1 Introduction to Biology Copyright Cmassengale. 2 Biology – The Study of Life Life arose more than 3.5 billion years ago First organisms (living things)
Thurs review Signal transduction mechanisms –Gated ion channels Neuronal signaling, muscle contraction nACh receptors, Na + channels, K + channels, Ca.
Wake-up 1.Which macromolecule functions in short term energy and structure? 1.Explain the difference between Benedict’s and Biuret’s.
Metabolism. I. Energy A. Metabolism- Sum of all biochemical pathways B. Anabolic Pathways 1. Consume energy 2. Build complex molecules 3. CO 2 + H 2 O.
1 What is Biology ? Study of Life Bios- =life -logy = study of 2.
Themes in Biology. Biology- the study of all living things Properties of Living Organisms 1. Cellular structure and function cell: basic unit of structure.
1.Organizatio n -presence of one or more cells - a cell is the smallest unit that can perform all life’s processes - unicellular = one cell - multicellular.
A TOUR OF THE CELL …everything you wanted to know about cell organelles but were afraid to ask!
Anatomy-The structure Physiology – How it works A. Gross – Collective (whole) B. Microscopic anatomy 1. Cytology - cellular 2. Histology – study of tissue.