WorksheetsChapter 18 Microbiology
Total questions: 20
Worksheet time: 3mins
___________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
(a) 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.
What is the shape of the following; Cocci are reproduce by dividing into two. Cocci that form chains as they divide are called streptococci. Examples of infections caused by streptococci include pharyngitis (a severe sore throat commonly known as “strep throat”), tonsillitis, pneumonia, and endocarditis. Cocci that form irregular groups or clusters are called staphylococci. Examples of infections caused by staphylococci include boils and other skin infections, endocarditis, and pneumonia (F
Rod Shaped
Spiral Shaped
Spherical Shaped
What bacterial disease presents a greater health risk for healthcare workers.
HIV
Tuberculosis
(a) convert normal protein molecules into dangerous ones simply by causing the normal ones to change their shape. Therefore these are a new and separate class, different from bacteria, fungi, viruses, and all other known pathogens.
(a) disease is a global disease outbreak. This occurs when a new virus or disease emerges for which people have little or no immunity and for which no vaccine is available. The disease spreads easily from person to person, causes serious illness, and can sweep across the country and around the world in a very short time. In addition to illness and death, an especially severe influenza pandemic may cause severe disruption resulting from school and business closings and interruption of public transportation and food services.
infection is a blood-borne viral disease in which the body’s immune system breaks down. Acquired immunodeficiency syndrome (AIDS) is caused by this condition. When this enters the body, it infects special T cells and slowly kills them. T cells have special receptors on their surfaces and are primarily responsible for immunity. As more and more T cells die, the body’s ability to fight infection weakens.
Human immunodeficiency virus (HIV)
Tuberculosis
Which of the following diseases can be prevented by immunization?
Hepatitis B
Hepatitis C
Hepatitis E
None of the above
Which of the following diseases infects T cells?
Tuberculosis
Tetanus
HIV
Syphilis
HIV infects cells known as CD4 cells, and hepatitis virus infects only liver cells because of
Diversity
Specificity
Singularity
Latency
Which type of microorganism causes chickenpox, shingles, measles, and herpes?
Herpesvirus
Hepatitis A
HIV
Hepatitis B
Which of the following diseases presents the highest risk to dental personnel?
Hepatitis A
Hepatitis B
Hepatitis C
Hepatitis D
