12/01/2014 B2 – Keeping Healthy W Richards The Weald School (OCR 21 st Century)
Super-bugs are on the rise Infection is the #1 cause of death worldwide and #3 cause of death in USA 25 years ago 80% of infection controlled by antibiotics.
Lesson 2: Microbial Growth January 20, 2015. Microbial Growth Microbial growth refers to the increase in the number of cells and not the cell size – As.
THE IMMUNE STYSTEM. The Immune System The body must defend itself against potentially dangerous viruses, bacteria and other pathogens. It must also.
Immune System Chapter 21. Immune System Functional body system – Structures are cells not organs – Provides immunity Recognizes ‘self’ from ‘non-self’
Journal: Describe how DNA is replicated. Q. What is the shape of DNA? A. Double Helix.
06/12/2015 B2 – Keeping Healthy M Barker Shirebrook Academy (OCR 21 st Century)
Cell Composition 70-90% water Organic chemistry key to the construction of cells is inherently linked to the properties of water vs. organic compounds.
Water Pollution and Eutrophication Pathogens Organic wastes Sediment Chemical pollutants Nutrients.
Bacterial Motility Hugh B. Fackrell. 2 8/5/2015 Presentation Outline l Bacterial Flagella l Location l Function l Structure l Bacterial vs eukaryotic.
Immune System By. Amanda, Iva, Tavey, Natsumi. Contaminants 0 Cells 0 Proteins 0 Tissues 0 Organs 0 Blood vessels 0 Leukocytes.
A Visit to the Zoo. What is a Zoo? A zoo is a park that cares for many animals that live on land. People enjoy zoos because we can learn about other parts.
