FHS Biology Logo

Honors Biology-Dr. Langdon
Framingham High School

email:  rlangdon@framingham.k12.ma.us
voicemail extension: 27627 (email preferred)
Course Guidelines in Word or PDF Format

Cellular Biology


  • Cell Biology Homework  Word | PDF KEY Word | PDF


Exam Preparation

Interesting Links


Endothelial cells, magnified 100 times.  Endothelial cells are a basic cell type that lines the inside of hollow organs, like your blood vessels and digestive system.

These cells are fluorescently stained, using chemicals hat bind to specific cellular structures and then fluoresce a particular color when excited with laser light.