1.
The one-celled microorganisms also known as germs or microbes are:
Correct Answer
C. Bacteria
Explanation
Bacteria are one-celled microorganisms that are commonly known as germs or microbes. They are different from viruses and fungi. Bacteria are single-celled organisms that can be found in various environments and can have both beneficial and harmful effects on living organisms. They can cause diseases, but they can also be used in various applications such as medicine, agriculture, and industry. Viruses, on the other hand, are not considered living organisms as they cannot reproduce on their own and require a host cell to replicate. Fungi are a separate group of organisms that include molds, yeasts, and mushrooms. Cilia, on the other hand, are hair-like structures found on the surface of certain cells that help with movement.
2.
Parasites are types of:
Correct Answer
D. Pathogenic bacteria
Explanation
Parasites are organisms that live in or on another organism (host) and derive nutrients from it, often causing harm to the host. While parasites can include various types of organisms such as viruses, bacteria, fungi, and protozoa, the correct answer in this case is "pathogenic bacteria." Pathogenic bacteria are bacteria that can cause disease in their host by producing toxins, invading tissues, or disrupting normal bodily functions. These bacteria can cause a wide range of infections and illnesses in humans and animals.
3.
Bacteria that cause disease are called:
Correct Answer
C. Pathogenic
Explanation
Bacteria that cause disease are called pathogenic. Pathogenic bacteria have the ability to invade and multiply within a host organism, leading to the development of various diseases or infections. They can produce toxins or directly damage the host's tissues, resulting in harmful effects on the body. This distinguishes them from nonpathogenic bacteria, which do not cause disease, and other options such as protozoa and saprophytes, which are not specifically related to disease-causing bacteria.
4.
Disease in plant or animal tissue is caused by:
Correct Answer
C. Pathogenic bacteria
Explanation
Pathogenic bacteria are responsible for causing diseases in plant or animal tissues. Unlike nonpathogenic bacteria, which do not cause harm, pathogenic bacteria have the ability to invade and multiply within the host's tissues, leading to various diseases. Acidophilus refers to a type of bacteria that is commonly found in the human body and has beneficial effects, while saprophytes are organisms that obtain nutrients from dead or decaying organic matter. Therefore, neither acidophilus nor saprophytes are the correct answer for the cause of diseases in plant or animal tissue.
5.
Technical term for bacteria that live on dead matter is:
Correct Answer
C. SapropHytes
Explanation
The technical term for bacteria that live on dead matter is saprophytes. Saprophytes are organisms that obtain their nutrients by decomposing organic matter. They play a crucial role in the ecosystem by breaking down dead organisms and recycling nutrients back into the environment. Unlike parasites, which rely on a living host for their survival, saprophytes thrive on non-living organic material. Viruses are not considered bacteria, and flagella are not specific to bacteria that live on dead matter.
6.
The spirilla bacteria Trepnema pallida causes:
Correct Answer
A. SypHilis
Explanation
Trepnema pallida is a type of spirilla bacteria that is known to cause syphilis. Syphilis is a sexually transmitted infection that can lead to various symptoms and complications if left untreated. It is characterized by the development of painless sores, rashes, and flu-like symptoms. The bacteria can be transmitted through sexual contact or from mother to child during pregnancy. Therefore, the correct answer for this question is syphilis.
7.
The type of bacteria called cocci have a:
Correct Answer
B. Round shape
Explanation
Cocci bacteria are known for their round shape. This shape is characterized by their ability to divide and reproduce in a manner that results in spherical or oval-shaped cells. The round shape of cocci bacteria allows them to easily multiply and form clusters or chains. This shape also helps them adapt and survive in various environments, as it provides them with a larger surface area-to-volume ratio, facilitating nutrient absorption and waste elimination.
8.
The type of bacteria that has a rod shape is called:
Correct Answer
D. Bacilli
Explanation
The correct answer is bacilli. Bacilli refers to a type of bacteria that has a rod shape. This shape is characteristic of bacilli bacteria, which are often found in chains or clusters. Diplococci, staphylococci, and spirilla are not rod-shaped bacteria, but rather refer to other shapes and arrangements of bacteria.
9.
