Infectious diseases -Malaria
malaria is caused by a single celled organism called the organism is transmitted from one person to another
Infectious diseases
Why infectious diseases are the leading causes of death in developing countries infectious disease are communicable/transmittable; pathogens spread
Infectious diseases – Cholera
Cholera is a water-borne disease caused by a bacterium. It often appears in a population following a natural
Health and diseases drugs
Drugs any man-made chemical taken into the body, (broadly) any chemical substance taken into the body; but
Smoking and diseases
Effects of tar in tobacco smoke on the gaseous exchange system stimulates extra cell division +thickening of the
Introduction to human health
Describe whether health is more than simply the absence of a disease complete physical, mental and social being
Human health and diseases – Diet
A balanced diet A balanced diet is one which contains adequate amounts of all the necessary energy and
Gaseous exchange – HHD
The gaseous exchange system links the circulatory system with the atmosphere – It is adapted to Clean and
Alcohols and Carboxylic Acids
Alcohols Alcohols are a group of compounds that have a hydrocarbon chain attached to an -O-H group. The___