Other Flashcards
A pathogen
A disease causing microorganism (eg. virus, bacteria, fungi)
Metre (m) to millimetre (mm)
x1000
The role of bacteria and fungi in the carbon cycle
Decomposition- when complex carbon compounds in dead organisms (eg. urine or faeces) are broken down into simpler carbon compounds by bacteria or fungi
Respiration equation
Glucose + oxygen —> carbon dioxide + water
Why do we use aseptic techniques?
To prevent contamination by other microorganisms
Breathing
The physical movement of air in and out of an organism
Respiration
A chemical reaction that occurs in cells between oxygen and glucose which releases energy
Egestion
The removal of faeces from the body
Excretion
The removal of waste that is produced by the body
What is a microbe?
A microbe is a very tiny single-celled organism
What are a microbe’s conditions for growth?
Warmth, moisture, a food source
What are the 4 key stages of the carbon cycle?
Photosynthesis, respiration, decomposition, combustion
