ch.15 human health

what is health

being physically, mentally, and socially well and free of illness or injury

what factors effect health?

inherited-genetic illness (breast cancer)

environmental-airquality(nct)-clean drinking water(filter)

lifestyle-exercise,misuse of substances

what are seven nutrients

carbohydrates, proteins, fats, vitamins, minerals, fibre, and water.

Function of protein and carbohydrates

growth and repair, energy

examples of micro-oragnisms that affect health(3)

bacteria, fungi and viruses

good and bad bacteria

G-yogurt,cheese.B-TB

good and bad fungi

G-antibiotics, mushrooms. B-spoil,poisionus mushrooms

what are viruses made from

DNA and a protein coat

how does the immune system fight infection

skin,whitebloodcells detect bacteria and viruses,antibodies engulf viruses, antibodies help body kill bacteria(not viruses)

what do vaccienes do

provide antibodies and memory cells, they recagnise that infection and produce antibodies.