BIO 181 Module 2 Self-Check questions well answered

BIO 181 Module 2 Self-CheckLoss of the cell wall was required for the endomembrane theory - correct answer True; the cell wall causes a buildup of osmotic pressure that can burst Eukaryotic cells Fluorescence microscopy is a form of light microscopy? - correct answer True The end of the retraction fiber touching the cell culture plate still contains the cell equivalent of super-glue? - correct answer True TEM (transmission electron microscopy) provides a thin, two dimensional section of the object being studied? - correct answer True What limits how big a cell can be? - correct answer The surface area to volume ratio DNA in extant prokaryotic cells is circular? - correct answer True; eukaryotic cells have linear DNA The ancient earth did not contain much oxygen? - correct answer True The cytoskeleton ave rise to the nuclear envelope? - correct answer False The presumed first step in the transition of the primitive, proto-prokaryotic cell in the primitive, proto-eukaryotic cell was the loss of the cell wall? - correct answer True The association of ribosomes with _________________ invaginations would support the _____________________ - correct answer membrane; endomembrane Motility improved the fitness of these early cells because: - correct answer It allowed them to escape predators and move towards food