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Desiccation and Osmosis Quiz

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Questions and Answers

Which of the following best describes desiccation?

Removing moisture from something to speed up decay

Removing moisture from something to preserve it (correct)

Adding moisture to something to preserve it

Adding moisture to something to speed up decay

What is the name of the agent used to bring about desiccation?

Dehydration

Desiccation

Desiccator

Desiccant (correct)

What is the mode of action of pH?

Disruption of metabolism

Metabolic changes (correct)

Shrinkage of bacterial cell

Preservation by drying

Which of the following foods can be preserved using pasteurization?

Milk Signup and view all the answers

What is the temperature and duration required for pasteurization?

63 °C for 30 minutes Signup and view all the answers

Is pasteurization a method of sterilization?

No Signup and view all the answers

Which type of filter is used to separate solids from liquids or gases?

Mechanical filter Signup and view all the answers

What is the fluid that passes through the filter called?

Filtrate Signup and view all the answers

Why is filtration especially useful in sterilizing sensitive drugs?

Other methods of decontamination would adversely affect sensitive drugs Signup and view all the answers

Which of the following statements is true about sterilization?

It destroys all living organisms and viruses Signup and view all the answers

What is the difference between sterilization and antiseptic?

Sterilization destroys all living organisms and viruses while antiseptic only inhibits their growth Signup and view all the answers

What is a sterile object?

An object that is free of all life forms, including bacterial endospores and viruses Signup and view all the answers

Which of the following is the definition of asepsis?

The freedom from contamination by pathogenic organisms Signup and view all the answers

What is the purpose of using aseptic technique?

To protect patients from dangerous germs Signup and view all the answers

What is the mode of action of antibiotics?

They kill bacteria or make it hard for bacteria to grow and multiply Signup and view all the answers