Respiration

[d wannabe]

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Q: During respiration:

1) ADP is converted to ATP and energy is realeased
2) ATP is converted to ADP and energy is realeased
3) ADP is converted to ATP and energy is absorbed



I thought the answer is 1)
ADP --> ATP production

But the answer is 2)
Can someone explain why??

 

[ramin123]

You have to put in energy to convert ADP into ATP. It is an endothermic reaction.

 

[ramin123]

I would think it is #3 because cellular respiration is producing ATP from ADP. It gets it's energy from chemiosmosis. Where is this question from?

 

[doc3232]

energy is absorbed into the ATP when ADP goes to ATP.

 

[d wannabe]

energy is absorbed into the ATP when ADP goes to ATP.

So during cellular respiration, living organisms convert High energy compound (CHO) to lower energy compound (H2O and CO2), RELEASING energy. Then, the energy is stored as ATP

So I thought the answer would be Energy released/ and ADP --> ATP

 

[doc3232]

So during cellular respiration, living organisms convert High energy compound (CHO) to lower energy compound (H2O and CO2), RELEASING energy. Then, the energy is stored as ATP

So I thought the answer would be Energy released/ and ADP --> ATP

The answers are not specific enough. They don't specify what is releasing and what is absorbing energy.
In a reaction like this, one thing absorbs energy and one releases it.
What you wrote makes sense.