1.
The one-celled microorganisms, also known as germs or microbes, are:
Correct Answer
C. Bacteria
Explanation
Bacteria are the one-celled microorganisms commonly known as germs or microbes. They are single-celled organisms that can be found almost everywhere on Earth. Bacteria can be both harmful and beneficial to humans. Some bacteria cause diseases, while others play important roles in processes such as digestion and nutrient cycling. They are distinct from viruses, fungi, and cilia, which are different types of microorganisms with their own characteristics and functions.
2.
Parasites are types of:
Correct Answer
E. None of the Above
Explanation
Parasites are distinct organisms that live on or in a host organism and get their food from or at the expense of their host. They can be protozoa, helminths (worms), or ectoparasites (like lice and ticks). While they can cause diseases, they are not classified as diseases themselves, nor are they pathogenic viruses or bacteria (pathogenic or nonpathogenic).
3.
Bacteria that cause disease are called:
Correct Answer
C. Pathogenic
Explanation
Bacteria that cause disease are called pathogenic because they have the ability to invade and harm the host organism, leading to the development of various illnesses. Pathogenic bacteria can produce toxins or directly damage tissues, disrupting normal bodily functions and causing symptoms of disease. It is important to distinguish pathogenic bacteria from nonpathogenic bacteria, which do not cause disease, and other microorganisms such as protozoa and saprophytes, which have different roles and interactions with their environment.
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 tissue. 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 infections and diseases. Acidophilus and saprophytes are not typically associated with causing diseases, making pathogenic bacteria the most likely cause.
5.
The technical term for bacteria that live on the dead matter is:
Correct Answer
C. SapropHytes
Explanation
The correct term for bacteria that live on dead matter is saprophytes. Saprophytes are organisms that obtain their nutrients by decomposing dead organic matter. They play an important role in recycling nutrients and breaking down dead organisms. Parasites, on the other hand, are organisms that live on or in another organism and obtain their nutrients at the expense of the host. Viruses are infectious agents that cannot live independently and require a host cell to reproduce. Flagella are whip-like structures that some bacteria use for movement.
6.
The spirilla bacteria Treponema pallida causes:
Correct Answer
A. SypHilis
Explanation
Treponema pallida is a type of bacteria known to cause syphilis, a sexually transmitted infection. It is transmitted through sexual contact or from an infected mother to her unborn child. Syphilis can cause a wide range of symptoms, including sores, rashes, fever, and fatigue. If left untreated, it can lead to serious complications such as damage to the heart, brain, and other organs. Therefore, the correct answer is syphilis.
7.
The type of bacteria called cocci have a:
Correct Answer
B. Round shape
Explanation
Cocci are a type of bacteria that are spherical or round in shape. This shape allows them to easily divide and multiply, as well as attach to surfaces. The round shape also helps them resist pressure and damage from the external environment.
8.
The type of bacteria that has a rod shape is called:
Correct Answer
D. Bacilli
Explanation
The correct answer is bacilli. Bacilli are a type of bacteria that have a rod shape. They are characterized by their cylindrical or elongated shape, which can be straight or slightly curved. Bacilli can be found in various environments, including soil, water, and the human body. They can cause a range of diseases, including tuberculosis and anthrax.
9.
Pus-forming bacteria that cause strep throat and blood poisoning are:
Correct Answer
A. Streptococci
Explanation
Streptococci are pus-forming bacteria that can cause strep throat and blood poisoning. They are responsible for infections such as tonsillitis, cellulitis, and septicemia. Streptococci are spherical-shaped bacteria that grow in chains or pairs. They are commonly found in the throat and on the skin. These bacteria can release toxins that damage tissues and cause inflammation. Streptococci can be treated with antibiotics, but some strains have become resistant to certain drugs. It is important to identify and treat streptococcal infections promptly to prevent complications and the spread of infection.
