Respiration Flashcards
(17 cards)
What is cellular respiration?
An exothermic reaction which transfers energy from glucose and is continuously occurring within all living cells
Where does cellular respiration occur?
In mitochondria and cytoplasm
What is metabolism?
All the chemical processes that occur within a living organism in order to maintain life
How is energy transferred within the cell
ATP
What processes require energy from ATP
Maintaining body temp
Active transport
Passage of nerve cell impulses
Muscle contraction
Protein synthesis
What is aerobic respiration?
The chemical reaction within cells that uses oxygen to break down glucose to release energy for use in cell processes and reactions
In which organisms does aerobic respiration occur?
Animals
Plants
Fungi
What is the symbol equation for aerobic respiration
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy (ATP)
What is the word equation for aerobic respiration
Glucose + Oxygen → Carbon dioxide + Water + Energy (ATP)
Why is anaerobic respiration worse than aerobic?
- Incomplete breakdown of glucose (releases less ATP)
- Toxic byproducts
What is anaerobic respiration?
The chemical reaction within cells that breaks down glucose molecules to release energy without using oxygen
Where does anaerobic respiration take place in animals
Mainly muscle cells during exercise (where not enough oxygen is delivered for aerobic)
What is the word equation for anaerobic respiration in animals?
Glucose → Lactic Acid
What is oxygen debt
Lactic acid + Oxygen → Carbon dioxide + Water
What is the word equation for anaerobic respiration used in plants and fungi?
Glucose → Ethanol + Carbon dioxide
How is anaerobic respiration in yeast (fermentation) useful?
Bread: CO₂ helps dough rise
Brewing: Ethanol is alcohol
