Respiration Flashcards
Define respiration.
Universal exothermic chemical process of transferring energy from the breakdown of glucose
Why is respiration considered an exothermic reaction?
Bc it releases heat energy
Why is heat energy converted into ATP?
BC ATP cant be used directly by cells
What is the energy produced from respiration used for?
- Contruction (making larger molecules from smaller ones)
- Contraction of muscles
- Homeostasis
- Cellular respiration
What are consumers?
Heterotrophic organisms (cannot produce their own biomass) that gain biomass from consuming other organisms to be used in respiration
What are the different types of respiration?
- Aerobic
2. Anaerobic
What is the difference between aerobic an anaerobic respiration?
- Aeriobic = in presence of oxygen
- most efficient way of transferring energy from glucose
- produces lots 32 molecules of ATP per molecule of glucose
- most efficient way of transferring energy from glucose
What is aerobic respiration? Equation?
- Aerobic = in presence of oxygen
- most efficient way of transferring energy from glucose - 32 molecules of ATP per molecule of glucose
- Glucose + oxygen —> carbon dioxide + water + (ATP)
Where does aerobic respiration take place?
- Mitochondria of EUkaryotic organisms
2. Cytoplasm of PROkaryotic organisms
What is anaerobic respiration? Equation?
- Limited oxygen
- Least efficient - 2 molecules of ATP per glucose molecule
- IN ANIMAL CELLS = Lactic acid as waste product = toxic in large amounts
- glucose —> lactic acid + ATP
Which type of respiration involves the INcomplete oxidation of glucose?
Anaerobic - products still contain energy
How do the products of anaerobic respiration in animal cells differ from those in plant/yeast cells?
Ethanol and carb diox are produced instead of lactic acid.