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. This shape allows them to move efficiently in liquid environments, such as water or mucus. Staphylococci are spherical bacteria that form clusters, diplococci are bacteria that occur in pairs, and bacilli are rod-shaped bacteria. Therefore, the correct answer is spirilla.
11.
In California in 2000, a normally harmless bacteria that caused infections in over 100 pedicure clients was:
Correct Answer
D. Mycobacterium fortuitum furunculosis
Explanation
In California in 2000, a normally harmless bacteria that caused infections in over 100 pedicure clients was Mycobacterium fortuitum furunculosis. This bacteria is known to cause skin infections and is commonly found in water and soil. It can enter the body through cuts or wounds and cause painful, pus-filled boils called furuncles. In this case, it likely contaminated the pedicure equipment or water used during the pedicures, 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 spherical bacteria that lack flagella or other structures for locomotion. They typically rely on external factors such as air or liquid currents to move. Unlike other bacteria, cocci do not undergo mitosis, a process of cell division, but instead reproduce through binary fission, where the parent cell divides into two identical daughter cells. While some cocci can be pathogenic and cause infections, the statement in the question suggests that cocci rarely exhibit self-movement, which is a characteristic feature of these bacteria.
13.
Certain bacteria move about with the help of hair-like extensions called:
Correct Answer
D. Flagella
Explanation
Flagella are hair-like extensions found in certain bacteria that enable them to move. These whip-like structures are used by bacteria for locomotion, allowing them to swim or move towards or away from certain stimuli. Flagella are composed of protein and are attached to the cell membrane of bacteria. They rotate in a propeller-like motion, propelling the bacteria through their environment. This enables bacteria to explore their surroundings, find nutrients, and avoid 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, a bacterial cell replicates its DNA 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
During their inactive stage, certain bacteria form outer coverings called spores. Spores are a protective mechanism that allows the bacteria to survive in unfavorable conditions such as extreme temperatures, lack of nutrients, or exposure to harmful chemicals. These spores are highly resistant and can remain dormant for extended periods until conditions become favorable again, at which point they can germinate and resume their normal growth and reproduction. Spore formation is a crucial survival strategy for bacteria, enabling them to persist in harsh environments and ensuring their long-term survival.
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 or indirect contact with an infected person or their bodily fluids. Examples of communicable diseases include the common cold, influenza, and sexually transmitted infections. Occupational refers to diseases related to a person's occupation or workplace, chronic refers to long-lasting or persistent diseases, and congenital refers to diseases that are present at birth.
17.
A typical example of a general infection is:
Correct Answer
C. A pimple
Explanation
A pimple is a typical example of a general infection because it is a localized infection that occurs when bacteria, dead skin cells, and oil clog the hair follicles on the skin. This leads to inflammation, redness, and the formation of a pustule. While an epidemic refers to the widespread occurrence of a disease in a particular population, syphilis is a specific sexually transmitted infection, and a skin lesion can refer to various abnormalities on the skin.
18.
A sign of bacterial infection is:
Correct Answer
A. Pus
Explanation
Pus is a thick, yellowish substance that is formed as a result of the body's immune response to bacterial infection. It consists of dead white blood cells, bacteria, and tissue debris. The presence of pus is a clear indication of an ongoing bacterial infection, as it is the body's way of containing and eliminating the invading bacteria. Bleeding, a cold, and parasites are not necessarily indicative of bacterial infection, making pus the correct answer.
19.
Diseases caused by viruses include:
Correct Answer
A. Measles and hepatitis
Explanation
The correct answer is measles and hepatitis. Measles and hepatitis are both diseases caused by viruses. Measles is caused by the measles virus, which is highly contagious and spreads through respiratory droplets. It can cause symptoms such as fever, cough, runny nose, and a characteristic rash. Hepatitis is a viral infection that affects the liver and can be caused by different types of viruses, including hepatitis A, B, C, D, and E. It can cause symptoms such as fatigue, jaundice, abdominal pain, and liver damage.
20.
