Metabolism Flashcards
Which pathways act as a source for the electrons carried by the NADH and FADH molecules?
glycolysis and citric acid cycle
which coenzymes transfers the high energy electron to the electron transport chain?
NAD+ and FAD
What is oxidation-reduction?
in an oxidation -reduction reaction, the reduced reactant …?
gains electrons
What form is energy stored in during electron transport?
Proton gradient
Does H+ ions release or keeps energy when it diffuse back across the membrane?
it releases energy and powers ATP
diffusions of ions such as sodium powers what?
they power solute molecules like glucose
the goal of cellular respiration is to ?
convert ADP molecules into ATP molecules
where is the electron transport chain located?
inner mitochondrial membrane
what serves as the direct energy source for the proton pumps in oxidative phosphorylation?
electrons passing from transfer molecules to oxygen
when electrons move through the transport chain, the energy is used to form what type of protons?
H+
primary function of the overall reactions of cellular respiration
to generate ATP
catabolism of food molecules involves….?
hydrolysis reactions
what what does not occur in the mitochondira?
glycolysis
what three things occur in the mitochondria ?
electron transport, citric acid (krebs)cycle, and formation of malic acid from fumaric acid
what type of energy fuels the brain?
glucose
breaks down complex structures to simpler ones
catabolism
what is produced at the end of the electron transport chain?
water
conversion of glucose into two molecules of pyruvate
glycolysis
True or False. citric acid produces FADH2, NADH, and CO2.
true
what initial reactant is required for the citric acid cycle?
citric acid
stabilizing component of the plasma membranes and is the parent molecule of steroid hormones
cholesterol
the sum of all biochemical reaction in the body
metabolism
the citric acid occurs in the ….
mitochondria
