B6 & 7 Flashcards
How did Alexander Fleming discover penicillin
Noticed that bacteria was not growing where mould was growing
Mould made a chemical which killed bacteria
What are called monoclonal
If all the antibodies come from one type of cell
What use monoclonal antibodies
Pregnancy tests
Diagnose disease
Treat disease
How do monoclonal antibodies treat cancer
Some trigger the immune system
Some block receptors on cancer cell to stop them dividing
Carry radioactive substances
Give a disadvantage of a monoclonal antibody
Side effects
What is a causal mechanism
Explains how one factor influences another through a biological process
What is a tumour
A mass of abnormally growing cells
Give 3 causes of cancer
Ionising radiation
Carcinogens
Genetics
What does tobacco contain
Nicotine
Carbon monoxide
Tar
Give 2 problems with smoking
Blood carries less oxygen around body due to carbon monoxide
What causes diabetes
Obesity
What can alcohol do to a pregnant womans baby
Facial deformities
Learning problems
