Exams Nepal Study Room - MBBS Exams

49049 + Questions

Q1 Apolysis is the process of
A. cellular digestion
B. separation of gravid proglottid from main body
C. developed of unfertilized eggs
D. destruction of phagocytes
Q2 Which one of the following cellular parts is correctly described?
A. Centrioles - Sites for active RNA synthesis.
B. Lysosomes - Optimally active at a pH of about 8.5.
C. Thylakoids - Flattened membranous sacs forming the grana of chloroplasts.
D. Ribosomes - Those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S
Q4 All are None law (principle) states that
A. all stimuli produce action potentials
B. any cell membrane can generate and propagate an action potential if stimulated to threshold value.
C. potential difference can either be 0 or 100
D. the property of action potential is independent of the strength of depolarizing stimulus.
Q5 Which is/are true for elastomers?
A. These are synthetic polymers possessing elasticity
B. These possess very weak intramolecular forces or attractions between polymer chains
C. Vulcanised rubber is an example of elastomer
D. All of the above
Q6 Orlon has a unit
A. Vinyl cyanide
B. Acrolein
C. Glycol
D. Isoprene
Q7 A spontaneous reaction is impossible if
A. (a)
B. (b)
C. (c)
D. (d)
Q8 . Which of the following is not emulsifying agent for W/O emulsion?
A. Lampblack
B. Long chain alcohol
C. Proteins
D. Heavy metal salts of fatty acids
Q9 Systole refers to the contraction of:
A. atria and ventricles
B. SA node
C. AV node
D. none of these
Q10 Which of the following fish has lung?
A. Labeo
B. Exocoetus
C. Protopterus
D. Hippocampus