Internet Activities

Lipids
(http://esg-www.mit.edu:8001/esgbio/lm/lipids/lipids.html)

Basic information on phospholipids is offered at this site.
Question: Name the major component of cell membranes.
What does the term "amphipathic" mean?
How does this characteristic relate to the structure of cell membranes?

The Dictionary of Cell Biology
(http://on.to/cellbiology)

This site contains a friendly and comprehensive dictionary related to cytology, histology, and molecular biology.
Question: What role does aquaporin play in membrane transport?

Nucleic Acids
(http://esg-www.mit.edu:8001/esgbio/lm/nucleicacids/nucleicacids.html)

Diagrams of nucleotides and complementary base pairing in DNA are provided at this site.
Question: What does "complementary base pairing" mean?

Nucleic Acids
(http://www-medlib.med.utah.edu/NetBiochem/nucacids.htm)

This site describes the structure of nucleic acids, the semiconservative nature of DNA synthesis, DNA repair, RNA synthesis, and the three major types of RNA.
Question: Why is the replication of DNA referred to as being semi-conservative?

Cell Division: Binary Fission and Mitosis
(http://gened.emc.maricopa.edu/bio/bio181/BIOBK/BioBookmito.html)

This site provides a detailed text description of cell division.
Question: On a piece of paper, sketch and describe the stages of cell division.

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