Skip to main content

Currently Skimming:

Chapter 1: Frontiers of Biology
Pages 32-35

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 32...
... For centuries, students of biology, in considering the diversity of life, its seeming distinction from inanimate phenomena, and its general inexplicability, found it necessary, in their imaginations, to invest all living objects with a mysterious life force, "vitalism." But in the late eighteenth century, Lavoisier and Laplace were able to show, within the considerable limits of error of the methods available to them, that the recently formulated laws of conservation of energy and 32
From page 33...
... How does a single fertilized egg utilize its genetic information in the wondrous process by which it develops into a highly differentiated multicellular creature of many widely differing cell types? Flow do differentiated cell types, combined to form organs and tissues, cooperate to make their distinct contributions to the welfare of the organism?
From page 34...
... Analytical tools such as electrophoresis (separation of molecules by virtue of differences in their electrical charge) , ultracentrifu~ation (separation by virtue of differences in mass ~ chromatography (separation bv virtue of their varying affinities for adsorption onto diverse ~ ~ , , _ solid surfaces combined with their varying SolUclllly in diverse solvents)
From page 35...
... Domestic rodents-mice, rats, guinea pigs have been employed on a large scale because they are cheap, breed relatively easily in captivity, are available in genetically homogeneous stocks, offer useful models of human disease states, and are now more thoroughly understood than are most other animal species. The cellular events of viral infection have been elucidated through detailed examination of infection of bacteria with bacteria-specific viruses, the bacteriophages.


This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More information on Chapter Skim is available.