Question

Chloroplasts of green algae evolved from ___________.

   Chloroplasts of green algae evolved from ___________.

Biology: The Unity and Diversity of Life

Biology: The Unity and Diversity of Life

Cecie Starr, Ralph… 12th Edition

Chapter 22, Problem 6

Instant Answer

Solved by Expert Eleanor Behling

06/04/2020

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Chloroplasts are the organelles responsible for photosynthesis in plants and algae. To determine what chloroplasts of green algae evolved from, we can look at the process of endosymbiosis. Endosymbiosis is the theory that suggests that eukaryotic cells evolved Show more…

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Chloroplasts of green algae evolved from ___________.

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Key Concepts

Endosymbiotic Theory

This theory explains how certain organelles in eukaryotic cells, such as mitochondria and chloroplasts, originated from free-living prokaryotes that were engulfed through a symbiotic process. It provides a foundational understanding of how complex cells evolved by integrating and utilizing the metabolic capabilities of these prokaryotes.

Primary Endosymbiosis

Primary endosymbiosis is the process in which a eukaryotic host cell engulfed a free-living prokaryote, such as a cyanobacterium, which then became a permanent resident within the host. This event is crucial to understanding the origin of chloroplasts in photosynthetic eukaryotes like green algae.

Cyanobacteria

Cyanobacteria are a group of photosynthetic bacteria known for performing oxygenic photosynthesis. Their engulfment by an early eukaryotic cell is widely regarded as the key event that led to the evolution of chloroplasts, making them central to the study of cellular evolution and the development of complex life.

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