BIO

Where in the cell does glycolysis occur?

cytosol

What kind of process is cellular respiration?

exergonic (energy releasing)

how do cells capture energy?

from electrons falling from organic fuels to oxygen

Stages of cellular respiration

glycolysis, pyruvate oxidation, citric acid cycle, oxidative phosphorylation

where in the mitochondrion does oxidative phosphoyation occur

inner mitochondrion membrane

how many ATP are produced by the citric acid cycle for every glucose molecule metabolized?

two ATP

what occurs in the energy investment phase of glycolysis?

two ATP are used to break apart the 6 carbon glucose molecule into two 3 carbon molecules

what is the overall net production from glycolysis?

two ATP per glucose

chemical equation for cellular respiration

C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy

what happens to the electrons that are lost from pyruvate when it is oxidized?

NAD+ is reduced to NADH and takes electrons to the electron transport chain.

where in the mitochondrion does the citric acid cycle occur

matrix of mitochondrion

where in the cell is pyruvate oxidized? what is it converted into and how many carbons does the new molecule have?

mitochondria, acetyl-coA, two

which molecule catches the spent electrons? why is this particular molecule the best for the job? what else does it interact with and what is formed?

oxygen because it is highly electronegative. it accepts the electron and interacts with two protons to become water

How many NADH and FADH2 molecules are produced by the citric acid cycle for every glucose molecule metabolized

six NADH, two FDHH2

How is ATP formed?

substrate level phosphorylation in which a phosphate group is transferred from an organic molecule to ADP