Campbell Biology: Concepts & Connections (7th Edition)

Campbell Biology: Concepts & Connections (7th Edition)

Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey

Language: English

Pages: 920

ISBN: 0321696816

Format: PDF / Kindle (mobi) / ePub

Campbell Biology: Concepts & Connections, Seventh Edition–always accurate, always current, and always the most pedagogically innovative non-majors biology text. This bestselling text has undergone an extensive revision to make biology even more approachable with increased use of analogies, real world examples, and more conversational language. Using over 200 new MasteringBiology activities that were written by the dynamic author team, your students arrive for class prepared. The book and MasteringBiology together create the classroom experience that you imagined in your wildest dreams.

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role. Each oxygen atom ( 12 O2) accepts 2 electrons from the chain and picks up 2 H+ from the surrounding solution, forming H2O. Most of the carrier molecules of the chain reside in four main protein complexes (labeled I to IV in the diagram), while two mobile carriers transport electrons between the complexes. All of the carriers bind and release electrons in redox reactions, passing electrons down the “energy staircase.” Three of the ? ● Without oxygen to “pull” electrons down the electron

reproduce by a type of cell division called binary fission (“dividing in half ”). In typical prokaryotes, the majority of genes are carried on a single circular DNA molecule that, with associated proteins, constitutes Plasma membrane Prokaryotic chromosome Cell wall ᕡ Duplication of the chromosome and separation of the copies ᕢ Continued elongation of the cell and movement of the copies the organism’s chromosome. Although prokaryotic chromosomes are much smaller than those of eukaryotes,

difference? ● The experimental culture is deficient in one or more growth factors. For a plant or an animal to grow and develop normally and maintain its tissues once fully grown, it must be able to control the timing of cell division in different parts of its body. For example, in the adult human, skin cells and the cells lining the digestive tract divide frequently throughout life, replacing cells that are constantly being abraded and sloughed off. In contrast, cells in the human liver usually

interactions among component parts. 1.3 Cells are the structural and functional units of life. Eukaryotic cells contain membrane-enclosed organelles, including a nucleus containing DNA. Prokaryotic cells are smaller and lack such organelles. Structure is related to function at all levels of biological organization. Systems biology models the complex interactions of biological systems, such as the molecular interactions within a cell. Organisms interact with their environment, exchanging matter

is the addictive illegal drug known as “crank.” The other is a medicine for sinus congestion. How can you explain the differing effects of the two isomers? ● Isomers have different structures, or shapes, and the shape of a molecule usually helps determine the way it functions in the body. Structural formula Length. Carbon skeletons vary in length. 3.2 A few chemical groups are key to the functioning of biological molecules The unique properties of an organic compound depend not only on the

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