how long does a cells energy source last?

between 30 seconds and a few minutes at most

what are the 4 steps of cellular respiration.

glycolysis: pyruvate processing: citric acid cycle: electron transport chain and oxidative phosphorylation: [know locations inside of the cell where each step occurs][and know the inputs and outputs for each step]

substrate-level phosphorylation

a type of metabolic reaction that results in the formation of ATP or GTP by the direct transfer and donation of a phosphoryl group to adenosine diphosphate or guanosine diphosphate from a phosphorylated reactive intermediate

whats the purpose of the NADH and FADH2 electron carriers?where do the drop off their electron?

to transfer the electrons between molecules in the electron transport chain.

production of ATP from the proton gradient

describe the electron transport chain.

a group of molecules chained together in which the electron carriers [NADH and FADH2] transport electrons creating a proton gradient which ultimately creats ATP.

describe the formation of the proton gradient and where it occurs.

electrons bouncing between molecules causes the formation of the proton gradient in the intermembrane space in a mitochondria.

what is the proton gradient's purpose.

to form ATP, which is the energy source of cells.

what does ATP synthases do?

ATP synthasis is an enzyme that makes ATP from the proton gradient

oxidative phosphorylation

the formation of ATP in the final step in cellular respiration.

the breakdown of glucose into 2 molecules of pyruvate [a small amout of ATP is made](NAD+ is reduced to NADH[NADH is an electron carrier])

pryuvate is converted into acetyl [co2 is produced]more NAD+ is reduced to NADH

acetyl is converted into 2 molecules of co2. more atp is produced NADH are made FAD is reduced to FADH2[another elecrton carrier]

electron transport chain [ETC] and oxidative phosphorylation

NADH and FADH2 take the electrons to a chain of molecules[the ETC] electrons "bounce" between moleculescause the formation of a H+ gradient(proton gradient) the H+ gradient is used to form ATP.

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SCC bio ch.9

cellular resperation

Question	Answer
whats the main energy source in cells?	ATP
how long does a cells energy source last?	between 30 seconds and a few minutes at most
where does glucose ultimately come from?	the sun
what are the 4 steps of cellular respiration.	glycolysis: pyruvate processing: citric acid cycle: electron transport chain and oxidative phosphorylation: [know locations inside of the cell where each step occurs][and know the inputs and outputs for each step]
substrate-level phosphorylation	a type of metabolic reaction that results in the formation of ATP or GTP by the direct transfer and donation of a phosphoryl group to adenosine diphosphate or guanosine diphosphate from a phosphorylated reactive intermediate
whats the purpose of the NADH and FADH2 electron carriers?where do the drop off their electron?	to transfer the electrons between molecules in the electron transport chain.
chemiosmosis	production of ATP from the proton gradient
describe the electron transport chain.	a group of molecules chained together in which the electron carriers [NADH and FADH2] transport electrons creating a proton gradient which ultimately creats ATP.
describe the formation of the proton gradient and where it occurs.	electrons bouncing between molecules causes the formation of the proton gradient in the intermembrane space in a mitochondria.
what is the proton gradient's purpose.	to form ATP, which is the energy source of cells.
what does ATP synthases do?	ATP synthasis is an enzyme that makes ATP from the proton gradient
oxidative phosphorylation	the formation of ATP in the final step in cellular respiration.
glycolysis	the breakdown of glucose into 2 molecules of pyruvate [a small amout of ATP is made](NAD+ is reduced to NADH[NADH is an electron carrier])
pryuvate processing	pryuvate is converted into acetyl [co2 is produced]more NAD+ is reduced to NADH
citric acid cycle	acetyl is converted into 2 molecules of co2. more atp is produced NADH are made FAD is reduced to FADH2[another elecrton carrier]
electron transport chain [ETC] and oxidative phosphorylation	NADH and FADH2 take the electrons to a chain of molecules[the ETC] electrons "bounce" between moleculescause the formation of a H+ gradient(proton gradient) the H+ gradient is used to form ATP.
who loves you?	kogy does :]

Created by: mtalbot

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