Microbes and Pathogens Flashcards
What are microbes and pathogens?
Microbes are micro-organisms. Diseases causing microbes are called pathogens and there are 3 mains types of pathogens.
What is bacteria?
Can be found everywhere, they are small living single celled organisms. Some bacteria can be helpful such as being used for medicine others can cause diseases such as typhoid, food poisoning and tuberculosis.
Bacteria can reproduce quickly and independently needing only 1 bacterium to divide into 2 bacterium every 20 minutes.
What are viruses?
Viruses are alien like creatures with unique structures. They are much smaller than bacteria and can only reproduce when inside another living creature.
Viruses need to hijack a host cell like a human body cell to live and make more viruses, they can not function outside of a host cell so some consider them not to be alive.
What are fungi?
Fungi are mould, mushrooms, yeast and toadstool. They grow in thread like structures or spores. They have no nucleus, and they help things to break down. There can be good fungi such as yeast to make bread.
How are diseases spread?
Diseases can spread through the air, land, water, sharing needles, from mothers to babies.
What is respiration in cells?
Cellular respiration is the process through which cells convert sugars into energy. To create ATP and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form.
What is respiration?
Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose,
