Statistics for A Level Biology - Communicable Diseases

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General Stats

This quiz has been taken 241 times
The average score is 10 of 36

Answer Stats

Definition	Keyword	% Correct
A microorganism that causes disease	Pathogen	75%
An organism that carries a pathogen from one host to another	Vector	66%
Swelling and redness of tissue caused by infection	Inflammation	57%
A rapid spread of disease through a high proportion of the population	Epidemic	47%
Passing a pathogen from host to new host, with no immediary	Direct transmission	45%
A large polysaccharide deposit that blocks old phloem sieve tubes	Callose	42%
Passing a pathogen from an infected individual to an uninfected individual	Transmission	40%
Specific proteins released by plasma cells that can attach to pathogenic antigens	Antibodies	37%
A type of white blood cell that engulfs foreign matter and traps it in a large vacuole (phagosome), which fuses with lysosomes to digest the foreign matter	Neutrophil	36%
Immunity achieved when antibodies are passed to the individual through breast feeding or injection	Passive	35%
Derived from the B lymphocytes, these are cells that manufacture antibodies	Plasma cells	35%
Selection of a specific B or T cell that is specific to the antigen	Clonal selection	34%
Passing a pathogen from host to new host, via a vector	Indirect transmission	34%
Antibodies that render toxins harmless	Anti-toxins	33%
Immunity that is achieved through normal life processes	Natural	30%
A cell that isolates the antigen from a pathogen and places it on the plasma membrane so that it can be recognised by other cells in the immune system	Antigen-presenting cell	29%
Immunity that is achieved as a result of medical intervention	Artificial immunity	29%
Cells that remain in the blood for a long time, providing long-term immunity	B memory cells	28%
Cells that attack and destroy our own body cells that are infected by a pathogen	T killer cells	23%
A way of stimulating an immune response so that immunity is achieved	Vaccination	23%
An increase in the number of cells by mitoic cell division	Clonal expansion	22%
Cells that remain in the blood for a long time, providing long-term immunity	T memory cells	22%
Proteins that bind to the antigen on a pathogen and then allow phagocytes to bind	Opsonins	20%
Antibodies that cause pathogens to stick together	Agglutinins	19%
Hormone-like molecules used in cell signalling to stimulate the immune response	Cytokines	19%
A more rapid and vigorous response caused by a second or subsequent infection by the same pathogen	Secondary immune response	17%
The intial response caused by a first infection	Primary immune response	16%
A chemical which prevents the growth of microorganisms	Antibiotic	15%
Those that prevent pathogens entering the body	Primary defences	15%
Cells that release signalling molecules to stimulate the immune response	T helper cells	15%
Vaccinating all the people i the immediate vicinity of the new case	Ring vaccination	12%
Where the immune system is activated and manufactures its own antibodies	Active immunity	11%
Using a vaccine to provide immunity to all or almost all of the population at risk	Herd vaccination	11%
Cells that are involved with inhibiting or ending the immune response	T regulator cells	11%
Specialised epithelial tissue that is covered by mucas	Mucus membrane	10%
Signalling molecules that are used to communicate between different white blood cells	Interleukins	6%