Answer: Cyclosporin A suppresses immunity; statins lower cholesterol.
- A Cyclosporin A lowers cholesterol; statins suppress immunity
- B Cyclosporin A is an antibiotic; statins are immunosuppressants
- C Both lower blood cholesterol levels
- D Cyclosporin A suppresses immunity; statins lower cholesterol
Correct answer: D. Cyclosporin A suppresses immunity; statins lower cholesterol
Explanation: Cyclosporin A, from Trichoderma polysporum, is an immunosuppressant used in organ transplants, while statins, from Monascus purpureus, act as blood-cholesterol lowering agents.
Sewage passes through physical removal (primary), then aerobic biological treatment where microbes form flocs that consume organic matter (secondary); the settled activated sludge is then digested anaerobically to produce biogas - a deliberate switch from aerobic to anaerobic conditions between stages.
Concept context
Microorganisms in food, medicine, sewage treatment, biocontrol, and biofertilizers