Microlab Midterm - Exercise #2

Lakukan tugas rumah & ujian kamu dengan baik sekarang menggunakan Quizwiz!

How do you distinguish true motility from Brownian movement or motion of the fluid?

- Brownian: Vibration - True motility: point a to point b

Why are microorganisms hard to see in wet preparations?

Because they are transparent

What is the wet mount technique?

Draw circle Drop the slide on water

Which infusion had the most bacteria and why?

Hay infusion; hay is a nutrient and a microorganism

What is Brownian movement?

Not actual movement, vibration of the cells

Why is petroleum jelly used in the hanging-drop procedure?

Prevents the evaporation of suspended fluid

A wet mount may be used for quick examination of fecal samples. Is this most useful for identifying protozoa or bacteria parasites?

Protozoa - Bacteria parasites are clear and too small to observe under a microscope

What are aseptic techniques used for?

Removal of unwanted microorganisms

What is flaming used for?

Sterilization

What is a microbiome?

The environment of a microorganism

Why isn't the oil immersion lens used in the hanging-drop procedure?

Too much light refraction

What is an inoculating loop used for?

Transfer of bacteria

What is true movement?

When a cell moves from point a to point b

What is the advantage of the hanging-drop procedure over the wet mount?

a hanging drop will allow you to easily observe motility and larger microbes


Set pelajaran terkait

second set of quick book questions

View Set

Ch 8: Developing New Products and Managing the Product Life Cycle

View Set

Chapter 5: means of egress study guide ?s

View Set

Conjunciones de proposito, contingencia, tiempo

View Set

Chemistry Section 1.3: Review Questions

View Set

RIM_07_Privacy and Security in RIM (Class)

View Set

Personal and Family Finance- Chapter 3

View Set

MAN 3303 Midterm Review (Ch. 1 - 3)

View Set

Nursing Management: Patients With Complications From Heart Disease

View Set

Immune and Hematologic Disorders

View Set