alternative respiratory substrates
What alternative respiratory substrates means in Biology A-Level, as defined for AQA.
Definition of alternative respiratory substrates
Check what you remember
Read the wording for your board, then hide it and explain alternative respiratory substrates in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Other respiratory substrates include the breakdown products of lipids and amino acids, which enter the Krebs cycle.
Topics that use alternative respiratory substrates
- Respiration (A-level only) (AQA A-Level)
Related terms
- active transport
- anaerobic stage
- ATP hydrolase
- continuation of glycolysis
- ethanol and carbon dioxide
- Krebs cycle
- limited NAD pool
- link reaction
Using alternative respiratory substrates in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge