The Krebs Cycle
The function of the Krebs Cycle is to oxidize _______.
What are substrates?
These hydrogen carriers are responsible for transporting hydrogens and electrons to the electron transport chain.
What are the carriers, NAD+ and FAD?
The removal of an electron signifies this reaction
What is oxidation?
The main source of ATP during the first 15 seconds of exercise
What is creatine-phosphate?
This is where glycolysis occurs in muscle cells
What is sarcoplasm?
The derivatives of these three substances enter the citric acid cycle
What are proteins, fats, and carbohydrates?
This function produces the majority of ATP during aerobic metabolism.
What is oxidative phosphorylation?
The addition of an electron signifies this reaction.
What is reduction?
A simple monosaccharide used by muscles to generate ATP.
What is glucose?
A product at the end of glycolysis that has H+ and results from an oxidation-reduction reaction
What is NADH?
During the Krebs Cycle, this is removed during transport to the electron transport chain
What are Hydrogens?
At the end of the electron transport chain, this important chemical element acts as the final hydrogen and electron acceptor.
What is oxygen?
Oxidation-Reduction reactions often involve the transfer of hydrogen atoms rather than these.
What are free electrons?
This organ contains glycogen that is breakdown between meals or when blood glucose is low.
What is the liver?
Pyruvate, a final product of glycolysis, when converted to lactate cannot enter this pathway.
What is Krebs cycle?
The enzyme that allows pyruvic acid to be converted into acetyl-coA
What is pyruvate dehydrogenase?
Flavin Adenine Dinucleotide (FAD), a hydrogen carrier of the electron transport chain, passes electrons from what to another
What are proteins (cytochromes) embedded in the ETC?
A molecule that loses a hydrogen also loses an electron and therefore is considered what
What is oxidized?
The preferred source of energy during exercise that lasts 1-3 min
What is muscle glycogen?
NAD+, also a result of glycolysis, transports hydrogens for aerobic metabolism where
What is the mitochondria?
Carbon dioxide, NADH and FADH
What are Krebs cycle main products?
This is the protein used by hydrogens to flow down their concentration gradient
What is ATP synthase?
The product of the reduction of pyruvic acid
What is lactic acid?
When activated it catalizes the breakdown of creatine phosphate into energy to generate ATP
What is creatine kinase?
The location where H+ are transported by coenzymes FAD and NAD
What is the inner mitochondrial membrane?