8C Microbes and Disease Flashcards
Name the 7 life processes
.movment
.resperation
.sences
.growth
.reproduction
.excretion
.nutrients
What is a microorganism?
A very small living thing
What is a pathogen?
Something that can cause illness if it enters the body
What is the formula for aerobic respiration?
glucose + oxygen –> carbon dioxide + water
What type of respiration occurs in the presence of oxygen?
aerobic respiration
When does anearobic respiration occur?
When the cell is deprived of oxygen
What does yeast produce when it does anaerobic respiration?
ethanol
alcohol
How does yeast cause bread to rise?
When water, flour, yeast and sugar are mixed together the yeast does aerobic respiration producing carbon dioxide gas causing the bread to rise.
How can pathogens enter the body?
Through airways, food, cuts, eyes
How is the stomach adapted to stop pathogens entering the body?
It has acid in it
How does the body remove pathogens from our airways?
Sticky mucus catches the pathogens and cilia on your airways moves the mucus up and out of your nose.