E-PolyLearning

36. What helps in the heat resistance of endospore?
a. calcium-DPA complex
b. water
c. methylene
d. calcium
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Answer: (a).calcium-DPA complex

37. Cysts also have high heat resistance like endospores.
a. True
b. False
c. May be
d. Can't say
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Answer: (b).False

38. Which of the following methods can be utilized for removing peripheral proteins of the cytoplasmic membrane?
a. treatment by detergents
b. osmotic shock
c. heat application
d. destruction of the membrane
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Answer: (b).osmotic shock

39. Which of the following are true for cytoplasmic membrane?
a. hydrophilic barrier
b. hydrophobic barrier
c. site of generation of protonmotive force
d. hydrophobic barrier and site of generation of protonmotive force
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Answer: (d).hydrophobic barrier and site of generation of protonmotive force

40. The organisms which can use reduced inorganic compounds as electron donors are known as _________
a. chemotrophs
b. organotrophs
c. lithotrophs
d. phototrophs
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Answer: (c).lithotrophs