Aerobic and Anaerobic Respiration Flashcards
What is cellular respiration?
An exothermic reaction, which transfers energy from glucose and continuously occurs in living cells.
It involves breaking apart glucose molecules to release the energy that’s trapped inside.
Note that energy is not being made, it’s just being transferred from the glucose molecule. You are NOT allowed to say that energy is being “created”.
Exothermic - Reaction releases energy
How do organisms use energy?
-
To build up larger molecules from smaller ones
For example, combining amino acids to form proteins. - For muscular contraction
- Maintaining body temperature
+ more.
What are the 2 types of respiration?
Aerobic Respiration and Anaerobic Respiration
What is aerobic respiration?
It takes place whenever there’s enough oxygen.
It is the most efficient way to transfer energy from glucose, and it continuously takes place in plants and animals. Specifically, it takes place in the organelles known as mitochondria.
What is the word equation and chemical equation for aerobic respiration?
Glucose + Oxygen -> Carbon Dioxide + Water
C6H12O6 + 6O2 -> 6CO2 + 6H2O
Notice how there is 6 of everything other than the glucose.
What is anaerobic respiration?
It’s just respiration without oxygen, and we only do this when we really need to. For example, when we are sprinting, and we can’t get enough oxygen to our tissues to keep up with the demands of the more efficient aerobic respiration.
What is the word equation for anaerobic respiration in humans?
Glucose -> Lactic Acid
Why do humans prefer not to use anaerobic respiration?
The glucose is only partially broken down, which makes it inefficient because we are not unlocking all of the energy in the glucose molecule.
It also produces lactic acid, which is toxic, so it has to be removed from our bodies later.
What is the word equation for anaerobic respiration in plants/yeast?
Glucose -> Ethanol + Carbon Dioxide
When anaerobic resorption is used in yeast, what do we call this process?
Fermentation
