This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
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Here is the meaning, function, and common uses for each drug: 1. Rifampicin Meaning/Class: An antibiotic belonging to the rifamycin class. Function: It works by inhibiting bacterial RNA synthesis, preventing bacteria from producing essential proteins and replicating. Helps with: Primarily used to treat tuberculosis, leprosy, and sometimes for prophylaxis against meningococcal disease*. 2. Ceftazidime Meaning/Class: A third-generation cephalosporin antibiotic. Function: It kills bacteria by interfering with the synthesis of their cell walls. Helps with: Effective against severe Gram-negative bacterial infections, including Pseudomonas aeruginosa infections, meningitis, and febrile neutropenia*. 3. Streptomycin Meaning/Class: An aminoglycoside antibiotic. Function: It inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit, leading to bacterial death. Helps with: Used mainly for tuberculosis (as a second-line drug), bacterial endocarditis, and plague*. 4. Azithromycin Meaning/Class: A macrolide antibiotic. Function: It stops bacterial growth by inhibiting bacterial protein synthesis. Helps with: Commonly used for respiratory tract infections (e.g., bronchitis, pneumonia), skin and soft tissue infections, and certain sexually transmitted infections* like chlamydia. 5. Amoxicillin Meaning/Class: A penicillin-class antibiotic (beta-lactam). Function: It kills bacteria by preventing them from forming proper cell walls. Helps with: A broad-spectrum antibiotic used for ear infections, strep throat, pneumonia, urinary tract infections, and H. pylori eradication*. 6. Ciprofloxacin Meaning/Class: A fluoroquinolone antibiotic. Function: It works by inhibiting bacterial DNA gyrase and topoisomerase IV, enzymes essential for bacterial DNA replication and repair. Helps with: Treats urinary tract infections, respiratory tract infections, skin infections, gastrointestinal infections, and anthrax*. 7. Erythromycin Meaning/Class: A macrolide antibiotic. Function: Similar to azithromycin, it inhibits bacterial protein synthesis. Helps with: Used for respiratory tract infections, skin infections, syphilis, Legionnaires' disease*, and as an alternative for penicillin-allergic patients. 8. Levofloxacin Meaning/Class: A fluoroquinolone antibiotic. Function: It inhibits bacterial DNA gyrase and topoisomerase IV, preventing bacterial DNA replication. Helps with: Treats pneumonia, urinary tract infections, skin and soft tissue infections, sinusitis, and prostatitis*. 9. Gentamicin Meaning/Class: An aminoglycoside antibiotic. Function: It inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit. Helps with: Used for severe Gram-negative bacterial infections, sepsis, burn infections, and endocarditis*. 10. Cefuroxime Meaning/Class: A second-generation cephalosporin antibiotic. Function: It kills bacteria by interfering with the synthesis of their cell walls. Helps with: Treats respiratory tract infections, urinary tract infections, skin and soft tissue infections, Lyme disease, and gonorrhea*. Drop the next question! 📸