Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
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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Chapter 5 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
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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- Where Do the O Atoms in Organisms Come From? Name three principal inorganic sources of oxygen atoms that are commonly available in the inanimate environment and readily accessible to the biosphere.arrow_forwardOxygen is necessary for the evolution of complex forms of life, What organisms were responsible for changing the carbon cycle by producing oxygen. What was a (likely) major negative consequence of that? Lastly, what is the geological evidence that large quantities of oxygen were produced billions of years ago?arrow_forwardThe following are the six most common elements in the human body: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Each of these elements is heavier than hydrogen and helium. Explain how and where these elements formed.arrow_forward
- Animals breathe in oxygen. What is this atmospheric oxygen used for in the human body? (Give the name of the process where atmospheric oxygen is used and explain what happens to the atmospheric oxygen molecule.)arrow_forwardExplain why life on Earth is carbon-based rather than, for example, hydrogen- or oxygen-based.arrow_forwardIf 02 is labeled with an isotope, Oxygen 18, what molecule with contain Oxygen 18 when cellular respiration is completed? Select the best answer A) Water B) Carbon Dioxide C) NADH D) ATP E) Pyruvate F) Acetyl CoAarrow_forward
- Animals obtain energy through a series of chemical reactions in which sugar (C6H12O6) and oxygen gas (O2) are reactants. This process produces water (H2O) and carbon dioxide (CO2 ) as waste products. How might you use a radioactive isotope to find out whether the oxygen in CO2 comes from sugar or from oxygen gas?arrow_forwardwhy is all the carbon on earth not used if every living thing requires itarrow_forwardHuman beings do not produce energy by photosynthesis, yet this process is critical to our survival. Explainarrow_forward
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