Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 27 - 27.3 - Concept Check: 1

Answer

A phototroph gets its energy from light, whereas a chemotroph gets its energy from chemical sources. An autotroph gets its carbon from CO2, HCO3-, etc, whereas a heterotroph gets its carbon from organic nutrients. The four nutritional modes are as follows: photoautotrophic, photoheterotrophic (which is unique to prokaryotes), chemoautotrophic (which is also unique to prokaryotes), and chemoheterotrophic.

Work Step by Step

Consider the four nutritional modes and categorize them according to which are unique to prokaryotic cells (photoheterotrophic and chemoheterotrophic).
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