Respiration Flashcards
name a life process?
movement
what do plants and animals need to release energy?
glucose and oxygen
what is releasing the energy in cells called?
respiration
what does aerobic respiration use?
oxygen to release energy
what is the word equation for aerobic respiration?
glucose + oxygen — carbon dioxide + water
what is energy used for in the body?
mammals use the energy to maintain body temperature
energy is also needed to make proteins and contract muscles
what is the balanced symbol equation for respiration?
C6H12+6O2 —- 6O2 + 6H20 + energy
what is the rate of respiration in an organism measured by?
using a respirometer
what is the equation for respiratory quotient?
RQ= carbon dioxide produced
oxygen used
what is energy stored as?
ATP molecules
what is ATP used for?
as an energy source for many processes inside the cell
what is the process of respiration controlled by?
enzymes
what is the rate of respiration dependant on?
pH and temperature
what is your metabolic rate?
the amount of energy your body needs
how can metabolic rate be estimated?
by measuring oxygen uptake
what is your body doing when you are using up more oxygen and glucose?
getting rid of waste carbon dioxide produced by cells as quickly as possible
how does the body get rid of carbon dioxide?
heart rate increases
more oxygen and glucose carried in blood to muscles
muscle cells use energy and produce co2 waste
more carbon dioxide carried to lungs and breathed out
explain why metabolic rate can be estimated by measuring oxygen intake?
because changes to pH and temperature can affect enzymes
what does anaerobic respiration do?
releases energy without the use of oxygen and produces lactic acid as waste
which respiration releases much less energy per glucose molecule?
anaerobic than aerobic
what does lactic acid do?
stops muscles working temporarily
why is more energy released in anaerobic respiration than aerobic respiration?
because glucose is only partly broken down
why does painting occur after exercise?
replaces oxygen to allow aerobic respiration to take place
how does davids body recover from hard exercise?
david breathes heavily for a few minutes to obtain extra oxygen. The extra oxygen required to remove the lactic acid is called the oxygen debt
