Chapter 21.2, Problem 10A

Summary Introduction

Introduction:

Gravitropism or geotropism is defined as the growing movement or turning off part of the plant, such as stem, shoot, or root, in response to the gravitational force. Generally, roots grow towards the gravity (positive gravitropism), while stems grow away from the gravity (negative gravitropism). Auxin, a plant hormone, plays an important role in gravitropism.