Pus-forming bacteria that cause strep throat and blood poisoning are:
Correct Answer
A. Streptococci
Explanation
Streptococci are a type of pus-forming bacteria that can cause strep throat and blood poisoning. They are known for their ability to form chains or clusters, which is characteristic of streptococci. Bacilli are rod-shaped bacteria, staphylococci are bacteria that form clusters resembling grapes, and diplococci are bacteria that form pairs. Therefore, streptococci are the correct answer as they specifically match the description of the bacteria that cause strep throat and blood poisoning.
10.
The bacteria with a corkscrew or spiral shape are:
Correct Answer
B. Spirilla
Explanation
Spirilla are bacteria that have a corkscrew or spiral shape. They are characterized by their long, helical bodies, which allow them to move efficiently through liquid environments. This shape enables spirilla to have greater motility compared to other bacteria, such as staphylococci, diplococci, and bacilli, which have different shapes and movement mechanisms. Spirilla are commonly found in freshwater and marine environments and can be pathogenic or beneficial to humans depending on the species.
11.
In California in 2000, a normally harmless bacteria that cause infections in over 100 pedicure clients was:
Correct Answer
D. Treponema pallida
Explanation
In California in 2000, a normally harmless bacteria that caused infections in over 100 pedicure clients was Treponema pallida. Treponema pallida is the bacterium that causes syphilis, a sexually transmitted infection. In this case, it appears that the bacteria was transmitted through the pedicure process, leading to the infections in the clients.
12.
Cocci rarely:
Correct Answer
A. Show self-movement
Explanation
Cocci rarely show self-movement because they are typically spherical bacteria that lack flagella or other structures for motility. Instead, they rely on external factors such as air or fluid currents to move around.
13.
Certain bacteria move about with the help of hair like extensions called:
Correct Answer
D. Flagella
Explanation
Flagella are hair-like extensions that certain bacteria use for movement. These whip-like structures are located on the surface of the bacteria and enable them to propel themselves through their environment. Flagella are composed of a protein called flagellin and can be found in various arrangements, such as single or multiple flagella, depending on the species of bacteria. This movement mechanism allows bacteria to navigate towards favorable conditions or away from harmful substances.
14.
Mitosis is the process by which bacteria:
Correct Answer
A. Divide
Explanation
Mitosis is the process by which bacteria divide. During mitosis, the bacterial cell replicates its genetic material and then divides into two identical daughter cells. This allows bacteria to reproduce and increase their population.
15.
Certain bacteria, during their inactive stage, form outer coverings called:
Correct Answer
C. Spores
Explanation
Certain bacteria have the ability to form outer coverings called spores during their inactive stage. These spores are a protective mechanism that allows the bacteria to withstand harsh environmental conditions such as extreme temperatures, lack of nutrients, or exposure to disinfectants. Spores are highly resistant structures that can remain dormant for extended periods of time until conditions become favorable for the bacteria to grow and reproduce again.
16.
A disease that is transmitted from one person to another by contact is said to be:
Correct Answer
B. Communicable
Explanation
A disease that is transmitted from one person to another by contact is said to be communicable. This means that the disease can be spread through direct contact with an infected person, such as through physical touch or through contact with bodily fluids. It can also be transmitted indirectly through contact with contaminated objects or surfaces. Examples of communicable diseases include the common cold, influenza, and sexually transmitted infections.
17.
A typical example of a general infection is:
Correct Answer
C. SypHillis
Explanation
Syphilis is a typical example of a general infection. It is a sexually transmitted infection caused by the bacterium Treponema pallidum. Syphilis can affect various parts of the body and can progress through different stages if left untreated. It is considered a general infection because it can spread throughout the body and affect multiple organs and systems. Other options like an epidemic, a pimple, or a skin lesion do not represent general infections as they are either related to a specific area or a localized outbreak.
18.
A sign of bacterial infection is:
Correct Answer
A. Pus
Explanation
Pus is a thick, yellowish fluid that is typically produced as a response to bacterial infection. It is composed of dead white blood cells, bacteria, and tissue debris. The presence of pus indicates an immune response to an infection, as the body attempts to fight off the bacteria. Bleeding, a cold, and parasites are not specific signs of a bacterial infection.
