26. Which of the following is true regarding a fundamental property of signallin

Question

26. Which of the following is true regarding a fundamental property of signalling molecules? A. They always lead to stimulation of cell responses B. They always lead to inhibition of cell responses C. Their effect is varied depending on the cell type D. They have no effect on cellular response 27. Cellular response to a stimulus is always a fast event A. True B. False 28. In order for actin filaments to form polymers, they require which of the following? A. GTP B. DTP C. NADH D. ATP 9. Unlike "dynamic instability", " treadmilling" results in; A. No net change in the length in the growing filament B. Increased length in the growing filament C. Shortened length of the growing filament D. None of the above 30. An investigator is studying the effect of a new drug on a protein that is normally ransported to the nucleus called "protein Q". In his first experiment, he designs a drug hat inhibits the nuclear import receptor. What would be the fate of protein Q? A. There would be excessive levels of protein Q in the Nucleus B. There would be excessive levels of protein Q in the cytoplasrm C. There would be excessive levels of protein Q in the ER D. There would be excessive levels of protein Q in the golgi 1. The above investigator then creates a drug that inhibits Ran from hydrolyzing GTP yould be the fate of protein Q? here would be excessive levels of protein Q in the Nucleus ere would be excessive levels of protein Q in the cytoplasm There would be excessive levels of protein Q in the ER D. There would be excessive levels of protein Q in the golgi

Explanation / Answer

Answer 26) They always lead to stimulation of cell responses.

Answer 27) True

Answer 28) GTP

Answer 29) Shortened length of the growing filament.

Answer 30) There would be the excessive level of protein Q in the nucleus

Answer 31) There would be excessive level of protein Q in ER.

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