Quiz questions Flashcards
What is streptococci classed by?
Haemolysis
What is the common cause of pharyngitis and tonsilitis?
Strep. Pyogenes
What type of antimicrobial is neisseria meningitides?
Gram negative coccus
What is TB diagnosis aided by?
ZN stain of sputum
What is salmonella?
Gram negative bacillus
What is helicobacter pylori associated with?
Duodenal ulcers
What is malaria caused by?
Plasmodium falciparum
What are dermatophytes a common cause of?
Ringworms
What can serious fungal infection be treated with?
Intravenous amphotericin
What do penicillins and cephalosporins act on?
Cell wall synthesis
What is the B-lactams resistance in MRSA due to?
Altered penicllin binding proteins
What is viral infection associated with?
Lymphocytes and cytotoxic T cell response
What is phagocytosis?
Ingestion of antigen by macrophages and polymers
What are conjugate vaccines?
Vaccines that combine carbohydrates with proteins to improve the immune response
Name live attenuated vaccine
MMR
What should an infection be treated with?
An antibiotic with a high MBC
What is gentamicin associated with?
Otoxicity
What is an antiseptic?
A disinfectant that is safe enough to use on human skin
What is streptococcus pneumoniae an example of?
Gram-positive coccus
Bacterial DNA can be found where?
The chromosome and the plasmids
How is diagnosis of malaria made?
Visualisation of parasites in a peripheral blood film
What can the genetic component of viruses consist of?
DNA or RNA
What do cytokines and chemokines attract?
Inflammatory cells
What does nuclear pleopmorphism suggest?
Malignancy in a tumour
Y-linked conditions occur only in which gender?
Males
What can the sickle cell trait provide resistance to?
Malaria
Where are the telomeres situated in the chromosome?
At the ends
What are the darkly stained regions of chromosomes called?
Heterochromatin
Inflammation usually leads to an elevated count of what?
Neutrophilia E white cell count
Radionuclide imaging utilises what kinds of rays?
Gamma rays
What does the absence of a capsule suggest about a tumour?
It is malignant
Is bone a common site for metastatic carcinoma?
Yes
What charge do histone proteins have?
Positive
What is the state of having two identical alleles called?
Homozygous
The synthesis of a protein on a messenger RNA is referred to as what?
Translation
