Question

Can someone please confirm 67, 70, 72,73,and 76

Answer 1

67.Answer-(E)-all of above are true,

(A)-Paul Ehrlich is the father of chemotherapy,He was awarded Nobel Prize in for his contributions to immunology.The magic bullets of salvarsan to treat syphilis.

(B)-Sulfonamide-are first major group of antimicrobial also called sulphonamides, sulfadrugs or sulpha drugs. This sulfa drugs are antibacterial sulfonamides are synthetic antimicrobial agents.

(C)penicillin- was the first true antibiotic, was discovered by Alexander Fleming.

(D)-selective toxicity is harmful for the microbs ehich is parasiteor targets sites that are relative specific to the microorganism or responsible for infection.

70-Answer-facultative anaerobs

oxygen is an important for facultative anaerobic bacteria, oxygen controles the expression of genes positively or negatively.The expression of anaerobic respiration of E. coli is controlled by the positive gene.

72-E-Filteration is most effective for sterlizing tubes containg liquid growth media for bacteriological studies, Because of other method kill to bacterial cell.

73.E-all are true,

Cephalosporins disrupt synthesis of the peptidoglycan in bacterial cell wall,

Cephalosporins have broad-spectrum activity by genration to genration.

Cephalosporins have diffrent different genration class containing  cefaclor is classed as a first-generation cephalosporin, cefbuperazone, cefminox, and cefotetan are classed as second-generation cephalosporins,Cefmetazole and cefoxitin are classed as third-generation.