MC1: What Is The Relationship Between Diseases And Medicine Flashcards
What is a drug?
A chemical used in order to treat or prevent an illness or disease.
Types of microbes?
Baceteria, viruses, protozoans and fungi
Why aren’t viruses considered as living?
They can’t reproduce
How do you consider something as living?
MR NC GREWW: movement, reproduction, nutricion, cells, growth, reponding to the world, exchange of gases, waste, water.
Example of useful microbes?
Good bacteria and fungi in yeast
Example of bad microbes?
Bacteria which cause diseases
Define disease
Any condition that affects the nornal functioning of an organism
What do diseases cause?
Symptoms that affect the normal functioning of the body
How do diseases spread?
Through the direct transfer of bacteria, viruses or germs
What are infectious diseases?
Diseases that spread from one organism to another
Example of infectious diseases?
Chicken pox, HPV
What is the process of infectious diseases?
The host is affected by the pathogen
How can infectious diseases be prevented?
Good hygiene, vaccination, isolation, antibiotics
How can bacteria cause diseases
Producing toxins that are poisonous to host cells and stopping the host cell from functioning properly
What do bacteria require to grow and reproduce?
Nutrients, water, suitable temperature and pH, oxygen
How do bacteria spread?
Close contact, vectors, objects with remaining bacteria, contaminated food and water
How do pathogens spread?
Skin contact, airborne particles, touching a surface touched by an infected person
Modes of disease transmission?
Inhalation, ingestion, direct contact
Rank the severity of epidemic, pandemic, outbreak
Outbreak, epidemic, pandemic
What are antibiotics?
They destroy micro organisms inside the body
What are disinfectants?
Chemical substance that destroys micro organisms found on inanimate objects
What are antiseptics
A chemical substance used to stop or slow the growth of micro organisms on the external surfaces of the body
4 stages of natural selection?
Variation, differential survival, genetic inheritance, change of population
