Chapter 20, Problem 2RQ

Summary Introduction

To review:

The difference in primary, secondary, and tertiary symbiont algae concerning nutrition and cell structure.

Introduction:

Algae is the simplest group of eukaryotic autotrophs present in the kingdom Plantae. They possess thalloid structure and hence, lack true root, stem, and leaves. Algae are believed to be evolved from the cyanobacteria. They contain photosynthetic pigments to carry out photosynthesis. Unlike cyanobacteria, they are autotrophic. Algae is the chief producer in the marine and freshwater ecosystem. The endosymbiont algae are mutualistic algae that form mutual association with other cells or organisms.