ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Chapter 24.2, Problem 4CC
Summary Introduction
To describe:
The type of food eaten and meal taken by humans, if they had the capability of fixing nitrogen like cyanobacteria.
Concept introduction:
Cyanobacteria are blue-green algae that have the ability to fix atmospheric nitrogen by the process of nitrogen fixation. Nitrogen fixation is a mechanism by which the atmospheric nitrogen is converted to the ammonia inside the bacteria for deriving energy with the help of enzymes. If humans develop the ability to fix nitrogen inside their body, then they will not require a high protein diet, which contains amino acids in large amounts. Therefore, the diet of the humans should contain carbohydrates and lipids.
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Chapter 24 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 24.1 - What hypothesis did Miller test in his classic...Ch. 24.1 - How would the appearance of protocells have...Ch. 24.1 - Prob. 3CCCh. 24.1 - Prob. 4CCCh. 24.2 - Contrast the cellular and DNA structures of...Ch. 24.2 - Distinguish between the four major modes of...Ch. 24.2 - Prob. 3CCCh. 24.2 - Prob. 4CCCh. 24.3 - Although rare on a per gene basis, new mutations...Ch. 24.3 - Distinguish between the three mechanisms by which...
Ch. 24.3 - In a rapidly changing environment, which bacterial...Ch. 24.3 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 24.4 - Explain how molecular systematics and metagenomics...Ch. 24.4 - WHAT IF? What would the discovery of a bacterial...Ch. 24.5 - Explain how prokaryotes, though small, can be...Ch. 24.5 - Prob. 2CCCh. 24.5 - Prob. 3CCCh. 24.5 - Prob. 4CCCh. 24 - Which of the following steps has not yet been...Ch. 24 - Fossilized stromatolites A. more than 2.8 billion...Ch. 24 - Prob. 3TYUCh. 24 - Photoautotrophs use A. light as an energy source...Ch. 24 - Which of the following statements is not true? A....Ch. 24 - Prob. 6TYUCh. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 24 - FOCUS ON EVOLUTION In patients infected with...Ch. 24 - FOCUS ON ENERGY AND MATTER In a short essay (about...Ch. 24 - Prob. 11TYU
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- The process whereby nitrogen is brought into organic molecules is called.___________ nitrification denitrification nitrogen fixation nitrogen cyclingarrow_forwardA- Name 5 organisms that can carry out nitrification. B- Write the chemical reaction. C- What enzyme carries out the process? Briefly explain how it works.arrow_forward5. The following Figure for Question 5 shows a simplified Nitrogen Cycle driven entirely by microorganisms. (i) : (ii) : (iii) : (iv) : N₂ (V) : N₂O iv NO NH3 NO₂ (a) Name the five major nitrogen transformation processes numbered (i) to (v) in the simplified Nitrogen Cycle. ii iii NO₂ The figure for Question 5 Organic Nitrogenarrow_forward
- 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?arrow_forwardjust answer question --- dont need explanationarrow_forward20arrow_forward
- Think about the conditions (temperature, light, pressure, and organic and inorganic materials) that you may find in a deep-sea hydrothermal vent. What type of prokaryotes, in terms of their metabolic needs (autotrophs, phototrophs, chemotrophs, etc.), would you expect to find there?arrow_forwardChargaff´s experimentarrow_forwardWhich of the following approaches would be the most effective way to reduce greenhouse carbon dioxide? Increase waste deposition into the deep ocean Plant more environmentally-suitable plants Increase use of fuel sources that do not produce carbon dioxide as a by-product Decrease livestock agriculture.arrow_forward
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