microbiology chapter 10 test bank

Correct Answer: B

Rationale: The correct answer is B: ribosome. Ribosomes are responsible for protein synthesis, not packaging. The Golgi complex (A) processes and packages proteins. The rough endoplasmic reticulum (rER) (C) is involved in protein synthesis and transport. Lysosomes (D) contain enzymes for digestion, not protein packaging. Therefore, ribosomes are the organelle directly involved in protein synthesis, making it the correct choice.

Correct Answer: C

Rationale: Rationale: 1. Bacillus anthracis and Clostridium tetani are both spore-forming bacteria. 2. Spores allow them to survive harsh conditions like extreme heat or lack of nutrients. 3. Choice C is correct because both A and B (Bacillus anthracis and Clostridium tetani) produce spores. 4. Choice D is incorrect as both bacteria mentioned are known to produce spores, enabling them to survive in extreme conditions.

Correct Answer: A

Rationale: The correct answer is A: OSHA. The Occupational Safety and Health Administration (OSHA) is responsible for setting and enforcing safety standards in the workplace, including bloodborne pathogen training requirements. OSHA's Bloodborne Pathogens Standard mandates training for certain at-risk professions to prevent exposure to bloodborne diseases. The CDC (Choice B) focuses on disease prevention and control, not regulatory enforcement. NIA (Choice C) is the National Institute on Aging and not relevant to bloodborne training. WHO (Choice D) is the World Health Organization, which sets global health standards but does not regulate workplace safety in the same capacity as OSHA.

Correct Answer: A

Rationale: The correct answer is A: Nystatin. Nystatin is an antifungal medication specifically used to treat candida infections. It works by disrupting the cell membrane of the fungus, leading to its death. Penicillin (B) is an antibiotic effective against bacterial infections, not fungal. Streptomycin (C) is also an antibiotic used for bacterial infections. Isoniazid (D) is used to treat tuberculosis, not candida infections. Therefore, Nystatin is the best choice for treating candida infections due to its antifungal properties.

Correct Answer: B

Rationale: The correct answer is B: Diarrhea. Brucellosis typically presents with symptoms such as arthralgia, headache, and undulating fever, but diarrhea is not a common symptom associated with the disease. Brucellosis is primarily characterized by systemic symptoms like fever, joint pain, and headache due to the bacterial infection. Diarrhea is more commonly seen in gastrointestinal infections rather than brucellosis. Therefore, the absence of diarrhea as a symptom in brucellosis helps in differentiating it from other diseases with similar clinical presentations.