Read e-book online Biology: How life works PDF

By James Morris et al.

ISBN-10: 1464126097

ISBN-13: 9781464126093

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557 HOW DO WE KNOW? What is the evolutionary origin of 558 ? What role did symbiosis play in the origin of mitochondria? 559 ? How did the eukaryotic cell originate? 560 How did the eukaryotic cell originate?

190 ? How do cancer cells spread throughout the body? Extracellular matrix proteins influence cell shape and gene expression. 210 211 212 213 214 HOW DO WE KNOW? Can extracellular matrix proteins influence gene expression? 1 Cell Division 219 238 Most cancers require the accumulation of multiple mutations. 238 VISUAL SYNTHESIS Cellular Communities 240 ? 1 DNA Replication 248 220 Prokaryotic cells reproduce by binary fission. 220 Eukaryotic cells reproduce by mitotic cell division. 221 The cell cycle describes the life cycle of a eukaryotic cell.

Organic Molecules 39 15 Functional groups add chemical character to carbon chains. 5 Proteins are composed of amino acids. 40 Nucleic acids encode genetic information in their nucleotide sequence. 40 Complex carbohydrates are made up of simple sugars. 42 Lipids are hydrophobic molecules. 43 ? 6 How Did the Molecules of Life Form? The building blocks of life can be generated in the laboratory. 4 45 45 HOW DO WE KNOW? Could the building blocks of organic molecules have been generated on the early Earth?

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Biology: How life works by James Morris et al.

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