BIO 311 Chapter Notes - Chapter 1.9: Medlineplus, Garland Science, Lipid Bilayer
What is Biochemistry?
Definitions of biochemistry from the National Library of Medicine,
Medline Plus
i. Chemistry that deals with the chemical compounds and processes
occurring in organisms
ii. The chemical characteristics and reactions of a particular living
system or biological substance
Before we can begin to study the important concepts of biochemistry
we first need to review:
•Topics in inorganic and organic chemistry with particular importance for
biological systems, i.e. atoms and mole
Prokaryotes versus Eukaryotes
• Size: Prokaryotic cell dia. ~1 to 3 µm, eukaryotic cell dia. ~10 to 100 µm
• Organization: Eukaryotic cells are much more organized, with distinct cellular
organelles, e.g. the nucleus
• Organelles surrounded by their own membrane and have distinct functions - in
contrast, prokaryotes lack membrane-enclosed organelles
• Like a eukaryotic cell, a prokaryotic cell has a cell membrane, or plasma
membrane separating it from the outside environment - this membrane is a lipid
bilayer with a variety of proteins embedded in it
Table 1-3, p. 15
Prokaryotes versus Eukaryotes
Figure 1-18a Molecular Biology of the Cell, Fifth Edition (© Garland Science 2008)
The structure of a bacterium
• The bacterium Vibrio cholerae showing its simple internal organization. Like
many
other species, Vibrio has a helical appendage at one end -
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Definitions of biochemistry from the national library of medicine, Medline plus: chemistry that deals with the chemical compounds and processes occurring in organisms, the chemical characteristics and reactions of a particular living system or biological substance. Before we can begin to study the important concepts of biochemistry we first need to review: topics in inorganic and organic chemistry with particular importance for biological systems, i. e. atoms and mole. Prokaryotes versus eukaryotes: size: prokaryotic cell dia. Figure 1-18a molecular biology of the cell, fifth edition ( garland science 2008) The structure of a bacterium: the bacterium vibrio cholerae showing its simple internal organization. Like many other species, vibrio has a helical appendage at one end - Figure 12. 4 the biology of cancer ( garland science 2007) Erythrocyte: erthrocyte (red blood cell) most common type of blood cell, oxygen delivery system, no nucleus or mitochondria, cytoplasm consists mainly of hemoglobin.
