Cellular Respiration Flashcards
Cellular respiration is key in catabolism and breaking down key molecules, but why is it important?
Cellular respiration is key because it’s our only way of adding oxygen to the reactions, like B-oxidation. If we didn’t use oxygen then only glycolysis will work and not Krebs-cycles and the oxidation phospholiation (electron transport chain)
Fat gets broken down to what?
Glycerol and fatty-acids
What can the fatty acids be turned into?
Acetyl-CoA (coenzyme A), and also a lot of carbon
How does fat get broken down?
Fat gets broken down with something called Beta-oxidations, which is a multiple chain reaction
What happens to a protein when it gets eaten?
When a protein arrive in the stomach the protein will get broken down to the amino acids it’s built up on. These will in turn be actively be absorbed in the intestines. Here they have two ways to go, most of the times the body need these to build proteins of its own. If it doesn’t then they will go through a process called deamination, here the amino group (NH3 Ammonia) disperses from the rest of the carbon skeleton, which leaves plenty of possibilities for it to be transformed into.
What’s the process where the amino group is removed from the amino acids?
Deamination
What organ produces urea?
The liver produces urea. This is waste breakdown of amino acids(protein)
What is necessary for glucose to be completely broken down?
Oxygen. If we don’t have oxygen then after glycolysis it would need an anaerobic mechanism, like the fermentation reaction.
What does fermentation give after glycolysis?
Its one of three, either 2 lactic acids.
Or 2 ethanol and 2 CO2.
Or 2 butyric acid
What is glycolysis?
Glycolysis is the first step to breakdown glucose. Glycolysis happens in the cytosol and the reaction doesn’t require oxygen.
How many part reactions are in glycolysis?
There are 10 part reactions in glycolysis, and each of these are catalysed by an enzyme
