What happens to your body if you take in too much energy and too few vitamins?
You will become malnourished
You will become obese
You will die
Why do people become obese?
People are unhealthy
People eat to much with too little exercise
Why do starving people find it hard to walk around?
Due to lack of vitamins and minerals
Eat to much
What are the food groups?
Carbohydrates , Protein , Fat , Fruit and Vegetables , Pizza
Carbohydrates , Protein , Fat , Fruit and Vegetables , Minerals and Vitamins
What are food groups?
Is it important that to have a balanced diet to have a healthy body?
Can Obesity lead to disease?
If so what disease?
Type 2 Diabetes
High Blood pressure
Can this problem be reduced?
If so how?
Eat less carbohydrates and exercise more
Eat less food and exercise more
How can people change their lifestyle to help lower their blood cholesterol levels?
Have more calcium
Exercising regularly will increase your metabolic rate?
There is something called 'Good Cholesterol'
There is something called 'Bad Cholesterol'
Good and bad cholesterol can be inherited
'Good' cholesterol is more likely to be inherited than 'bad' cholesterol
What are pathogens?
Bacteria and Viruses
Bacteria and Cheese
Pathogens cause infectious diseases?
How do pathogens make you feel ill?
When bacteria and viruses enter your body they reproduce rapidly and produce toxins
They destroy lims
Viruses live inside cells
Bacteria live inside cells
Was there a doctor called Semmelweiss
What did he discover?
Infection could be transferred from person to person in a hospital
What did he tell his staff?
To wash their hands between treating patients
To treat as many patients as possible in one hour
Why did it take a long time for others to accept the ideas of Semmelseiss?
Doctors did not take him seriously
No one liked him
How are many pathogens prevented from entering the body?
Mucus and stomach acid
White blood cells protect the body
How do white blood cells defend the body?
Antibodies kill infective bacteria in the body?
Penicillin is an antibiotic
It was discovered by Alexander Fleming in 1928?
Viruses are easy to kill
Treatment to viruses could damage the body cells
Painkillers and other drugs relieve the symptoms of a disease but not kill the pathogen?
Your immune system will usually overcome the viral pathogens
Why are antibiotics only able to kill bacteria?
Because they can
Because bacteria live outside the cells so antibiotics are less likely to damage the body cells
Why do industrial laboratories use 35 degrees celsius instead of 25 degrees celsius as in schools?
Because they are more professional
So they have more warmth and oxygen
How do you make sure that unwanted microorganisms do not contaminate a pure culture of bacteria?
kill all bacteria on equipment used and prevent microorganisms from the air getting into the equipment
Why do some pathogens spread rapidly?
Some pathogens, particularly viruses, can mutate resulting in a new change
Because they are fast
What is meant by vaccination?
Dead or inactive pathogens are used to make a vaccine, the antibodies produced by white blood cells recognise the antigen which will make the person immune to it
A syringe injected
What is an advantage of a vaccination?
Helps fight the virus
What is a disadvantage of a vaccination?
Be a wimp
Can cause serious side effects