Penetrating cells and becoming part of them is characteristic of:
Correct Answer
C. Viruses
Explanation
Viruses have the ability to penetrate cells and incorporate their genetic material into the host cell's DNA. They cannot replicate or carry out metabolic functions on their own, so they rely on the host cell's machinery to reproduce. This characteristic distinguishes viruses from bacteria, parasites, and fungi, which have different mechanisms of interaction with host cells. Bacteria can invade cells but do not become part of them, parasites live in or on host organisms but do not incorporate themselves into cells, and fungi typically grow on or in host organisms without becoming an integral part of the cells.
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 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 fatigue, jaundice, abdominal pain, and liver dysfunction. The kidneys, stomach, and heart are not directly involved in hepatitis, making the liver the correct answer.
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 caused by the human immunodeficiency virus (HIV) that attacks and weakens the immune system. As the immune system becomes compromised, the body becomes more susceptible to infections, cancers, and other diseases. AIDS is a chronic and life-threatening condition that can lead to severe illness and death if not properly managed.
23.
Acquired Immune Deficiency Syndrome (AIDS) is caused by:
Correct Answer
D. The HIV virus
Explanation
AIDS is caused by the HIV virus. HIV stands for Human Immunodeficiency Virus, which attacks the immune system and weakens it over time. This makes individuals more susceptible to infections and diseases. Unlike the herpes virus, contaminated food, or poor personal hygiene, the HIV virus specifically targets and damages the immune system, leading to the development of AIDS.
24.
The HIV virus is not transmitted:
Correct Answer
B. By kissing or hugging
Explanation
HIV virus is not transmitted through kissing or hugging because it is primarily spread through specific body fluids such as blood, semen, vaginal fluids, and breast milk. These fluids need to come into contact with a mucous membrane or damaged tissue for transmission to occur. Kissing and hugging do not involve the exchange of these fluids, making it a safe activity in terms of HIV transmission.
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 broken skin provides an opening or a pathway for these microorganisms to penetrate the body's protective barrier. When the skin is broken, whether it is due to a cut, scrape, or wound, bacteria and viruses can easily enter and cause infections. Therefore, broken skin is susceptible to bacterial and viral invasion compared to dry, oily, or moist skin.
26.
Fungi, or vegetable parasites, cause contagious diseases such as:
Correct Answer
B. Ringworm
Explanation
Fungi are known to cause contagious diseases such as ringworm. Ringworm is a common fungal infection of the skin that is highly contagious and can be transmitted through direct contact with an infected person or animal, or through contact with contaminated objects or surfaces. It is characterized by a ring-shaped rash that is itchy and can appear on various parts of the body. Treatment typically involves antifungal medications to eliminate the infection.
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. This is because only a qualified medical professional can accurately diagnose the disease or condition and provide appropriate treatment. Sanitizing and disinfecting the client or giving medications without proper diagnosis can be ineffective or even harmful. Therefore, it is important to involve a physician to ensure the client receives the necessary medical attention and appropriate treatment.
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 against infections. It is a defense mechanism that helps protect the body from harmful pathogens such as bacteria, viruses, and parasites. Immunity can be acquired naturally through exposure to infections or artificially through immunization. Antibiotics, on the other hand, are medications used to treat bacterial infections, but they do not enhance the body's immune response. The immune system is the complex network of cells, tissues, and organs that work together to defend the body against infections. Therefore, the correct answer is infection, as immunity helps the body resist and fight against infections.
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 contaminated. This means that they may have harmful microorganisms or substances present on them, even if they are not visibly dirty. It is important to regularly clean and disinfect these surfaces to minimize 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, where all microorganisms are killed or removed. Disinfection is the process of reducing the number of microorganisms to a safe level. Sanitation refers to the cleaning and maintenance of a clean environment to prevent the spread of disease-causing microorganisms. This order of decontamination levels ensures the most effective removal or killing of microorganisms to maintain a safe and clean environment.
