When a substance is added to a solid medium which inhibits the growth of unwanted bacteria but permits the growth of wanted bacteria, it is known as differential medium enrichment medium enriched medium selective medium TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following bacteria dies quickly after drying? Treponema pallidium Staphylococcus aureus Pseudomonas aeruginosa Mycobacterium tuberculosis TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type? Streak plate technique Spread plate Both (a) and (b) Pour plate TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni? None of these Vacomycin Trimethoprim Polymyxin TRUE ANSWER : ? YOUR ANSWER : ?
The medium which allows the growth of more than one microorganisms of interest but with morphologically distinguishable colonies is known as differential medium enrichment medium selective medium none of these TRUE ANSWER : ? YOUR ANSWER : ?
Selective media facilitate growth of only one kind of organism. Saboraud medium is used to selectively isolate coliform bacteria acid fast organisms gram positive bacteria yeasts TRUE ANSWER : ? YOUR ANSWER : ?
Plate counts are often reported as thousands/ml cfu cfu/ml Both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
In the process of freeze drying, a dense cell suspension is placed in small vials and is frozen at -30 to -48°C -20 to -30°C -60 to -78°C -48 to -58°C TRUE ANSWER : ? YOUR ANSWER : ?
Stuart's transport medium is used for transport of specimen containing Neisseria gonorrhoeae Vibrio cholerae Shigella Salmonella TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following bacteria can grow in alkaline pH? Shigella Vibrio cholerae Lactobacilli Salmonella TRUE ANSWER : ? YOUR ANSWER : ?