Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 2, Problem 15PS
Animals obtain energy through a series of
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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?
What molecule is considered as a by-product of photosynthesis which is used by mammals to breathe?
C6H12O6
CO2
H2O
O2
The movement of energy between living organisms is a matter of atoms, molecules and compounds being built into larger molecules or being broke into smaller ones. Reviewing the two equations for energy transference, which one is building energy?
6CO2 + 6H2O + energy --------> C6H12O6 + 6O2
C6H12O6 + 6O2 ---------> 6CO2 + 6H2O + energy
Chapter 2 Solutions
Campbell Essential Biology (7th Edition)
Ch. 2 - An atom can be changed into an ion by adding or...Ch. 2 - If you change the number of _____ the atom becomes...Ch. 2 - A nitrogen atom has 7 protons, and the most common...Ch. 2 - Why are radioactive isotopes useful to tracers in...Ch. 2 - What is chemically nonsensical about this...Ch. 2 - Why is it unlikely that two neighboring water...Ch. 2 - Which of the following is not a chemical reaction?...Ch. 2 - Some people in your study group say they dont...Ch. 2 - Explain how the unique properties of water result...Ch. 2 - Explain why it is unlikely that life could exist...
Ch. 2 - A can of cola consists mostly of sugar dissolved...Ch. 2 - For each statement, identify which major theme is...Ch. 2 - For each statement, identify which major theme is...Ch. 2 - For each statement, identify which major theme is...Ch. 2 - Animals obtain energy through a series of chemical...Ch. 2 - Interpreting Data. As shown in Figure 2.17,...Ch. 2 - Critically evaluate this statement: Its paranoid...Ch. 2 - A major source of the CO2 that causes ocean...
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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
- 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_forwardWhich of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.arrow_forwardWhich of the summary statements below describes the results of the following reaction? C6H1206 + 6 O2 → 6 CO2 + 6 H2O + Energy O C6H1206 is oxidized and O2 is reduced. O 02 is oxidized and H20 is reduced. O CO2 is reduced and 02 is oxidized. O 02 is reduced and CO2 is oxidized.arrow_forward
- Photosynthesis is defined as the chemical process, wherein carbon dioxide in the presence of water and radiant energy gets converted to glucose (chemical energy), giving out oxygen as byproducts. In the equation, the combining reactants and resulting products are expressed along with their respective numbers of molecules. Putting this in a simplified formula, the following equation represents this process. CO2 + H2O + Light energy → C6H12O6 + O2 Considering this equation, how plant lovers (plantitos and plantitas) able to cultivate their plants?arrow_forwardRadioactive isotopes are routinely used to investigate processes in living things. In 1941, biologists exposed photosynthesizing cells to water containing a heavy oxygen isotope, designated 18-O. The labelled isotope appears in the oxygen gas released in photosynthesis, demonstrating that the oxygen came from water. Explain where the 18-O would have ended up if the researchers had used 18-O-labelled carbon dioxide.arrow_forwardPhotosystem I (in the green sulfur bacteria) uses either dim underwater volcanic light or dim sunlight to strip away electrons (and protons) from which of the following substrate molecules? C6H12O6, H2O, and CO2 only CO2 only C6H12O6, and H2S only H2S only CO2 and H2O onlyarrow_forward
- The above atmospheric gas or fluid does not contribute any of its atoms to which of the following product molecules (during growth of green plants using photosynthesis, like the willow tree)? diatomic oxygen gas C6H12O6 O2 glucose carbon dioxide gasarrow_forwardThis space station has plants growing inside it, and astronauts who eat the fruits and vegetables from those plants. Because it is in space, the station is sealed so no material can get in or out. The space station is in Earth’s shadow, so no light is getting into it. The sensors in the space station show that carbon dioxide in the air is increasing. What is happening to the energy storage molecules in the plants and humans in the space station?arrow_forwardThe 2-carbon alcohol called ethanol is most common because it's made from something else very common: sugar! (this is also why ethanol is the one alcohol that's not toxic, our bodies can metabolize it). Ethanol is mass-produced in factories on an industrial scale, and is commonly used as a fuel (or mixed as an additive into other fuels). The combustion reaction below shows that 6 molecules of oxygen is required to completely burn two molecules of ethanol. How many molecules of carbon dioxide are produced after burning ethanol? ethanol + oxygen carbon dioxide + water 20,H OH + 60, + 6H,0 4CO. 2(e)arrow_forward
- During aerobic respiration in the mitochondria of eukaryotes, which product molecules contain the oxygen atoms that started out in substrate diatomic oxygen gas molecules? cell biology carbon dioxide only C6H12O6 only glucose only CO2 only H2O onlyarrow_forwardHydrogen peroxide (H2O2) is naturally formed in living organisms, however it is very harmful and is broken down immediately by catalase into water and oxygen. This reaction occurs in the peroxisome, an organelle present in both plant and animal cells. Design an experiment to determine which of the following three food samples contains the highest concentration of catalase: dried potato, ground meat, and fresh ground leavesarrow_forwardThe 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…arrow_forward
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