MDS PREP
Too light, thin, faded image on radiographic film is the result of
1. Overexposure of film
2. Concentrated developer solution
3. Exhausted developer solution
4. Pre-exposure of radiographic
Radiology
Answer: 3
Too light, thin, faded image on radiographic film is the result of exhausted developer solution.
What is the main difference between endopeptidases and exopeptidases?
1) Endopeptidases cleave internal peptide bonds, while exopeptidases act on the terminal peptide bonds.
2) Endopeptidases are inactive in the stomach, whereas exopeptidases are active in the stomach.
3) Endopeptidases are exclusively found in the pancreas, whereas exopeptidases are exclusively found in the intestinal mucosa.
4) Endopeptidases are exclusively activated by enterokinase, whereas exopeptidases are activated by other enzymes.
E) Endopeptidases are inhibited by acidic pH, while exopeptidases function best at acidic pH.
Endopeptidases, also known as endoproteinases, are enzymes that hydrolyze peptide bonds within the polypeptide chain, breaking down proteins into smaller peptides. Examples include pepsin, trypsin, and chymotrypsin. In contrast, exopeptidases, or exoproteinases, cleave peptide bonds at the ends of the polypeptide chain, either at the N-terminal (aminopeptidases) or C-terminal (carboxypeptidases). These enzymes are involved in the final steps of protein digestion and the degradation of small peptides into individual amino acids.
Which of the following conditions is least likely to show oral manifestations
1. Psoriasis
2. Pemphigoid
3. Periadenitis
4. Behcet"s syndrome
Oral Pathology
Answer: 1
Grid is used
1. To remove secondary radiation
2. Filter the radiation
3. Removes scattered radiation
4. None of the above
Oral Pathology
Answer: 3
Grids are used to remove scattered radiation from the X-ray beam.
Choose the false statement among the four
1) X-rays are ionizing rays
2) X-rays can be focused
3) X-rays cannot be seen or touched
4) X-rays can cause mutation
Radiology
Answer: 2
The tissue preferred for free gingival graft in order of preference is
1. Alveolar mucosa
2. Attached gingiva
3. Edentulous mucosa
4. Unattached gingiva
Periodontics
Answer: 2
What is the most common congenital cause of hypoprothrombinemia?
1) Afibrinogenemia
2) Vitamin K deficiency
3) Hemophilia A
4) Hemophilia B
Although the question mentions that hypoprothrombinemia is associated with vitamin K deficiency, the most common congenital cause of hypoprothrombinemia is actually deficiency of factor II, which is vitamin K-dependent. Vitamin K deficiency can lead to impaired synthesis of factors II, VII, IX, and X in the liver.