Podcast
Questions and Answers
What is the purpose of heating food to boiling point and sealing it into a can?
What is the purpose of heating food to boiling point and sealing it into a can?
To kill microorganisms in the food and prevent the entry of new organisms from the air.
What is the difference between antiseptics and disinfectants?
What is the difference between antiseptics and disinfectants?
Antiseptics are applied to living tissues to kill microbes, while disinfectants are applied to inanimate objects to kill microbes.
Explain how antibiotics work to treat bacterial infections.
Explain how antibiotics work to treat bacterial infections.
Antibiotics can interrupt the metabolic pathways of bacteria causing them to die, or weaken the cell walls of bacteria leading to their burst.
What is the purpose of using disinfection in controlling microorganisms?
What is the purpose of using disinfection in controlling microorganisms?
Give an example of a chemical agent used as an antiseptic.
Give an example of a chemical agent used as an antiseptic.
How do antiseptics prevent infection?
How do antiseptics prevent infection?
What are the symptoms of leptospirosis caused by Leptospira spirochaetes?
What are the symptoms of leptospirosis caused by Leptospira spirochaetes?
What type of immunity involves antibodies produced from a natural infection?
What type of immunity involves antibodies produced from a natural infection?
Which blood group is considered the universal donor?
Which blood group is considered the universal donor?
How can one prevent leptospirosis infection?
How can one prevent leptospirosis infection?
What is the method of sterilization that involves placing objects in boiling water?
What is the method of sterilization that involves placing objects in boiling water?
What are the common symptoms of gastroenteritis caused by rotaviruses, Salmonella, E.Coli, and Giardia?
What are the common symptoms of gastroenteritis caused by rotaviruses, Salmonella, E.Coli, and Giardia?
How can one prevent gastroenteritis infection?
How can one prevent gastroenteritis infection?
How is natural passive immunity passed on to babies?
How is natural passive immunity passed on to babies?
Which type of immunity involves antibodies produced by a vaccine?
Which type of immunity involves antibodies produced by a vaccine?
What are the symptoms of dengue fever caused by the Flavivirus transmitted by Aedes aegypti mosquitoes?
What are the symptoms of dengue fever caused by the Flavivirus transmitted by Aedes aegypti mosquitoes?
What is the blood group compatibility for a recipient with blood group AB?
What is the blood group compatibility for a recipient with blood group AB?
How can one prevent dengue fever infection?
How can one prevent dengue fever infection?
What is the role of biological control in maintaining environmental sanitation?
What is the role of biological control in maintaining environmental sanitation?
List four ways in which a pathogen can enter the body.
List four ways in which a pathogen can enter the body.
Differentiate between a drug and a medicine.
Differentiate between a drug and a medicine.
Define drug abuse and drug dependence.
Define drug abuse and drug dependence.
Explain the role of prescriptive drugs in disease prevention or cure.
Explain the role of prescriptive drugs in disease prevention or cure.
What is the classification of addictive drugs called stimulants?
What is the classification of addictive drugs called stimulants?
How do bacteria and algae in water polluted by fertilizers affect the oxygen supply?
How do bacteria and algae in water polluted by fertilizers affect the oxygen supply?
What is the process by which toxic chemicals from pesticides build up in the bodies of organisms and are carried up through the food chain known as?
What is the process by which toxic chemicals from pesticides build up in the bodies of organisms and are carried up through the food chain known as?
What happens when rainwater falls on the land and runs off into the sea?
What happens when rainwater falls on the land and runs off into the sea?
What method of water purification involves using chlorine or iodine to kill bacteria and destroy viruses?
What method of water purification involves using chlorine or iodine to kill bacteria and destroy viruses?
How does the sun contribute to water purification when using a plastic bottle?
How does the sun contribute to water purification when using a plastic bottle?
What role does evaporation play in the water cycle?
What role does evaporation play in the water cycle?
