& Answers (Grade A+)
When should you wash your hands -
correct answer ✅Before and after lab
ubiquitous -
correct answer ✅present or existing everywhere
Why are microbes important? -
correct answer ✅-Cause disease
- be used to produce antibiotics and other pharmaceuticals
- can be used to produce wide range of food products
- can be used in industry
- are important in nutrient cycling
What does TSA stand for? -
correct answer ✅Tryptic Soy Agar
What is a TSA plate used for? -
correct answer ✅providing enough nutrients to allow for a wide
variety of microorganisms (bacteria) to grow
,Micro Lab Test 1 TTU Exam Questions
& Answers (Grade A+)
How are TSA plates stored? -
correct answer ✅TSA plates are stored upside down
What does PDA stand for? -
correct answer ✅potato dextrose agar
What are PDA plates used for? -
correct answer ✅is a general purpose medium for yeasts and
molds that can be supplemented with acid or antibiotics to inhibit
bacterial growth. (FUNGI)
How is a PDA stored? -
correct answer ✅PDA plates are stored right-side up
What does BHI stand for? -
correct answer ✅brain heart infusion
What is BHI used for? -
correct answer ✅to demonstrate that microorganisms reside on
the body's surface.
, Micro Lab Test 1 TTU Exam Questions
& Answers (Grade A+)
How do you divide the BHI plate? -
correct answer ✅you divide it into two equal sections
define Microbiome -
correct answer ✅Organisms that are apart of your body's natural
bacteria level
Objectives -
correct answer ✅lenses closest to the specimen on the
microscope slide
Nosepiece -
correct answer ✅Holds the objectives and can be rotated to
change the magnification (10x, 40x, 100x)
Which objective can be used in immersion oil? -
correct answer ✅100x
field of view -
correct answer ✅The area visible through the microscope
eyepiece