Your metabolic rate is the rate of which chemical reactions occur in the body?
Your metabolic rate varies with ...
The amount of exercise you do
The proportion of muscle to fat in your body
What you eat for breakfast
Genetic factors
which type of cholesterol is bad for you?
LDL - low-density lipoprotein
HDL - high-density lipoprotein
Fill the gap ...... Compared to the mass of carbohydrates, the body needs (fill here) mass of vitamins and mineral ions.
A smaller
A greater
The same
What is a pathogen?
A disease causing micro-organism
A micro-organism
Infectious Bacteria
How does infectious bacteria make someone ill? [2 marks]
The bacteria releases toxins
they will multiply through out the body
they will rapidly multiply through out the body
The bacteria injects posion into the cells
Do antibiotics work on viruses?
What does MRSA stand for?
Methycillin Resistant Staphylococcus Aureus
Methycillin Resistant staphylococcus Acuteus
What do Painkillers do?
They makes us feel better while our immune system or antibiotics kill the pathogens.
They kill the viruses making us ill by surrounding them with walls of Fat.
Fill the gap ... The substances made by white blood cells to kill pathogens are called [fill here].
Antibodies
Antitoxins
Antibiotics
name 4 ways which the body prevents pathogens from entering the body.
Silia
Skin
eye lashes
Teeth
Ear wax
Urine
Can viruses be killed by antibiotics? Why?
No, because viruses need to be in inside the human cells to survive, so are inaccessible by the antibiotics
Yes, because they live on the outside of the throat and can be easily killed by antibiotics
No, because they mutate all the time and the antibiotics will not work on the newly mutated viruses
Do Phagocytes produce antibodies?
What cells help fight pathogens
White blood cells
Red blood cells
A person can be immunised against a disease by injecting them with an inactive form of a pathogen. Explain how this works? Choose the best answer.
White blood cells produce Antibodies which attack the inactive pathogen. If a active form of that pathogen enters the body the antibodies will remember and re attack quicker.
Our body fights the pathogen and remembers it if it comes back in.
