Respiration Flashcards
What is breathing?
The movement of air coming in and out of the lungs
What is respiration?
The chemical reaction that releases energy
What does anaerobic mean?
Without oxygen
Where does the reaction take place during respiration?
Mitochondria in the cells in our body
What are the waste products produced during respiration?
Carbon dioxide
Water
When does aerobic respiration happen?
All the time
What substrates are used for respiration?
Glucose
Sometimes fats and amino acids
What is a substrate?
The place on which and enzyme acts
What do we use energy from aerobic respiration for?
Movement
Maintaining body temperature
Building large molecules from smaller molecules
Is respiration endothermic or exothermic?
Exothermic
How do mitochondria provide an increased surface area for the enzymes involved in respiration?
They have a FOLDED MEMBRANE
Why is the word equation for aerobic respiration?
Glucose + oxygen ———> water + carbon dioxide ( + energy)
What is the symbol equation for aerobic respiration?
C6H12O6 + 6O2 ———> 6H2O + 6CO2
Why is aerobic respiration slower than anaerobic respiration?
It has more steps
Requires more enzymes
How can we test if carbon dioxide is produced during respiration?
Blow through straw into limewater
If present limewater goes cloudy
How can we test is water is produced during respiration?
1) blow on mirror so it gets condensation on it
2) breath on cobalt chloride paper so it goes from BLUE TO PINK
How can we test if heat is produced during respiration?
Put one dead and one alive bean in separate cans
Love one will respire
Can will heat up for live bean but not dead bean
When does anaerobic respiration take place in animals?
When their is not enough oxygen or none at all so oxidation of glucose is incomplete
What substrates are used in anaerobic respiration?
Only glucose
Where doe anaerobic respiration take place?
In cytoplasm