
16 Nanosensors: Physical, Chemical, and Biological
phosphorous and sulfur. Enzymes are proteins produced by cells that act as
catalysts in living beings serving to accelerate biochemical reactions without
themselves being altered.
1.5 Biology
1.5.1 What Is Biology?
Biology is the science of life and of living organisms, including their pro-
cesses and phenomena (Campbell and Reece 2004). Organism is an individual
form of life, capable of growing and reproducing.
1.5.2 Subbranches of Biology
What are the main subbranches of biology? Botany and zoology. Botany is the
scientic study of all aspects of plant kingdom. Zoology deals with all aspect ...