b9 Flashcards
Name the organelle where respiration takes place.
Mitochondria.
Describe the difference between breathing and respiration.
Respiration = chemical process in cells. Breathing = physical process in lungs.
Name the two types of respiration.
Aerobic (with oxygen) and Anaerobic (without oxygen) respiration.
What does respiration release?
Energy.
Describe why respiration is important.
Growth and repair, muscle contraction, maintains body temperature, active transport.
Give the word equation for aerobic respiration.
Glucose + oxygen → carbon dioxide + water.
Give the word equation for anaerobic respiration (Part 1: During exercise).
Glucose → Lactic acid.
Give the word equation for anaerobic respiration (Part 2: After exercise).
Lactic acid + oxygen → carbon dioxide + water.
What is lactic acid?
Poisonous waste product, causes cramps.
Describe how your body gets rid of lactic acid.
React it with oxygen.
Define oxygen debt.
Amount of oxygen needed to get rid of lactic acid.
Describe the effect exercise has on your heart.
Heart rate increases. Supply of oxygen and glucose to cells increases.
Describe the effect exercise has on your breathing rate.
Breathing rate increases. Speeds up removal of carbon dioxide and absorption of oxygen.
Describe the effect exercise has on your temperature.
Temperature increases. Respiration is exothermic.
Describe the effect exercise has on your glycogen stores.
Glycogen stores decrease. Glycogen is broken down into glucose which is used in respiration.
