Respiration Flashcards
Breathing
A mechanical process
Takes place in and out of lungs
ATP molecules used
Respiration
A chemical process
Takes place inside cells
ATP molecules are produced
Respiration equation
Glucose and oxygen produces carbon dioxide, water and ATP
Breath in
Oxygen
Excreted out
Carbon dioxide
Gas exchange surface in lungs
Carries carbon dioxide from cells to lungs
Blood vessels
Carries oxygen to cells
Thorax
The lungs are enclosed in thoraxic cavity by the rib cage and diaphragm
Inhalation
External intercostal muscles contract
Internal intercostal muscles relax
Rib cage and sternum moves upwards and outwards
Diaphragm contracts and flattens downwards
Thoracic volume increases
Pressure inside the thorax decreases
Air is pushed into the lungs
Exhalation
Internal intercostal muscles contract
External intercostal muscles relax
Rib cage and sternum moves downwards and inwards
Diaphragm relaxes and becomes dome shape
Thoracic volume decreases
Pressure inside the thorax increases
Air is pushed out of the lungs
Aerobic repiration
Glucose and oxygen from carbon dioxide and water
Aerobic and anaerobic respiration: oxygen
Aerobic: needed
Anaerobic: not needed
Aerobic and anaerobic respiration: glucose breakdown
Aerobic: complete
Anaerobic: incomplete
Aerobic and anaerobic respiration: products
Aerobic: Carbon dioxide and water
Anaerobic
Animal cells: lactic acid
Yeast: carbon dioxide and ethanol
Aerobic and anaerobic respiration: energy released
Aerobic: a lot
Anaerobic: A Little
Anaerobic respiration
Glucose to lactic acid
Anaerobic respiration in plants and fungi
Glucose forms alcohol and carbon dioxide
Ventilation
The movement of air into and out of lungs
Inhalation
Movement of air into lungs
Exhalation
Movement of air out of lungs
