Heating Element in Electric Heater Quiz

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What does the term 'microbiology' refer to?

The study of outer space and galaxies

The study of rocks and minerals

The study of plants and animals visible to the naked eye

The study of all living organisms that are too small to be visible with the naked eye (correct)

Who is credited with inventing the petri dish?

Robert Hooke

Louis Pasteur

Julius Richard Petri (correct)

Robert Koch

Which field of microbiology focuses on multicellular parasites?

Mycology

Bacteriology

Virology

Parasitology (correct)

In microbiology, what term is used to describe unicellular animal-like protists?

Protozoa (B) Signup and view all the answers

What is the primary purpose of agar in a petri dish?

To cultivate bacteria (B) Signup and view all the answers

'Virology' is the field of microbiology that focuses on which type of microorganism?

Viruses (C) Signup and view all the answers

What is the primary component of a steam autoclave?

Erlenmeyer Flask (C) Signup and view all the answers

Which laboratory tool is usually made of glass and has a conical body?

Erlenmeyer Flask (A) Signup and view all the answers

What is the purpose of laboratory tweezers and forceps in a lab environment?

To grip and manipulate small or delicate objects (D) Signup and view all the answers

Which tool is commonly used for mixing, heating, and cultivating microbes with liquid cultures?

Erlenmeyer Flask (D) Signup and view all the answers

What are Petri Dishes specifically designed for?

Growth and testing of microbes (A) Signup and view all the answers

In a laboratory setting, what are Test Tubes often used to collect?

Biological samples like blood, saliva, and urine (C) Signup and view all the answers

Why is it important to always ensure that the heating element in the autoclave is covered with water during use?

To prevent the element from overheating and burning out (A) Signup and view all the answers

What is the standard pressure used in autoclaves to achieve a chamber temperature of at least 250F?

15 PSI (D) Signup and view all the answers

What is the purpose of the biological indicator test for autoclaves?

To validate the successful sterilization process (D) Signup and view all the answers

What is the goal of sterilization in an autoclave?

To heat up the material with steam, not water (A) Signup and view all the answers

Which phase of sterilization in an autoclave involves reaching the desired temperature and pressure to kill microorganisms?

Exposure or Sterilization Phase (B) Signup and view all the answers

What is Geobacillus stearothermophilus used for in relation to autoclaves?

To validate the success of an autoclave run in killing microorganisms (B) Signup and view all the answers

What is the purpose of using flaming as a sterilization method?

To expose items to a hot flame (D) Signup and view all the answers

How do hot forced-air ovens differ from hot static-air ovens in sterilization?

Hot forced-air ovens have more reliable sanitization (A) Signup and view all the answers

What is the role of Ethylene Oxide in the sterilization process?

Disrupt cell growth and division (D) Signup and view all the answers

What is the main advantage of using hot forced-air ovens for sterilization?

More reliable sanitization (C) Signup and view all the answers

Why do thicker items enclosed in packaging require more time or higher temperature for sterilization?

To ensure complete sterilization (B) Signup and view all the answers

What is the primary function of incineration in the context of sterilization?

Complete burning of items (C) Signup and view all the answers

What is the purpose of alkylation within cells?

Prevent normal cellular metabolism (D) Signup and view all the answers

Which method is NOT used in sterilization procedures mentioned in the text?

Filtration (B) Signup and view all the answers

What is the main purpose of an incubator in laboratories?

To provide proper conditions for growth and maintenance of microorganisms (A) Signup and view all the answers

What does inoculation involve in laboratory practices?

Introducing microorganisms into a culture medium (B) Signup and view all the answers

What does aseptic technique aim to prevent?

Contamination from pathogens (C) Signup and view all the answers

Which of the following is NOT an application of incubators mentioned in the text?

Radiation sterilization (C) Signup and view all the answers