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生命科學與醫學
大學

求這2題解答~ 感謝!

is the difference between ribozymes that are considered “true”catalysts gthat are not? true”catalysts are found only in prokaryotes On-true”catalysts do not employ any of the accepted mechanisms of rate enhancement C. “Non-true”catalysts do not recognize aspecific site on the substrate D. “True”catalysts are the same atthe end ofthe reaction as at the beginning E. “True”catalysts require a protein component 67. Which one ofthe following statements is true? In chromatin folding, the structure called a solenoid: A. is the most compact form of DNA. B. requires the presence of histone H1. C. isagood template fortranscription. D. consists of eight histone molecules around which DNA is wrapped. E. is the most extended form of DNA.
生命科學與醫學
大學

負回饋和正回饋分別是什麼??差別在哪裡??最後一點想要表示的意思是什麼(positive feedback loops occur...)??

_ “人 當還厂歷芭人還U4本上一己人>名>4 Kwan ee, 計S mamnmtained by negative feedback, which helps tfo retfurn a variable to either anormal rangqe or asSet pojnt Most homeostatic control systems function by negative feedback, where buildup of the end product shuts the system off >osftive feedback loops occur in animals, but jo not usually contribute to homeostasis
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