Bio 181 ASU Exam 1 Questions and Answers 100% Verified

Bio 181 ASU Exam 1 Questions and Answers 100% Verified Primitive prokaryote cell evolved into_________ - answerpro-eukaryotic cell Eukaryote - answersingle celled organism Paramecium - answerdistant ancestor of our cells, limited by # of biomolecular machines within itself What does a paramecium use cilia for? - answerto move What was the precursor to our kidneys? - answercontractile vacuole SEM(Scanning Electron Microscopy) - answercannot view living cells What can parameciums o as a defense technique against predators? - answerthey can shed their cilia Cells "walk" with ______ and ________ - answerlamelipodium an fillapodium How do you distinguish the front and the back of the cell? - answerthe front has lamelipodium and filapodium, the back has retraction fibers Focus - answerclump of cancer cells Phase Contrast Microscopy - answercan watch living cells move, light microscopy Retraction Fiber - answerthe first lamelipodia, stretches until it breaks and then releases cytoplasm and is reabsorbed into the cell How can a cell stretch their parts so extensively? - answerelasticity and the plasma membrane Normal cells are anchorage-_______________ - answerdependent Cancer cells are anchorage-________________ - answerindependent Anchorage-dependent - answeruses contact inhibition to stop growth Anchorage-indepedent - answerwill keep growing forever given fresh nutrients and space