Biology: The Unity and Diversity o...

15th Edition

Cecie Starr + 3 others

ISBN: 9781337408332

Textbook Problem

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Nitrogen-fixing bacteria live throughout the ocean, from its sunlit upper waters to 200 meters (650 Feet) beneath its surface. Recall that nitrogen is a limiting factor in many habitats. What effect would an increase in populations of marine nitrogen-fixers have on carbon uptake and primary productivity in those waters?

Summary Introduction

To explain: The effect that increasing population of marine nitrogen fixers has on carbon uptake and primary productivity in those waters.

Concept introduction: Nitrogen is present in gaseous form of nitrogen accessible only to nitrogen-fixing prokaryotes. By the process of nitrogen fixation, some bacteria like nitromonas and archaea take up N₂ and incorporate it into ammonia that producers can take up and use.

Explanation

Nitrogen cycle involves movement of nitrogen gas among the soil, atmosphere, water, and food webs. Nitrogen fixation process is done by some nitrifying bacteria. If in an aquatic ecosystem the number of nitrogen-fixing bacteria increases, it results in algal bloom and eutrophication...

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Biology: The Unity and Diversity o...

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Biology Biology: The Unity and Diversity of Life (MindTap Course List)15th Edition

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