolahzation of motor end-plate
B. Shortening of skeletal muscle
C. Release of ATP from nerve terminal
D. Entry of calcium at nerve terminal
E. Release of acetylcholine from motor end-plate​

 

[seemabhatara]

Each of the following lipid classes is

incorporated into membranes EXCEPT one. Which one is this EXCEPTION?
A. Cholesterol
B. Ganglioside
C. Triglyceride
D. Sphingomyelin
E. Phosphatidylcholine​

C. Triglyceride

 

[seemabhatara]

Synaptic vesicle contents are released at the neuromuscular junction when which of the following occurs?

A. Hyperpolahzation of motor end-plate
B. Shortening of skeletal muscle
C. Release of ATP from nerve terminal
D. Entry of calcium at nerve terminal
E. Release of acetylcholine from motor end-plate​

D. Entry of calcium at nerve terminal

 

[jackcui]

185. Which of the following causes activation of the pyloric pump, relaxation of the pylorus, and contraction of the lower esophageal sphincter?​

A. Gastrin
B. Secretin
C. Pepsinogen
D. Acetylcholine
E. Cholecystokinin

 

[jackcui]

188. The clearance rate for a substance that is completely removed from the blood during one pass through the kidney is equal to which of the following?
A. Renal plasma flow
B. Filtration fraction
C. Urinary excretion rate
D. Glomerular filtration rate
E. Tubular transport maximum​

 

[jackcui]

Which of the following is a function of the enterogastric reflex?

A. Decreases the opening of the gastroesophageal sphincter
B. Increases motiiity of the esophagus
C. Decreases motiiity of the stomach
D. Increases motility of the ileum
E. Increases gallbladdrr emptying​

 

[seemabhatara]

185. Which of the following causes activation of the pyloric pump, relaxation of the pylorus, and contraction of the lower esophageal sphincter?​

A. Gastrin
B. Secretin
C. Pepsinogen
D. Acetylcholine
E. Cholecystokinin

A. Gastrin

 

[seemabhatara]

188. The clearance rate for a substance that is completely removed from the blood during one pass through the kidney is equal to which of the following?
A. Renal plasma flow
B. Filtration fraction
C. Urinary excretion rate
D. Glomerular filtration rate
E. Tubular transport maximum​

A. Renal plasma flow

 

[seemabhatara]

Which of the following is a function of the enterogastric reflex?

A. Decreases the opening of the gastroesophageal sphincter
B. Increases motiiity of the esophagus
C. Decreases motiiity of the stomach
D. Increases motility of the ileum
E. Increases gallbladdrr emptying​

C. Decreases motiiity of the stomach

 

[jackcui]

45. In terms of wall thickness, the relative
proportion of smooth muscle is GREATEST in which of the following?
A Veins
B. Venules
C. Arterioles
D. Capillaries
E. Large arteries​

 

[dreamchaser]

45. In terms of wall thickness, the relative
proportion of smooth muscle is GREATEST in which of the following?
A Veins
B. Venules
C. Arterioles
D. Capillaries
E. Large arteries​

C. Arterioles

 

[jackcui]

Salivary gland striated ducts are composed of which of Ihe following types of epithelium?

A Simple squamous
B. Simple cuboids I
C. Stratified squamous
D. Simple low columnular
E. Psuedotratified ciliated columnar

please choose from these 2 choices​

 

[jackcui]

Occlusocervically, the height of the mesial marginal ridge of a permanent mandibular first molar is the same as the height of the

1. triangular ridge of the mesiofacial cusp of a mandibular first molar.
2. triangular ridge of the distofacial cusp of a mandibular first molar.
3. distal marginal ridge of a mandibular first molar.
4. mesial marginal ridge of a mandibular second molar.
5. distal marginal ridge of a mandibular second premolar​

 

[jackcui]

32. When viewing a maxillary central incisor from the mesial aspect, one normally finds the incisal ridge of the crown
1. facial to the center of the root.
2. lingual to the center of the root.
3. on line with the center of the root.
4. in variable positions​

 

[d dimps]

32. When viewing a maxillary central incisor from the mesial aspect, one normally finds the incisal ridge of the crown
1. facial to the center of the root.
2. lingual to the center of the root.
3. on line with the center of the root.
4. in variable positions​

Ans: 1) facial to the center of root.

 

[jackcui]

39. In a right lateral excursion, the mesiofacial cusp of the maxillary right first molar passes through which of the following grooves of the mandibular right first molar?
1. Lingual groove
2. Central groove
3. Facial groove
4. Distofacial groove
​

I think the right answer should be the mesial facial groove of the 1st mandibular, right? But the key given to the answer is 1, lingual groove, why?

 

[jackcui]

On the occlusal surface of a maxillary molar, the groove that representt the working path of the distofacial cusp of the mandibular molar is the

1. central groove.
2. facial groove.
3. lingual groove.
4. distal oblique groove.
5. transverse groove of the oblique ridge.​

 

[jackcui]

The design of a restored occlusal surface is dependent upon the
(a) contour of the articular eminence.
(b) position of the tooth in the arch.
(c) amount of lateral shift in the rotating condyle.
(d) amount of vertical overlap of anterior teeth.

A. (a) and (c) only

B. (b), (c), and (d) only
C. (b) and (d) only
D. (c) and (d) only
E. (a), (b), (c), and (d)​