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ATP
chapter 8- exam 3- ATP
| Question | Answer |
|---|---|
| Describe the structure of ATP | Adenine- a nitrogenous base, Ribose- a 5-carbon sugar, three phosphate groups- linked by high-energy bonds |
| What monomeric subunit that makes up biological macromolecules is ATP most similar to? | nucleotide |
| Describe ATP hydrolysis | the process where ATP is broken down into ADP and a phosphate group, releasing energy for cellular activities |
| what are all of the products that are produced | ADP, an inorganic phosphate (Pi) and releases energy |
| What are the three types of cellular work powered by the energy stored in ATP | mechanical, transport, chemical |
| What is mechanical work | ATP provides the energy that allows motor proteins to move and contract muscle fibers (muscle contractions) |
| what is transport work | ATP powers the active transport mechanisms, like the sodium-potassium pump, moving substances against their concentration gradients. |
| What is chemical work | ATP supplies the energy needed to build complex molecules like proteins and nucleic acids from simpler building blocks. (synthesize macromolecules) |
| Describe the ATP-ADP cycle in the cell | involves ATP breaking down to release energy, then regenerating from ADP and phosphate using energy from nutrients |
| How is the ATP-ADP cycle coupled with exergonic reactions | releases energy |
| How is the ATP-ADP cycle coupled with endergonic reactions | require energy input |
Created by:
josie_d
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