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Term 4 3
Energy Transformations - Introduction, ATP and ADP
| Question | Answer |
|---|---|
| What does ATP stand for? | Adenosine Triosphate |
| What is ATP? | A compound that contains adenine, ribose and 3 phosphate molecules. |
| Where is most ATP produced? | In the mitochondria |
| When is energy released in the ATP? (hint: 3rd) | when the 3rd phosphate |
| What can this energy be used for? | This energy can be used for Anabolic Reactions |
| How does ATP energy compare with ADP energy? | ATP produces much higher energy than ADP energy. |
| What does ADP stand for? | Adenosine Diphosphate |
| What is ADP? | A compound that contains adenine, ribose and 2 phosphate molecules |
| When is ADP produced? | When ATP releases one of its phosphate molecules. |
| How does ADP energy compare with ATP energy | ADP produces far less energy than ATP |
| ADP/ATP cycle ........ store .......... as ....... ATP is made by ............. a ................ molecule to ....... | Cells store energy as ATP. ATP is made by adding a phosphate molecule to ADP |
| 2.How is this phosphate molecule added to the ADP? | Energy from the breakdown of molecules is used to add a phosphate to ADP. |
| 3. How does ATP release energy. | By breaking the high energy chemical bond of the last phosphate. |
| 4. How is the reaction sped up. | The reaction is sped up by the enzyme ATPase |
| 5. What is the remaining molecule called and how many phosphates does it have. | The remaining molecule has 2 phosphates and is called ADP. |
| 6. ....... can be ............. to form ........ and then be ......... ......... | ADP can be reused to form ATP and then be used again. |
| 7.What happens to the 'free' energy obtained from a breakdown? | It can also be used to add a phosphate to ADP to convert it to ATP. |