IB Biology HL C1.2.1 Atp Distributes Energy Questions
Practise IB Biology HL 1.2.1 by explaining how ATP to ADP conversion distributes manageable energy for cellular work.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Explain how ATP captures energy from respiration and distributes small, usable transfers to energy-requiring cellular processes.
- Explain that ATP hydrolysis to ADP and phosphate releases manageable energy for cellular work, while ATP is rapidly regenerated.
- Relate ATP solubility and stability in the cytoplasm to its role as a universal cellular energy currency.
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IB Biology HL C1.2.1 Atp Distributes Energy Questions question 1
[Maximum number: 3]
All cells require a supply of energy and can transform the energy that they obtain in different ways.
Explain the properties of ATP that make it useful for distributing energy within cells.
a. used as a source/(temporary) store of energy / is the energy currency of the cell;
b. releases energy when converted to ADP/when a phosphate is removed;
c. amount of energy released can be used/sufficient for (many metabolic) tasks;
d. active transport/another valid example;
e. ATP to ADP conversion is reversible / ATP can be regenerated from ADP;
f. can be produced in different ways/using energy from different sources/by aerobic or anaerobic respiration;
g. stable within cell so does not release energy prematurely/before needed;
h. small molecule/soluble so can move easily/quickly (through the cell);
i. cannot diffuse through membranes so is not lost from cell/to the environment;
h. The idea of ATP being small/soluble
must be there along with its
moveability.
3
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