1.
Bacteriology is the scientific study of:
Correct Answer
C. Bacteria
Explanation
Bacteriology is the scientific study of bacteria. It involves the identification, classification, and understanding of the structure, function, and behavior of bacteria. This field of study helps in the diagnosis, treatment, and prevention of bacterial diseases. Bacteriologists study the growth, reproduction, and interactions of bacteria, as well as their role in various ecosystems. They also research the development of antibiotics and other treatments to combat bacterial infections. Therefore, the correct answer is bacteria.
2.
Another term that means the same as germ or bacteria is:
Correct Answer
D. Microbe
Explanation
A microbe is a microscopic organism, such as bacteria or a virus, that can cause disease. It is a general term that encompasses various types of germs and bacteria. Lice and mites are specific types of parasites that infest the body or skin, while a parasite refers to an organism that lives off another organism. Therefore, the term "microbe" is the most appropriate synonym for germ or bacteria.
3.
Bacterial cells that are harmless and can even be beneficial to humans are called:
Correct Answer
D. Nonpathogenic bacteria
Explanation
Nonpathogenic bacteria refers to bacterial cells that do not cause harm to humans and can even have beneficial effects. Unlike pathogenic bacteria, which can cause diseases, nonpathogenic bacteria can coexist with humans without causing harm. They may play important roles in various bodily functions, such as aiding in digestion or producing essential nutrients. Therefore, nonpathogenic bacteria are considered harmless or even beneficial to humans.
4.
Nonpathogenic bacteria that live on dead matter are known as:
Correct Answer
C. SapropHytes
Explanation
Saprophytes are nonpathogenic bacteria that live on dead matter. They obtain their nutrients by decomposing organic material. These bacteria play an important role in the ecosystem by breaking down dead organisms and recycling nutrients back into the environment. Unlike parasites, which rely on living hosts for their survival, saprophytes thrive on decaying organic matter. Cocci and staphylococci, on the other hand, refer to the shape and arrangement of bacterial cells and are not specifically related to their ability to live on dead matter.
5.
Bacterial cells that may be harmful to the body are called:
Correct Answer
A. Pathogenic
Explanation
Pathogenic bacteria are those that can cause disease or harm to the body. They have the ability to invade and multiply in the host, leading to infection and illness. These bacteria can produce toxins or damage tissues, causing a range of symptoms and health problems. It is important to identify and treat pathogenic bacteria to prevent the spread of infection and to promote overall health and well-being.
6.
Pathogenic bacteria are responsible for all of the following EXCEPT:
Correct Answer
D. Benefiting the environment
Explanation
Pathogenic bacteria are microorganisms that cause diseases and infections in humans and other organisms. They do this by producing toxins that harm the host's cells and disrupt normal bodily functions. However, pathogenic bacteria do not benefit the environment. In fact, they can have detrimental effects on ecosystems and can even cause environmental pollution. Therefore, the correct answer is "benefiting the environment."
7.
A communicable disease refers to a disease that is:
Correct Answer
C. Spread from one person to another
Explanation
A communicable disease refers to a disease that is spread from one person to another. This means that the disease can be transmitted through various means such as direct contact, droplets, or contaminated objects. Examples of communicable diseases include the common cold, influenza, and COVID-19. It is important to take preventive measures, such as practicing good hygiene and getting vaccinated, to reduce the spread of communicable diseases.
8.
The common cold, hepatitis and measles are examples of:
Correct Answer
C. Communicable diseases
Explanation
The common cold, hepatitis, and measles are all examples of communicable diseases because they can be easily transmitted from one person to another through various means such as direct contact, respiratory droplets, or contaminated surfaces. These diseases can spread rapidly within a population, leading to widespread outbreaks. Unlike harmless or beneficial diseases, communicable diseases can cause illness and harm to individuals and can pose a significant public health concern.