Chapter 20, Problem 5P

(a)

Summary Introduction

To explain: How the inhibitor of electron passage through pheophytin would affect electron flow through photosystem II.

Introduction:

The light reactions take place in the thylakoid membrane of chloroplast. This light reaction of photosyntesis is also called as Z scheme because the light first strikes to photosystem unit I where 2e^- (two electrons) are released and then these electrons pass through photosystem II. The end product of light reaction is the production of ATP and NADPH.

(b)

Summary Introduction

To explain: How the inhibitor of electron passage through pheophytin would affect electron flow through photosystem I.

Introduction:

The light reactions take place in the thylakoid membrane of chloroplast. This light reaction of photosyntesis is also called as Z scheme because the light first strikes to photosystem unit I where 2e^- (two electrons) are released and then these electrons pass through photosystem II. The end product of light reaction is the production of ATP and NADPH.