| Quiz | 4.3.1.6 Human defence systems |
|---|---|
| Name | |
| Result | PASSED |
| Score | 42 / 46 (91.3%) |
| Passing score | 36.8 |
| Quiz took | 2 min 44 sec |
| Quiz finished at | 2023-04-25 16:16:50 |
Your skin acts as a barrier to pathogens and secretes _______ substances that kill pathogens
Hairs and ______ in your nose trap particles that could contain pathogens
Your trachea and bronchi can secrete _______, in order to trap pathogens
Your trachea and bronchi have ______ which waft mucus up to the back of the throat
The stomach produces ___________ which kills pathogens
If pathogens invade your body, your _______ kicks in to destroy them
When your white blood cells engulf and digest foreign cells, it is called
Invading pathogens have unique molecules on their surfaces called
Your white blood cells produce ________ to lock onto invading cells, in order to help other white blood cells find and destroy them
Antibodies will only lock onto specific
Antibodies are made of _________
If someone gets infected by the same pathogen again, they will rapidly produce antibodies to kill it. They are naturally _______ to that pathogen, so they will not get ill from it again
White blood cells can also produce _________ which counteract any toxins which are produced by pathogens
Vaccinations work by giving you a small amount of
______ in vaccines cause your body to produce antibodies
The _______ vaccine provides protection from three viruses all in one
After you have been vaccinated, your body is able to rapidly mass-produce ______ to kill off the pathogen
Big outbreaks of diseases are known as
If all of the people around you are vaccinated, but you aren't, you are still less likely to get the disease. This is because it is harder for the disease to spread. This is known as
Some drugs can _____ the disease by killing it. Other drugs such as painkillers just relieve some of the symptoms
Antibiotics kills
Antibiotics does not work against viruses, therefore should not be prescribed to patients who have
Bacteria that has mutated, so that antibiotics does not kill it, is known as being
You should always finish the full course of antibiotics, to ensure
In order to slow down the rate of development of resistant strains of bacteria, your doctor
Many plants produce a variety of chemicals in order to defend themselves against pests and pathogens. We often make these into
Alexander Fleming found some mould on a petri dish, which had an area around it which was free of bacteria. The substance he discovered is known as
A chemical developed from foxgloves is called _________ , and can be used to treat heart conditions
_____ is developed from a chemical in willow and can be used as a painkiller and lower fever
In the first stage of drug testing, drugs are often tested on
Drugs that treat blood pressure cannot be tested on tissues or cells because
Finding out whether a drug produces the required effect is known as
Drugs are tested on _______ to find out if it is harmful
Drugs are tested on _________ to find out correct dosages
Drugs in Britain must be tested on at least _____ different mammals
When a drug passes tests on animals, it is then tested on humans in
In order to test if a drug has any harmful effects, we can test them on
When testing on humans, we start testing with
The dosage that is the most effective and has the least amount of side effects is known as the
A drug which has no effect is known as a
Sometimes, patients start to feel better just because they believe they are being treated. This known as
If the patient does not know whether they are taking the drug or a placebo, the trial is
If neither the patient nor the doctor knows whether the patient is receiving the drug or a placebo, the trial is
When other professionals also carry out their own tests on drugs, it is known as
Antibodies are made by
B-lymphocytes are