Author Question: At high altitudes, sterilization by boiling must be prolonged primarily because of which of the ... (Read 58 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
At high altitudes, sterilization by boiling must be prolonged primarily because of which of the following?
 
  a. Increased oxygen content c. Increased normal boiling point
  b. Reduced oxygen content d. Reduced normal boiling point

Question 2

Dry-heat sterilization involves a 1-hour to 2-hour exposure at approximately:
 
  a. 100 C. c. 170 C.
  b. 132 C. d. 200 C.



akpaschal

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

ANS: D
Because water boils at a lower temperature at high altitudes, exposure time must be prolonged during this form of sterilization at high elevations.

Answer to Question 2

ANS: C
Dry heat is another effective method of heat sterilization. Its use is limited to items that are not heat-sensitive. Temperatures must be maintained between 160 C and 180 C for 1 to 2 hours for sterilization.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

For a complete list of videos, visit our video library