April 21, 2020
1.2.c State that ATP is produced in mitochondria and chloroplasts and outline the role of ATP in cells.
- Adenosine triphosphate (ATP) is the universal energy carrying molecule of cells (this means that energy is carried by ATP before being released).
- It is produced in mitochondria and in chloroplasts.
- ATP is made up of 3 phosphate groups, a nitrogenous base and a ribose sugar.
- ATP breaks down to ADP (via a reaction called hydrolysis), and energy is released.
📘💯GCE CIE Biology Exam Advice: If a “state” type question arises in an exam, keep in mind that you need to clearly express the main points of the topic without explaining too much detail.
For example, an exam question might ask “State where ATP is produced”, in which case you would simply write “ATP is produced in the mitochondria and chloroplasts”.
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References:
- ATP cycle and reaction coupling | Energy. Retrieved from https://www.khanacademy.org/science/biology/energy-and-enzymes/atp-reaction-coupling/a/atp-and-reaction-coupling
- Jones, M., & Parkin, M. (2018). Cambridge International As and A level biology. Cambridge: Cambridge University Press.