Medical MCQs

5099 MCQs  (Page 19 of 510)

The lipoprotein particles that have the highest percentage concentration of cholesterol is_______________?
A. Chylomicron
B. Vldl (very low density lipoprotein)
C. Ldl (low density lipoprotein)
D. Hdl (high density lipoprotein)
Which of the following fatty acids are not syntehsised in human body_____________?
A. Oleic, linoleic and linolenic acid
B. Arachidonic, linolenic and linoleic acid
C. Palmitic oleic and arachidonic
D. Linoleic, arachidonic and stearic acid
Detoxification of drugs is controlled by_____________?
A. Cytochrome
B. Cytochrome p450
C. Cytochrome c
D. Cytochrome a
Detoxification or protective synthesis occurs by____________?
A. Oxidation
B. Reduction
C. Conjugation
D. Any of the above
The major driving force for formation of membrane lipid bilayer is____________?
A. Hydrogen bonding
B. Hydrophobic interactions
C. Vander wall forces
D. Not known
The most important buffer in RBC is____________?
A. O2 hb +na hemoglobinate
B. O2hb +k hemoglobinate
C. H2co3 + khco3
D. H2co3 +nahco3
The precursor of steroid is_______________?
A. Amino acids
B. Fatty acids
C. Cholesterol
D. None of the above
Which is not seen in HMG CoA pathway ?
A. Pyruvate
B. Cholesterol
C. Mevalonate
D. Acetyl coa
Rate limiting step in cholesterol synthesis is_______________?
A. Hmg coa synthetase
B. Hmg coa lyase
C. Hmg coa reductase
D. Mevalonate synthetase