- Figure 1.1 shows a molecule of ATP. ATP is the universal energy currency which provides the immediate source of energy for cellular processes.
When ATP is broken down into ADP and Pi, 30.6 kJ mol-1 of energy is released, which can be used for cellular activities.
Figure 1.1
- State the name of the part of the ATP molecule labelled X. [1]
- State the name of the part of the ATP molecule labelled Y. [1]
- State the name of the part of the ATP molecule labelled Z. [1]
- Give one example of what ATP is used for in a cell. [1]
Homework Answers
ATP or Adenosine triphosphate is composed of 3 parts:
- The base Adenine (Z)
- The sugar Ribose (Y)
- And three phosphate group or triphosphate (X)
ATP is important to many cellular functions. Examples are: cell signaling, energy currency of cell, precursor of DNA and RNA synthesis, helps in metabolic pathways etc.
Add Answer to:
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