Respiration and breathing Flashcards
What is the word equation for aerobic respiration?
glucose + oxygen —> carbon dioxide + water
What is respiration?
Respiration is a chemical reaction in which living cells release energy from glucose by producing ATP.
Why do living organisms need to respire?
All living organisms respire because respiration releases energy which is essential to all basic processes organisms need to survive. For example to provide energy for heart muscles to pump blood around the body.
When you run, why do you get very out of breath and very hot?
When you run, respirations occurs to give you energy. The energy is released as heat, so you get hot when you run. Oxygen is a reactant in respiration, this takes more oxygen the harder you work, this means that you get very out of breath. You also need to get rid of the carbon-dioxide that you breath in, so you breath faster to get it out. Your heartrate also goes up because your heart is pumping harder to take the oxygen in your blood to your muscles.
What is the difference between anaerobic and aerobic respiration?
Aerobic respiration uses oxygen to respire, producing carbon dioxide and water. Anaerobic respiration doesn’t use oxygen to respire, only glucose. It produces lactic acid in animals, but ethanol and carbon dioxide are produced in plants and fungi.
What is the word equation for anaerobic respiration in animals?
glucose —> lactic acid
What is the word equation for anaerobic respiration in fungi and plants?
glucose —> ethanol + carbon dioxide
What is the symbol equation for aerobic respiration?
C6H12O6 + 6O2 → 6CO2 + 6H2O
What is symbol equation for anaerobic respiration in animals?
C6H12O6 —> 2C3H6O3
What is symbol equation for anaerobic respiration in fungi and plants?
C6H1206 —> C5H12O4 + CO2
what are some key points associated with anaerobic respiration?
- contributes to muscle tiredness
- happens in all living things animals and plants
- produces lactic acid
- glucose is not broken down completely
- happens in yeast
- can be used to make alcoholic drinks
- releases less energy per glucose molecule
- one reactant
-occurs in cytoplasm
what are some key points associated with aerobic respiration?
- releases more energy per glucose molecule
- happens in the mitochondria
- produces water and carbon dioxide
- happens in all living organisms
- glucose is fully broken down
What are the components of the gaseous exchange system?
Trachea, Bronchi, bronchioles, alveoli, intercostal muscles and ribs, diaphragm.
What happens in inhalation?
Diaphragm contracts. The intercostal muscles and ribs move up and out. Volume of the thorax increases. Pressure in the thorax decreases. Air pressure is higher than pressure in the thorax, causing air to rush into the lungs.
What happens in exhalation?
