MIC 102 - MT 1 questions with correct answers

The plasma membrane is: A) A highly selective permeability barrier of the cell B) A primary support structure of the cell C) A source of nutrient production D) A structure that identifies a cell as eukaryotic or prokaryotic CORRECT ANSWER A) A highly selective permeability barrier of the cell Sterols are: A) Almost always present in eukaryotic membranes but absent in prokaryotic membranes B) Almost always absent in eukaryotic membranes but present in prokaryotic membranes C) Almost always present in both eukaryotic and prokaryotic membranes D) Almost always absent in both eukaryotic and prokaryotic membrane CORRECT ANSWER A) Almost always present in eukaryotic membranes but absent in prokaryotic membranes What is the biological function of endospores? A) They are bacterial reproductive structures B) They enable organisms to endure extremes of temperature, drying, and nutrient depletion C) They transport water across the plasma membrane D) All of the above CORRECT ANSWER