BELK SCIENCE F/LIFE-MASTRG. BIOL.AC+EBK
6th Edition
ISBN: 9781323907634
Author: BELK
Publisher: PEARSON
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Chapter 5, Problem 3AAATB
Summary Introduction
To write:
The importance of maintenance of oxygen at 16% in the atmosphere.
Introduction:
The oxygen is an important component of the atmosphere. Out of total gases in the atmosphere, the oxygen occupies almost 16% fraction. The oxygen is a reactive gas and reacts with many agents present on earth. The main source of the atmospheric oxygen is photosynthesis.
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In the Stanley Miller and Harald Urey designed experiments that tested Alexander Oparin's and J.B.S. Haldane's hypothesis that conditions on the primitive Earth favored chemical reactions that synthesized more complex organic compounds from simpler organic precursors. Miller and Urey used an apparatus that recreated the conditions of what a primitive Earth was thought to consist of at the time. Methane, hydrogen , and steam were all Included to recreate conditions similar to that of a primitive Earth. Their goal was to create complex organic molecules from the simple organic molecules that were believed to be part of primitive Earth's makeup. The Miller- Urey experiment was run for a week and the samples collected were analyzedAnalysis showed that some of the carbon in the apparatus was converted to amino acids molecules, In later experiments , similar to Miller and Urey's, it has been shown that it is possible to form all 20 amino acids commonly found in…
Chapter 5 Solutions
BELK SCIENCE F/LIFE-MASTRG. BIOL.AC+EBK
Ch. 5 - Add labels to the figure that follows, which...Ch. 5 - Carbon dioxide functions as a greenhouse gas by...Ch. 5 - Prob. 3LTBCh. 5 - Prob. 4LTBCh. 5 - Stomata on a plants surface ___________. prevent...Ch. 5 - Prob. 6LTBCh. 5 - Prob. 7LTBCh. 5 - Which of the following human activities generates...Ch. 5 - Prob. 9LTBCh. 5 - Prob. 10LTB
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