Question

46, and 47 question

46) Samantha wants to alcohol as a tincture for the solution in her laboratory activity. She wants to sterilize her alcohol first. She is afraid to use heat to sterilize the alcohol. Heat will cause some of the alcohol to evaporate. Which is the best method for Samantha to use to sterilize and prevent volume loss of the alcohol? A) boiling B) autoclave pasterization D) membrane filtration E) dry heat of the oven 12) In the "Golden age of Microbiology, Louis Pasteur contributions included all the following except A) Aseptic technique using heat to kill microves. B) Microbes produce antibiotics. C) Killing spoilage bactetia in food. D Microbes are present in the air E Microbes can convert sugar inte alcohol

Answer 1

Q46. The correct option is C (pasterization)

Explanation: the process pasterization is preferred over other methods beacuse boiling, autocleave and dry heat oven can not only kill the microbes present but also evaporate the amount of alcohol present in itbut it is not the case with pasterization.

Q47. The correct option is E (microbes can convert sugar into alcohol)

Explanation: Pasteur contributed to prevent spoiling of the fermented alcohols by pasterizing them.