Edexcel GCSE Biology Topic 5 Health, disease and the development of medicines overview quiz quiz

Simply not being ill, with no other factors mattering at all

Having a lot of money and being able to afford private doctors

A state of complete physical, mental and social well-being

Being completely free of all bacteria living in or on the body

A virus

A bacterium

A fungus

A protist

Type 2 diabetes

Measles

Bacterial pneumonia

Influenza

Lytic hides quietly in the host DNA; lysogenic bursts the host cell open

Lytic bursts the host cell; lysogenic hides quietly in the host DNA

Both pathways burst the host cell open immediately after entering it

Both pathways hide dormant in the host DNA forever and never burst it

With white blood cells that travel through the plant and engulf invading pathogens

By making antibodies that bind to the antigens on the pathogens

With physical barriers such as a cuticle and bark, and chemical defences

By taking antibiotics that they absorb from the surrounding soil

The hairs lining the nose

Cilia

Mucus

Stomach acid

An antigen is a foreign marker on a pathogen; an antibody is a protein the body makes to bind it

They are exactly the same thing and the two words can be used interchangeably in every case

An antigen is a protein made by the body, while an antibody is the foreign marker found on the pathogen

Both the antigen and the antibody are made by the pathogen to help it attack the body's cells

They store food and energy reserves for the body to draw on while it is fighting off an infection

They remain after an infection and make a faster, larger antibody response on re-exposure

They carry oxygen around the body to the cells fighting off the infection

They digest pathogens directly but can only ever do this one single time

It injects ready-made antibodies that protect the person for the rest of their life

It kills all of the bacteria already living in the body so that none of them are left behind to cause any illness

It contains a dead or inactive pathogen that triggers the body to make antibodies and memory cells

It removes the antigens from the pathogen so the immune system can no longer detect it

Viruses are simply far too big for the antibiotic molecules to attack them

Antibiotics only work inside plant cells and cannot work in the human body

Viruses are not real pathogens and so cannot make a person ill in the first place

Antibiotics inhibit bacterial cell processes that viruses do not have

78.5 mm squared

15.7 mm squared

31.4 mm squared

25 mm squared

Discovery

Clinical testing

Preclinical testing

Manufacturing