19.
Diseases caused by viruses include:
Correct Answer
A. Measles and hepatitis
Explanation
Measles and hepatitis are both diseases caused by viruses. Measles is caused by the measles virus, while hepatitis can be caused by various viruses such as the hepatitis A, B, or C viruses. These viruses infect the body and cause inflammation and damage to specific organs, leading to the characteristic symptoms and complications associated with each disease.
20.
Penetrating cells and becoming part of them is characteristic of:
Correct Answer
C. Viruses
Explanation
Viruses are unique infectious agents that are capable of penetrating host cells and integrating their genetic material into the host's DNA. Unlike bacteria, which are single-celled organisms that can exist independently, viruses are not considered living organisms as they require a host cell to replicate. Parasites, on the other hand, are organisms that live in or on another organism and derive nutrients from their host. Fungi are multicellular organisms that obtain nutrients through absorption. Therefore, the characteristic of penetrating cells and becoming part of them is specific to viruses.
21.
Hepatitis is caused by a bloodborne virus and involves inflammation of the:
Correct Answer
A. Liver
Explanation
Hepatitis is a condition characterized by inflammation of the liver. It is commonly caused by a bloodborne virus, such as Hepatitis A, B, or C. The virus infects the liver, leading to inflammation and damage to the liver cells. This can result in symptoms such as jaundice, fatigue, abdominal pain, and loss of appetite. If left untreated, hepatitis can lead to serious complications, including liver cirrhosis and liver cancer. Therefore, it is important to identify and treat hepatitis early to prevent further damage to the liver.
22.
The disease that breaks down the body's immune system is known as:
Correct Answer
D. AIDS
Explanation
AIDS is the correct answer because it is a disease that weakens and destroys the body's immune system. It is caused by the human immunodeficiency virus (HIV) and can lead to severe illness and opportunistic infections. HIV attacks the immune system, specifically CD4 cells, which are crucial in fighting off infections. As the immune system becomes compromised, individuals with AIDS are more susceptible to various infections and diseases, making it difficult for the body to defend itself.
23.
Acquired Immune Deficiency Syndrome (AIDS) is caused by:
Correct Answer
D. The HIV virus
Explanation
Acquired Immune Deficiency Syndrome (AIDS) is caused by the HIV virus. HIV stands for Human Immunodeficiency Virus, which attacks the immune system and weakens the body's ability to fight off infections and diseases. AIDS is the final stage of HIV infection, characterized by a severely compromised immune system. Herpes virus, contaminated food, and poor personal hygiene do not directly cause AIDS.
24.
The HIV virus is not transmitted:
Correct Answer
B. By kissing or hugging
Explanation
The HIV virus is not transmitted by kissing or hugging because it is primarily spread through specific bodily fluids, such as blood, semen, vaginal fluids, and breast milk. The virus cannot be transmitted through casual contact like kissing or hugging, as it is not present in saliva or sweat in sufficient quantities to cause infection. However, it is important to note that other sexually transmitted infections (STIs) can be transmitted through kissing or close contact, so practicing safe behaviors is still recommended.
25.
One way in which bacteria and viruses can enter the body is through:
Correct Answer
C. Broken skin
Explanation
Bacteria and viruses can enter the body through broken skin because it creates an opening in the skin's protective barrier, allowing pathogens to penetrate and cause infection. When the skin is broken, whether it's due to a cut, scrape, or puncture, it becomes easier for microorganisms to access the bloodstream and tissues underneath. This is why it is important to keep any wounds clean and covered to prevent the entry of harmful bacteria and viruses.
26.
Fungi, or vegetable parasites, cause contagious diseases such as:
Correct Answer
B. Ringworm
Explanation
Fungi are organisms that can cause contagious diseases, and one of the examples is ringworm. Ringworm is a fungal infection that affects the skin, scalp, or nails. It is highly contagious and can be transmitted through direct contact with an infected person or animal, or by touching contaminated objects. The infection causes a characteristic ring-shaped rash on the skin, which is how it gets its name. Therefore, ringworm is a correct example of a contagious disease caused by fungi.
27.
Clients showing signs of a contagious disease or condition should be:
Correct Answer
C. Referred to a pHysician
Explanation
Clients showing signs of a contagious disease or condition should be referred to a physician because a physician is a medical professional who is trained and qualified to diagnose and treat illnesses. By referring the clients to a physician, they can receive proper medical attention and treatment, which is crucial in managing and containing contagious diseases. Sanitizing and disinfecting, giving medications, or attempting to diagnose and treat the clients without appropriate medical knowledge and expertise may not be effective or safe. Therefore, referring them to a physician is the most appropriate course of action.
28.
Immunity is the ability of the body to resist:
Correct Answer
D. Infection
Explanation
Immunity refers to the body's ability to resist or fight off infections. It is a defense mechanism that helps protect the body from harmful pathogens such as bacteria, viruses, and other microorganisms. When the immune system detects the presence of these pathogens, it initiates a response to eliminate them and prevent the development of infections. Therefore, the correct answer is infection.
29.
Surfaces such as tables, walls, doorknobs, or your hands, no matter how clean they look, are very likely:
Correct Answer
D. Contaminated
Explanation
Surfaces such as tables, walls, doorknobs, or your hands, no matter how clean they look, are very likely to be contaminated. This means that they may have harmful microorganisms or substances present on them, even if they are not visibly dirty. Therefore, it is important to regularly clean and disinfect these surfaces to reduce the risk of spreading infections or diseases.
30.
There are three main levels of decontamination:
Correct Answer
B. Sterilization, disinfection, sanitation
Explanation
The correct answer is "sterilization, disinfection, sanitation". Sterilization is the highest level of decontamination, which eliminates all forms of microbial life. Disinfection is the process of killing or inactivating most pathogenic microorganisms, but not necessarily all microbial forms. Sanitation refers to the reduction of microbial populations to a safe level, usually through cleaning and disinfection. This order of decontamination levels ensures the most thorough elimination of microorganisms, starting with sterilization as the most effective method.
31.
Only one level of decontamination, sterilization, is capable of killing:
Correct Answer
C. Bacterial spores
Explanation
Sterilization is the highest level of decontamination that can kill all forms of microbial life, including bacterial spores. Bacterial spores are highly resistant structures formed by certain bacteria as a survival mechanism. They can withstand extreme conditions and are difficult to kill using conventional methods. Therefore, sterilization is required to eliminate bacterial spores, along with other forms of bacteria and viruses.
32.
Surgeons and dentists are required to practice ___________with their tools.
Correct Answer
C. Sterilization
Explanation
Surgeons and dentists are required to practice sterilization with their tools in order to ensure that they are free from any microorganisms that could cause infection or disease. Sterilization is the process of completely eliminating all forms of life, including bacteria, viruses, and fungi, from an object or surface. This is crucial in medical settings to prevent the spread of infections and maintain a safe and sterile environment for patients. Rinsing, disinfection, and sanitation may not be sufficient to achieve the same level of cleanliness and safety as sterilization.
33.
Disinfection may be used on:
Correct Answer
D. Nonporous surfaces
Explanation
Disinfection is a process that involves killing or inactivating microorganisms on surfaces to prevent the spread of infection. Nonporous surfaces, such as glass, metal, or plastic, do not have tiny openings or pores that can harbor bacteria or viruses. Therefore, disinfection is effective on nonporous surfaces as it can easily eliminate any microorganisms present on them. However, disinfection may not be suitable for nail plates, wood, or skin as these surfaces can be porous and may require other methods, such as sterilization or cleaning, to effectively remove or kill microorganisms.
34.
Disinfectants are too strong to use on:
Correct Answer
C. Skin, hair, or nails
Explanation
Disinfectants are too strong to use on skin, hair, or nails because they can cause irritation, dryness, and damage to these delicate areas. Disinfectants are designed to kill bacteria and other microorganisms on hard surfaces, but they are not suitable for direct contact with the human body. Using disinfectants on skin, hair, or nails can strip away natural oils, disrupt the pH balance, and lead to various problems such as dryness, itching, and inflammation. It is important to use products specifically formulated for personal care and hygiene when it comes to skin, hair, and nails.
35.
Each individual state and the _______must approve all disinfectants.
Correct Answer
D. EPA
Explanation
The Environmental Protection Agency (EPA) is responsible for regulating and approving disinfectants. It ensures that these products meet safety and efficacy standards before they can be used by the public. Therefore, it is necessary for both individual states and the EPA to approve all disinfectants to ensure their effectiveness and safety.
36.
A Material Safety Data Sheet on every product used in the cosmetology school is required by:
Correct Answer
C. Federal law
Explanation
The correct answer is federal law. This is because federal law mandates that a Material Safety Data Sheet (MSDS) must be available for every product used in a cosmetology school. MSDS provides important information about the potential hazards, safe handling procedures, and emergency measures related to the product. It ensures the safety and well-being of students and staff in the cosmetology school, as well as compliance with federal regulations. State laws and school regulations may also require MSDS, but the requirement is primarily driven by federal law.
37.
An MSDS contains important information about a product, including:
Correct Answer
C. Storage requirements
Explanation
An MSDS (Material Safety Data Sheet) is a document that provides information about the potential hazards and safety precautions associated with a product. It includes details about the storage requirements to ensure the product's stability and prevent any potential risks such as fire, explosion, or degradation. This information is crucial for handling and storing the product safely to protect both individuals and the environment. The other options listed, such as other uses of the product, other suppliers, and resale value, are not typically included in an MSDS as they are not directly related to safety concerns.
38.
The government agency that regulates and enforces safety and health standards in the workplace is:
Correct Answer
B. OSHA
Explanation
OSHA, the Occupational Safety and Health Administration, is the government agency responsible for regulating and enforcing safety and health standards in the workplace. OSHA ensures that employers provide a safe and healthy work environment for their employees by setting and enforcing standards, conducting inspections, and providing training and education. The other options, FBI, EPA, and FDA, are not specifically focused on workplace safety and health regulations, making OSHA the correct answer.
39.
In order to be considered "Formulated for Hospitals and Health Care Facilities," a disinfectant must be pseudomonacidal, bactericidal, fungicidal, and:
Correct Answer
A. Virucidal
Explanation
In order to be considered "Formulated for Hospitals and Health Care Facilities," a disinfectant must be pseudomonacidal, bactericidal, fungicidal, and virucidal. This means that the disinfectant should be effective in killing pseudomonas bacteria, other bacteria, fungi, and viruses. Being virucidal is an essential characteristic for a disinfectant to be used in hospitals and healthcare facilities, as it ensures that it can effectively eliminate viruses which can be a major source of infections in these settings.
40.
An EPA-registered tuberculocidal disinfectant or one that kills the HVB and HIV virus is required by OSHA for implements that come into contact with:
Correct Answer
D. Blood or body fluids
Explanation
OSHA, the Occupational Safety and Health Administration, requires the use of an EPA-registered tuberculocidal disinfectant or one that kills the HVB and HIV virus for implements that come into contact with blood or body fluids. This is because blood and body fluids can potentially carry infectious diseases, including hepatitis B virus (HVB) and human immunodeficiency virus (HIV). Using a disinfectant that specifically targets these viruses helps to prevent the spread of infection and ensures a safe and hygienic environment for both clients and staff.
41.
Any item used to perform a salon service on a client must be disinfected or:
Correct Answer
A. Discarded
Explanation
Any item used to perform a salon service on a client must be disinfected or discarded. This is because using the same item on multiple clients without proper disinfection can lead to the spread of bacteria, viruses, and other pathogens. Discarding the item ensures that there is no risk of cross-contamination and helps maintain a clean and hygienic environment for both the stylist and the client.
42.
Implements must be thoroughly cleaned before they are:
Correct Answer
A. Soaked in disinfectant
Explanation
Implements must be thoroughly cleaned before they are soaked in disinfectant because disinfectants work most effectively on surfaces that are free of dirt, debris, and organic matter. Cleaning the implements first helps to remove any visible contaminants and reduce the microbial load on the surface. Soaking the implements in disinfectant afterwards ensures that any remaining microorganisms are killed, thereby reducing the risk of cross-contamination and infection when the implements are used on clients.
43.
To be effective in the salon, ultrasonic bath cleaners must be used with:
Correct Answer
B. An effective disinfectant
Explanation
Ultrasonic bath cleaners are used in salons to clean and disinfect various tools and instruments. Therefore, it is important to use them with an effective disinfectant. This ensures that the tools are thoroughly cleaned and any harmful bacteria or pathogens are killed, helping to maintain a clean and hygienic environment in the salon. Sodium hypochlorite is a type of disinfectant, but it may not be the most effective option for all salon tools. Isopropyl alcohol is commonly used as a disinfectant, but the concentration mentioned (70%) may not be strong enough for certain purposes. The use of an effective astringent may have other benefits in the salon, but it is not specifically required for the effectiveness of ultrasonic bath cleaners.
44.
An immersion time of 10 to 15 minutes is sufficient when disinfecting with:
Correct Answer
A. Quats
Explanation
An immersion time of 10 to 15 minutes is sufficient when disinfecting with quats because quats, or quaternary ammonium compounds, are effective disinfectants that can kill a wide range of microorganisms. They work by disrupting the cell membranes of bacteria, viruses, and fungi, leading to their destruction. The recommended immersion time ensures that enough contact time is provided for the quats to effectively kill the pathogens present on the surfaces being disinfected.
45.
Phenols in 5 percent solution are safe and extremely effective disinfectants used mostly for:
Correct Answer
A. Metal implements
Explanation
Phenols in a 5 percent solution are safe and effective disinfectants that are commonly used for sanitizing metal implements. This means that they can be used to clean and disinfect tools and equipment made of metal, such as surgical instruments or cooking utensils. Phenols have antimicrobial properties that make them highly effective in killing bacteria and other harmful microorganisms. They are not typically used for skin sanitization, blood spills, or disinfecting rubber and plastic materials.
46.
Alcohol and bleach are:
Correct Answer
A. No longer widely used as disinfectants
Explanation
Alcohol and bleach are no longer widely used as disinfectants because they have been found to have certain limitations. While they can effectively kill many types of bacteria and viruses, they may not be as effective against certain pathogens or spores. Additionally, alcohol can be flammable and may not have a long-lasting effect. Bleach, on the other hand, can be corrosive and may damage certain surfaces. As a result, other disinfectants that are more effective and safer for use have been developed and are now widely used.
47.
For disinfection of implements, states requiring hospital disinfection do not allow the use of:
Correct Answer
C. Alcohol
Explanation
States that require hospital disinfection do not allow the use of alcohol for disinfecting implements. This may be because alcohol is not considered as effective as other disinfectants in killing certain types of pathogens. Additionally, alcohol may not have a residual effect, meaning it does not provide long-lasting protection against pathogens. Therefore, these states may prefer the use of EPA-registered disinfectants, quats, or phenols, which are considered more effective and provide longer-lasting disinfection.
48.
Sodium hypochlorite is more commonly known as:
Correct Answer
D. Bleach
Explanation
Sodium hypochlorite is commonly known as bleach. Bleach is a chemical compound used for disinfection, cleaning, and laundry purposes. It is a strong oxidizing agent and has the ability to remove stains, whiten clothes, and kill bacteria and viruses. Sodium hypochlorite is the active ingredient in bleach, and it is widely used in households and industries for its powerful cleaning properties.
49.
A product that was used in the past as a disinfectant but is no longer considered safe for salon use is:
Correct Answer
A. Formalin
Explanation
Formalin is the correct answer because it was previously used as a disinfectant but is now deemed unsafe for salon use. Formalin, also known as formaldehyde solution, is a strong and potentially harmful chemical that can cause irritation, allergies, and even cancer. Due to its health risks, formalin is no longer recommended or considered safe for use in salons.
50.
Tongs, gloved hands, or a draining basket should be used to remove implements from:
Correct Answer
B. Disinfectants
Explanation
When removing implements from disinfectants, it is important to use tongs, gloved hands, or a draining basket. This is because disinfectants are often strong chemicals that can be harmful to the skin or cause irritation. Using these tools or protective gear helps to prevent direct contact with the disinfectant and minimize the risk of any potential harm.