An organism isolated from your patient is described as an an

An organism isolated from your patient is described as an anaerobic gram positive spore forming rod. Which organism could this be: (a) Staphylococcus aureus (b) Clostridium tetani, (d) Bacillus anthracis, (d) Corynebacterium diphtheriae, (e) Mycobacterium tuberculose. An example of a differential solid medium used for gram negative rods is: (a) meat infusion, (b) nutrient agar, (b) MacConkey\'s agar, (c) EMB agar, (d) Wood agar, (c) chocolate agar. Binomial scientific nomenclature means each organism is identified using the name of its(a) a tax a and a domain, (b) a class and order. (c) a genus and species, (d) a family and genus, (e) a division or phylum. All of the following are the results of fixation EXCEPT: (b) the morphologic details arc preserved, (c) tissues are safe to handle (d) the organism is protected in transport medium, the technician is protected from infection. A suspension of carbon particles is: (a) used for fat stains, (b) used for negative staining. (c) includes India ink, (d) filtered to produce nigrosine, (e) A and D are Correct, (f) B, C and D are correct, (g) C and D arc correct. Although some Actinomycetes are considered partially acid fast/microbiologists usually arc referring to which of the following when they describe an organism as acid fast: (a) Streptococcus, (b) Mycobacterium, (c) Staphylococcus, Clostridium, (c) Mycoplasma A clear association between contamination of the attendants\' hands and childbed fever infections in maternity wards was demonstrated by: (a) Holmes, (b) Semmelweis, c Lister, (d) Pasteur, (e) Koch

Solution

Ans23 An anaerobic organism having gram positive spore forming rod is Clostridium tetani which causes the tetanus infections known for its symptoms of muscle spasms and lockjaw.So the correct option is (b)

Bacillus anthracic though is a gram positive forming rod but is an aerobic bacteria.

Ans 24.An example of an differential solid medium used for gram negative bacteria is MacConkey agar which is used to differentiate between gram negative bacteria while inhibiting the growth of gram positive bacteria . So the correct option is (b)

Ans 25 . Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of twoparts.The first part of the name identifies the genus to which the species belong and the second part identifies the species within the genus. For example human belong to the genus homo and within the genus to the species Homo Sapiens. So the correctoption is(c )

Ans 26.The steps which are involved in result of fixation are

i) the morphological details are preserved

ii) tissues are safe to handle

iii) the organism are protected in transport medium

iv) Enzyme activity spots

So the one which is not a result of fixation is the technician is protected from infection. So the correct option is e)

Ans 27. A suspension of carbon particles is used for fat stains

Ans 29. A clear association between contamination of the attendants hands and childberth fever was demonstrated by Semmelweis.