Chapter 14, Problem 12P

Summary Introduction

To determine: How chloroplasts generate a larger proton gradient across the thylakoid membrane than mitochondria can generate across the inner membrane.

Concept introduction:

Eukaryotic cells require constant supply of ATP for life processes. Mitochondria and chloroplast are the energy-converting cell organelles that contribute in the production of ATP. Mitochondria are present in cells of plants, animals, and fungi. They produce ATP by food molecules in the form of chemical energy in a process known as oxidative phosphorylation. Chloroplasts found in plant cells produce ATP by using sunlight in a process known as photosynthesis. Both mitochondria and chloroplast produce proton gradient through electron transport chain that powers cellular reactions.