Chapter 18 Microbiology

___________is the study of microorganisms (micro- means microscopically small, and bio- means living organisms). Because of their microscopic size, the existence of microorganisms usually goes unnoticed unless they cause illness. Most people experience common colds in the winter months, and many others experience life-threatening illnesses caused by microorganisms.

• Microorganismology

• Mircobugology

• Microbiology

Which of the Hepatitis Viruses can be spread through Fecal- Oral Transmission

• Hepatitis A

• Hepatitis B

• Hepatitis C

• Hepatitis D

• Hepatitis E

Herpes simplex virus ___________ is a viral infection that causes recurrent sores on lips.

• Herpes Type 1

• Herpes Type 2

• Cytomegalovirus

• Epstein-Barr virus

What is the shape of the following; Bacilli (singular, bacillus ). Tuberculosis is a disease that is caused by a bacillus.

• Rod Shaped

• Spiral Shaped

• Spherical Shaped

_______________are a variety of bacteria that require oxygen to grow.

• Aerobes

• Anaerobes

• Facultative Anaerobes

Anaerobes are?

• are a variety of bacteria that require oxygen to grow.

• are organisms that can grow in the presence or the absence of oxygen.

• are bacteria that grow in the absence of oxygen and are destroyed by oxygen.

• none of the above

What is the shape of the following; Spirochetes are _____________ shaped bacteria that have flexible cell walls and are capable of movement. Lyme disease, which is transmitted to humans through the bite of an infected deer tick, is caused by a spirochete. Syphilis is also caused by a spirochete (see later discussion in the section about syphilis under Bacterial Diseases).

• Rod Shaped

• Spiral Shaped

• Spherical Shaped

_____________ are organisms that can grow in the presence or the absence of oxygen.

• Aerobes

• Anaerobes

• Facultative Anaerobes

Who is known as the " Father of Microbiology"

• John Tyndall

• Robert Koch

• Antony van Leeuwenhoek

• Louis Pasteur

• Aristotle

______________________ represent the most resistant form of life known. They can survive extremes of heat and dryness and even the presence of disinfectants and radiation. Because of this incredible resistance, harmless spores are used to test the effectiveness of techniques used to sterilize dental instruments.