Indian Forest Service (Mains), Chemistry optional · 2021 · Paper I
Q7(b). Z-scheme of photosynthetic electron transport
Question
What is Z-diagram? Explain the electron flow mechanism in photosystem I and II through the Z-diagram.
Model answer
The free solution for 2021 answers questions 1, 2, 4, 5 and 6, the ones picked in its time plan. Question 7 is answered in full in the IFoS Chemistry Paper I, 2021 to 2025 book, with every part of every paper.
Part of VKC Basic
Read the key points and the full model answer with VKC Basic
VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.
Printed copy and Kindle
UPSC Indian Forest Service (Main) Chemistry Paper I: Model Answers 2021 to 2025
- All eight questions of each paper, with the question printed above its answer
- Physical chemistry numericals worked with units; inorganic structures drawn
- Topic-wise weightage and a topic-wise index
CoversZ-schemephotosynthesisphotosystem Iphotosystem IIelectron transport chain
All parts of Question 7
- 7(a) Langmuir adsorption and the Freundlich form15 marks
- 7(b) Z-scheme of photosynthetic electron transport15 marks
- 7(c) Pi donors and acceptors in octahedral complexes10 marks