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

2713 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Compare anaerobic respiration in a yeast cell with anaerobic respiration in a muscle cell (3 marks)


Describe the similarities and differences between the processes of osmosis and diffusion


What are the non-specific defence systems of the human body that protect it from pathogens?


Why do plant shoots grow towards sunlight?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences