Which of the following is NOT a known function of the cytoskeleton? to maintain

Question

Which of the following is NOT a known function of the cytoskeleton? to maintain a critical limit on cell Size to provide mechanical support to the cell to maintain characteristic shape of the cell to hold mitochondria and other organelles in place within the cytosol to assist in cell motility by interacting with specialized motor proteins Which of the following processes includes all others? osmosis diffusion of a solute across a membrane facilitated diffusion passive transport of an ion down its electrochemical gradient Glycoproteins and glycolipids are important for facilitated diffusion active transport cell-cell recognition signal-transduction pathways Which of the following is not true about osmosis? it increases free energy in a system water motes from a hypotonic to hypertonic solution solute molecules bind to water and decrease the water available to move it increases the entropy in a system there is no net osmosis between isotonic solutions the partition coefficient K. the equilibrium constant foe portioning between oil and water, for butyric acid is about 10^-2. and for 1, 4-butanediol it is about 10^-4 You add liposomes containing only water to a solution with an initial concentration of 1 mM butyric acid and 100 mM 1, 4 -butanediol outside the liposome. What is the relative rate of diffusion for the two substances into the liposome interior? Butyric acid diffuses into the liposome 100-fold faster than butanediol. the two diffuse into the liposome at equal rates Butanediol diffuses into liposome 100-fold faster than butyric acid There is not information provided to answer the question All of the following statements about membrane structure and function are true except: diffusion of gases is faster in air than across diffusion, osmosis, and facilitated diffusion do not require any energy input from the cell both sides of a membrane are identical in structure and function

Explanation / Answer

30)d (to hold mitochondrial and other cells within cristosol)

31)a

32)b

33)d

34)c

35)b

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