POV: Your A Glucose Molecule
his is the specific location in the cell where glycolysis takes place.
What is the cytoplasm?
This term describes a fundamental biological process where an atom or molecule loses electrons to another atom.
What is oxidation?
As high-energy electrons move through the electron transport chain, this molecule acts as the final electron acceptor.
What is oxygen?
ATP production will always meet the body's energy demands; a decrease in ATP demand triggering a decrease in cellular respiration is an example of this biological concept.
What is negative feedback?
When humans exercise intensely, our muscle cells rely on this specific anaerobic pathway, which can cause cramping until oxygen levels recover.
What is Lactate (Lactic Acid) Fermentation?
While glycolysis produces 4 ATP in total, it requires an input of 2 ATP, resulting in this specific NET production of ATP per glucose molecule.
What is 2 ATP?
Glucose and octane can both be used as fuel because they share this structural similarity, giving them high chemical potential energy.
What is lots of C-H bonds?
This region of the mitochondria contains the highest concentration of hydrogen ions (H⁺) during the electron transport chain.
What is the intermembrane space?
When a cell has enough energy, these three specific molecules act as allosteric inhibitors to shut down the enzyme Phosphofructokinase (PFK).
What are ATP, NADH, and citrate?
During alcohol fermentation in yeast, pyruvate is decarboxylated into acetaldehyde, which releases this specific gas as a byproduct.
What is carbon dioxide (CO₂)?
During glycolysis, all of the carbon atoms in glucose end up in the final product called pyruvate; a single pyruvate molecule contains this many carbon atoms.
What is 3 carbon atoms?
In controlled cellular oxidation, energy is efficiently captured by intermediaries like NAD⁺ and FAD, which are commonly referred to by this transportation-themed nickname.
What are "electron shuttles" (or energy carriers)?
This specific protein embedded in the inner mitochondrial membrane provides passage for H⁺ to flow through, using kinetic energy to synthesize ATP.
What is ATP Synthase?
Before proteins can be oxidized through cellular respiration, they must be converted into amino acids and this specific nitrogen-based group must be removed.
What is NH₃ (ammonia)?
Because it does not use the Krebs cycle or oxidative phosphorylation, fermentation only generates this specific net amount of ATP per glucose.
What is 2 ATP?
These two molecules act as the primary high-energy electron carriers generated during the stages of cellular respiration.
What are NADH and FADH₂?
When the empty energy carrier NAD⁺ is reduced to form NADH, it gains one H⁺ ion and two of these subatomic particles.
What are electrons?
Under ideal theoretical conditions, each FADH₂ molecule results in two ATP molecules, while each NADH molecule results in this many ATP molecules during oxidative phosphorylation.
What is three ATP molecules?
Regardless of whether you are metabolizing carbohydrates, fats, or proteins, the metabolic pathways eventually convert most of these macromolecules into this specific compound to enter the citric acid cycle.
What is Acetyl CoA?
The primary purpose of fermentation is to oxidize this molecule back into NAD⁺ so that glycolysis can continue to produce ATP.
What is NADH?
In the detailed steps of glycolysis, the 6-carbon molecule is split by an aldolase enzyme into two 3-carbon molecules (DHAP and G3P) immediately after taking this specific form.
What is Fructose 1,6-bisphosphate?
The key difference between controlled biological oxidation and this specific uncontrolled process is that the latter stores no free energy and releases it all at once as thermal energy.
What is rapid combustion?
NADH and FADH₂ drop off high potential energy electrons at the inner mitochondrial membrane to provide the energy necessary to do this specific work.
What is pump hydrogen ions (H⁺) across the membrane?
Efficiency of cellular respiration is calculated by using the energy efficiency formula (Eout / Ein) x 100; for glucose producing 38 ATP, this calculation yields an efficiency percentage of approximately this much.
What is 41%?
Denitrifying bacteria living in the soil perform true anaerobic respiration by using this specific molecule as an alternative final electron acceptor to produce nitrogen gas
What is nitrate?