Chapter 39.3, Problem 1CS

Summary Introduction

To predict: The similarity in the structure and functions of the tight junctions of the animal intestinal epithelial cells and the root endodermal cells in the plants.

Introduction: The tight junctions are present in the epithelial cells which help to seal the cells in the narrow band below the apical surface. These tight junctions consist of various types of proteins like adhesions, claudins and so on. They help in preventing any leakage or flow of ions apart from the selectively movable ions across the membrane of the cells.