Respiration Flashcards
What does the process of respiration do?
Releases energy in living organisms
Anaerobic and aerobic respiration differences
Aerobic Needs O2 Complete glucose breakdown Produces CO2 and H2O Relatively large amount energy released In mitochondria
Anaerobic Doesn't need O2 Incomplete glucose breakdown Produces lactic acid/CO2 and ethanol Relatively small amount energy released
Word equation for aerobic respiration in living organisms
Glucose+oxygen–>Carbon dioxide+water+energy
Balanced symbol equation for aerobic respiration in living organisms
C6H12O6+6O2->6CO2+6H2O+energy
Word equation for anaerobic respiration in plants
Glucose–>
Ethanol + carbon dioxide +energy released
Word equation for anaerobic respiration in animals
Glucose –>
Lactic acid + energy released
Why do living organisms need energy?
For all life processes including muscle contraction, movement, growth and repair
Where do organisms get their energy from?
Food
Mainly carbohydrates and fats
During the process of aerobic respiration, what is released and how is it released?
Co2 water and energy
Released by combining the food with oxygen inside every living cell
What is the role of yeast in the production of beer?
To produce alcohol/ethanol
A simple experiment to determine the energy content in a food sample
Hold burning food under a boiling tube with 20grams of water and a thermometer in it
The energy heats up the water so the hotter the water is, the more energy is being produced by the food
What do energy requirements vary with
Activity levels
Age
Pregnancy
Cellular respiration?
The chemical process that breaks down glucose in the presence of oxygen to get energy
Aerobic respiration?
Needs oxygen
Most efficient way of releasing energy from glucose
In mitochondria
Anaerobic respiration?
Takes place when there is not enough oxygen available
In humans it happens in muscle cells
Produces lactic acid as a waste product
