Asu Bio 181 Exam 1. Questions And Answers, 100% Accurate. Graded A+

Two types of second messengers discussed in lecture can exist downstream of a plasma membrane receptor. These are ____________ and ____________. {Ans: GTP BINDING PROTEINS & ADENYLYL CYCLASE}Write a few sentences that explain what limits an individual cell from becoming more complex. {Ans: Limited number in biomolecular machines}The plasma membrane gets new lipids from: A.The lumen of the ER. B. The lumen of the Golgi apparatus. C. Making new lipids at the plasma membrane. D. The nucleus. E. None of the above. {Ans: E. None of the above}For a cell to respond to a ligand released from a cell and uses the circulatory system to get to the responding cell it is called ____________ communication. {Ans: ENDOCRINE}The activation of both MPF and MAPK result in _________ _________ (two words) of the cytoplasm during M-phase. {Ans: SETTLING DOWN}It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells. {Ans: TRUE}What are the two functions of a membrane? {Ans: - Regulating which molecules go in and out of the cell - Separating incompatible processes occurring within organelles}The other point where MAPK can become active is