i) Briefly explain the difference between anaerobic and aerobic respiration (2). ii) Which of these reactions produce more energy and briefly describe why?(2)

i) Anaerobic and aerobic respiration are both biochemical reactions (see below): ANAEROBIC RESPIRATIONGlucose = lactic acid + energy releasedAEROBIC RESPIRATIONGlucose + oxygen= carbon dioxide + water + energy releasedFor cells to /survive they need to produce energy for themselves. This is called respiration (anaerobic or aerobic)In aerobic respiration glucose and oxygen are needed. In anaerobic respiration only glucose is neededSo when there isn’t enough oxygen available then anaerobic respiration occurs. ii) Aerobic respiration produces more energy. For energy to be released, chemical bonds are broken (see above*). Far less energy is released from each molecule of glucose in anaerobic respiration compared to aerobic respiration . This is because glucose is not completely broken down and a lot of energy remains stored in lactic acid in the form of chemical bond energy

MC
Answered by Mani C. Biology tutor

2914 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

How does blood flow through the heart?


Why is it that Gonorrhoea can be treated with an antibiotic, but HIV cannot?


State three ways in which the body will respond to hot temperatures.


How would a reflex action take place?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning