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
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The Miller- Urey Experiment
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…
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?
At a time before life existed on Earth, our planet's atmosphere contained extremely little or no
Question 2 options:
a)
nitrogen gases
b)
water vapor
c)
carbon dioxide
d)
gaseous oxygen
e)
noxious gases
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Explain why life on Earth is carbon-based rather than, for example, hydrogen- or oxygen-based.arrow_forwardIf space exploration revealed a planet that had the water, sunlight, and climate, necessary to maintain good plant life, would it be possible to produce oxygen and food necessary to sustain human life?arrow_forwardAbout how much mercury was emitted by fossil fuel combustion in Asia? A.)340 tons B.)0 tons C.)40 tons D.)525 tonsarrow_forward
- 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_forward(a) It can be argued that, if life were to exist elsewhere in the universe, it would require some process like photosynthesis. Why is this argument reasonable? (b) If the starship Enterprise were to land on a distant planet and find no measurable oxygen in the atmosphere, could the crew conclude that photosynthesis is not taking place?arrow_forwardExtremophiles are microorganisms that can survive and proliferate in extreme environments. One group of such microorganisms are lithotrophs. These are found deep beneath the Earth's surface, living on rocks under anaerobic conditions and surviving on CO2 as their sole source of carbon. Imagine that you are studying a newly discovered lithotroph and are trying to determine what it uses as a source of electrons for reducing CO2 and for producing energy. Which one of the following conditions must be met for a molecule to serve as a useful electron donor? Oxidation of the molecule occurs with a decrease in free energy. Oxidation of the molecule occurs with an increase in free energy. Reduction of the molecule occurs with a decrease in free energy. O Reduction of the molecule occurs with an increase in free energy.arrow_forward
- The pure “fire air” consumed by a burning candle in a sealed glass jar, or by a mouse during aerobic respiration (in experiments conducted by Joseph Priestley), contains which of the following elements? hydrogen and carbon (derived from the C6H12O6 produced by plants during photosynthesis) carbon and oxygen (derived from the CO2 consumed by plants during photosynthesis) carbon only (derived from the C6H12O6 produced by plants during photosynthesis) hydrogen only (derived from the H2O produced by plants during photosynthesis) oxygen only (derived from the O2 produced by plants during photosynthesis)arrow_forwardWhat is the source of molecular oxygen in Earth’s atmosphere?arrow_forwardDescribe the cycle of carbon (C), nitrogen (N) or phosphorus (P) (only one) and include one paragraph overview, explaining the movement of the compounds of this element between the Earth’s spheres (including relative amounts) and how these movements are accompanied by changes in chemical forms.arrow_forward
- Cell respiration and photosynthesis are distinct metabolic processes that take place in the mitochondrion and chloroplast, respectively. While these two processes are separate, they share things in common. When one looks at the overall equations for cell respiration and photosynthesis, one sees how they are near opposites in terms of the starting and ending materials. In 300-400 words, describe this “near opposite” relationship between cell respiration and photosynthesis. What are the starting and ending materials in each process, and what kind of energy transformation is taking place?arrow_forwardYour science teacher says that matter is conserved in the process of cellular respiration. What does he mean by that? (a) None of the atoms in the food that we eat are destroyed during the process, and no new atoms are created in the formation of carbon dioxide, water and ATP (b) None of the molecules in the food are destroyed during the process, and no new molecules are created after the reaction between glucose and oxygen (c) Molecules in our food are destroyed, and new molecules, of carbon dioxide, water and ATP are created (d) None of the matter, whether solid, liquid, or gas, changes states during the process.arrow_forwardIt has been estimated that mitochondria occupy 20% of the volume in the human body. For a 70- kg adult, the average number of mitochondria has been estimated to be 1 × 10 (10,000 trillion). Using this information, provide a rough estimate of the average mass of a mitochondrion.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage LearningBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
What is Homeostasis? | Physiology | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=quQr6X1Q58I;License: CC-BY