31.
Only one level of decontamination, sterilization, is capable of killing:
Correct Answer
C. Bacterial spores
Explanation
Sterilization is the process of eliminating all forms of microbial life, including bacterial spores, which are the most resistant form of microorganisms. This process ensures that no living organisms, including bacteria and viruses, are present in the sterilized environment. Therefore, the correct answer is bacterial spores, as sterilization is the only method capable of killing them.
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 the elimination of all microorganisms, including bacteria, viruses, and fungi. This process is essential to prevent the transmission of infections and maintain a sterile environment during surgeries and dental procedures. Sterilization involves using various methods such as heat, chemicals, or radiation to kill or remove all forms of microbial life on the tools, ensuring they are completely free from any potential pathogens.
33.
Disinfection may be used on:
Correct Answer
D. Nonporous surfaces
Explanation
Disinfection is a process that eliminates or reduces the number of microorganisms on a surface. Nonporous surfaces are those that do not have pores or tiny openings, making it difficult for microorganisms to penetrate and survive. Therefore, disinfection is commonly used on nonporous surfaces to effectively kill or remove any harmful microorganisms present. This ensures a clean and safe environment by reducing the risk of infection or transmission of diseases.
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. Disinfectants are primarily used to kill germs and bacteria on surfaces, such as shampoo bowls and manicure implements, or on tools like haircutting tools. However, when applied directly to the skin, hair, or nails, disinfectants can be harmful and should be avoided. It is important to use appropriate products specifically designed for personal care and hygiene purposes.
35.
Each individual state and the _______must approve all disinfectants.
Correct Answer
D. EPA
Explanation
The EPA (Environmental Protection Agency) is responsible for regulating and approving disinfectants in the United States. As a federal agency, it works alongside individual states to ensure that disinfectants meet safety and efficacy standards. The FDA (Food and Drug Administration) primarily regulates disinfectants used on medical devices and drugs, while the MSDS (Material Safety Data Sheet) is a document that provides information on the safe handling and use of chemicals. OSHA (Occupational Safety and Health Administration) focuses on workplace safety and does not have direct authority over disinfectant approval. Therefore, the EPA is the most appropriate entity to approve disinfectants.
36.
A Material Safety Data Sheet on every product used in the cosmetology school is required by:
Correct Answer
C. Federal law
Explanation
The requirement for a Material Safety Data Sheet (MSDS) on every product used in a cosmetology school is mandated by federal law. This law ensures that the school follows safety regulations and provides necessary information about the potential hazards, handling, and storage of the products. State laws and school regulations may also have additional requirements, but the federal law is the primary authority for this specific requirement. The statement about most instructors is not relevant to the requirement of MSDS and can be disregarded.
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 important information about a product, including its storage requirements. This information is crucial for ensuring the safe handling and storage of the product, as it outlines the specific conditions and precautions that need to be taken to prevent any potential hazards or accidents. By following the storage requirements provided in the MSDS, users can ensure the product's integrity and prevent any potential risks associated with improper storage. The other options listed in the question, such as other uses of the product, other suppliers, and resale value, are not typically included in an MSDS.
38.
The government agency that regulates and enforces safety and health standards in the workplace is:
Correct Answer
B. OSHA
Explanation
OSHA, or 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 working environment for their employees by setting and enforcing standards, conducting inspections, and providing training and education. This agency plays a crucial role in preventing workplace accidents, injuries, and illnesses, and promoting overall worker safety.
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
To be considered "Formulated for Hospitals and Health Care Facilities," a disinfectant must be effective against various types of microorganisms, including viruses. Virucidal means that the disinfectant is capable of killing or inactivating viruses. This is crucial in healthcare settings where there is a high risk of viral infections spreading. The other options, such as being inexpensive or easy to dilute, may be desirable qualities in a disinfectant, but they are not specific requirements for it to be formulated for hospitals and healthcare facilities. Pneumonicidal is not a recognized term in the context of disinfectants.
