All the products of Cellular Respiration starting with the one with most energy

[kino11]

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While practicing I came across a question that asks me to list products of cellular respiration from highest to lowest energy. Can someone Help. Thanks.

 

[AlbinoPolarBear]

While practicing I came across a question that asks me to list products of cellular respiration from highest to lowest energy. Can someone Help. Thanks.

Do you know your Kreb's cycle?

 

[kino11]

Do you know your Kreb's cycle?

I know what the products are I just want to know How do I tell which has the highest energy.

 

[kino11]

I know what the products are I just want to know How do I tell which has the highest energy.

For example from Highest to lowest energy NADH2> FADH2> NAD> FAD >ATP> ADP correct?

or are NAD+ and FAD+ just carries?

 

[AlbinoPolarBear]

I know what the products are I just want to know How do I tell which has the highest energy.

The earlier a product is in a chain, the more energy it will have.

For example, they can give you the following compounds:

1. Glucose
2. Pyruvate
3. NADH
4. FADH2
5. ATP

Glucose, via glycolysis will produce 2 pyruvates and 2 ATP.

The pyruvate will get converted into Acetyl CoA, releasing CO2 and NADH.

Acetyl CoA via the Krebs cycle, will produce 3 molecules of NADH, 1 FADH2, 1 GTP, etc.

NADH, via oxidative phosphorylation, produces 3 ATP
FADH2, via oxidative phosphorylation, produces 2 ATP

The higher up on the chain, the greater the energy it possses, cuz it can release more ATP.

Fats, however, can be broken down into many Acetyl-CoA's, so they usually have the most stored energy.

Hope that helps.

 

[AlbinoPolarBear]

For example from Highest to lowest energy NADH2> FADH2> NAD> FAD >ATP> ADP correct?

or are NAD+ and FAD+ just carries?

NADH> FADH2> ATP > ADP > FAD+= NAD+

Yeah, NAD+ and FAD+ don't release any energy, as they cannot produce ATP via oxidative phosphorylation. Not sure about their intrinsic ability to product energy though (this part is way beyond the scope of the DAT).

 

[kino11]

Thank you. Actually I had a question similar to this on the real DAT I took it once already. I'm studying for it for the second time.

 

[jwnichols21]

NADH> FADH2> ATP > ADP > FAD+= NAD+

Yeah, NAD+ and FAD+ don't release any energy, as they cannot produce ATP via oxidative phosphorylation. Not sure about their intrinsic ability to product energy though (this part is way beyond the scope of the DAT).

Where could we fit Glucose and Pyruvate into this scheme?

 

[AlbinoPolarBear]

Where could we fit Glucose and Pyruvate into this scheme?

Glucose > pyruvate > NADH > FADH2 etc

I would suggest understanding the products of glycolysis, Krebs cycle and oxidative phosphorylation rather than just memorizing which compounds have the most energy.