Online | Wednesday 10 February 2021

Online | Thursday 29 April 2021

CODE: 8191


This webinar will look at the lesser known (and often confusing) aspects of photosynthesis and respiration which pupils need to understand in order to get A/A* but which are not covered in sufficient detail in either the specification or textbooks.


By the end of the webinar your students will be able to:

  • Confidently answer higher mark questions on the roles on electrons, ATP, NADP and water in red-ox reactions in photosynthesis
  • Score highly on respiration questions about electrochemical gradients, ATP synthesis and energy decoupling.
  • Learn how to avoid the common (and confusing) pitfalls where respiration and photosynthesis overlap.


  • All students taking A-level Biology


4.00 – 4.05  pm Welcome and Introduction

4.10pm:  Tricky Concepts and Key Studies in Photosynthesis (25 minutes)

  • An electron’s journey through a leaf from a flash of light to a bubble of oxygen- interpreting complicated diagram-based questions
  • Electron acceptors how they smooth the process along. Questions on which particular ones are used, when they are used and why they are used.
  • Final end products, what they go onto become. Long and short answer questions looking at the similarities and differences between the light dependent and light independent reactions. 

4.35pm: Tackling Short Answer Questions (25 minutes)               

  • Cytoplasm, Kreb’s cycle and mass energy production, understanding the intricate details.
  • How the energy making process begins in the cytoplasm, then what?
  • Understanding what mitochondrial cristae actually really do (and what they don’t!) 

5.00 pm: Long answer Question Strategy  (30 minutes)                                                                                   

  • Structuring answers that examiners will score highly.
  • Write succinct answers highlighting common features without being repetitive
  • Show examiners you know the subtle differences between the two processes.

Final tips and Questions (10 minutes)

Debbie Nsefik

Debbie teachers GCSE Biology, Chemistry, Physics and Maths while at A level she has taught A level Biology and Chemistry. She is also an A level Biology examiner. She has taught for over 18 years including as Head of Department of a large London comprehensive within 18 months of joining the profession and time working in the Middle east as a Science, Maths and IT teacher trainer. She has also worked as a STEM resources appraiser for the National School Partnership.