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 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 HIV and hepatitis B virus (HVB). Using a disinfectant that is effective against these viruses helps to prevent the transmission of these diseases and ensures the safety of both the clients and the salon 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 to ensure the safety and hygiene of the client. Discarding the item is necessary to prevent the spread of infections or diseases that may be present on the item. Disinfecting alone may not be sufficient in some cases, so it is important to dispose of the item properly to avoid any potential risks to the client's health.
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. This is because disinfectants are most effective when used on surfaces that have been pre-cleaned. Cleaning removes any visible dirt, debris, or organic matter from the implements, allowing the disinfectant to work more efficiently in killing bacteria, viruses, and other pathogens. Therefore, soaking the implements in disinfectant after cleaning ensures that they are properly sanitized and ready for use on a new client or stored in a clean container.
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 effectively clean and disinfect tools and equipment. Therefore, it is important to use them with an effective disinfectant. This helps to kill bacteria, viruses, and other pathogens that may be present on the tools, ensuring a clean and safe environment for both the salon staff and clients. Using sodium hypochlorite, 70% isopropyl alcohol, or an effective astringent alone may not provide the necessary level of disinfection required in a salon setting.
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. Quats, or quaternary ammonium compounds, are a type of disinfectant commonly used in healthcare settings. They are effective against a wide range of microorganisms, including bacteria, viruses, and fungi. The recommended immersion time of 10 to 15 minutes ensures that enough contact time is provided for the quats to effectively kill the microorganisms 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 highly effective disinfectants. They are commonly used for sanitizing metal implements. Phenols have strong antimicrobial properties that make them suitable for killing bacteria and other harmful microorganisms on metal surfaces. This makes them an ideal choice for disinfecting tools and equipment used in medical, laboratory, or industrial settings.
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 certain limitations. Alcohol has a limited spectrum of antimicrobial activity and may not be effective against certain types of pathogens. Bleach, on the other hand, can be corrosive and damaging to certain surfaces. Additionally, there are more effective and specialized disinfectants available in the market that have been proven to be more efficient in killing a wide range of pathogens. Therefore, alcohol and bleach are no longer widely used as disinfectants in comparison to other EPA-registered disinfectants.
47.
For disinfection of implements, states requiring hospital disinfection do not allow the use of:
Correct Answer
C. Alcohol
Explanation
Alcohol is not allowed for disinfection of implements in states that require hospital disinfection. This is because alcohol is not as effective as other disinfectants in killing certain types of microorganisms. EPA-registered disinfectants, quats, and phenols are all approved and recommended for disinfection purposes.
48.
Sodium hypochlorite is more commonly known as:
Correct Answer
D. Bleach
Explanation
Sodium hypochlorite is commonly known as bleach because it is a chemical compound that is widely used as a disinfectant and cleaning agent. Bleach is a strong oxidizing agent that is effective in killing bacteria, viruses, and fungi. It is commonly used for household cleaning, laundry, and water treatment. Sodium hypochlorite is the active ingredient in bleach, and it is responsible for its strong bleaching and disinfecting properties. Therefore, the correct answer is bleach.
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 was commonly used in the past as a disinfectant in salons. However, it is no longer considered safe for salon use due to its potential health hazards. Formalin is a solution of formaldehyde gas dissolved in water, and it can cause respiratory issues, skin irritation, and other health problems. Therefore, formalin is no longer recommended or approved for use in salons as a disinfectant.
50.
Tongs, gloved hands, or a draining basket should be used to remove implements from:
Correct Answer
B. Disinfectants
Explanation
Disinfectants are used to kill germs and bacteria, so it is important to avoid direct contact with them to prevent any contamination. Tongs, gloved hands, or a draining basket should be used to remove implements from disinfectants to maintain cleanliness and hygiene. Using clean towels, storage containers, or soapy water does not pose the same risk of contamination, so specialized tools are not necessary for their removal.