Bacterial cells and plants cells are less likely than animal cells to lyse in a hypotonic environment because: The cells have mechanisms which actively transport water outside the cell Bacteria and plant cells have plasma membranes less permeable to water than most animal cells cells increase their rates of photosynthesis in hypotonic environments Bacterial cells and plants cells are surrounded by cell walls which provide support to the cell membrane under high osmotic pressure An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane is immersed a beaker containing a different solution. The membrane is permeable to water and the simple sugars, glucose and fructose. The membrane is impermeable to the disaccharide, sucrose. Which of these experimental treatments would increase the rate of glucose transport into the cell? Increasing extracellular glucose concentration Decreasing extracellular pH Increasing cytoplasmic pH Adding an inhibitor that blocks the regeneration of ATP Which of these experimental treatments would result in the most turgid cell? Increasing the temperature of the system Increasing the intracellular sucrose concentration Decreasing the extracellular simple sugar concentration Decreasing cytoplasmic pH Facilitated diffusion and active transport both rely on proteins embedded in the phospholipid bilayer of the cell. Which of the following statements provides the best explanation of the differences between active transport and facilitated diffusion?
Bacterial cells and plants cells are less likely than animal cells to lyse in a hypotonic environment because: The cells have mechanisms which actively transport water outside the cell Bacteria and plant cells have plasma membranes less permeable to water than most animal cells cells increase their rates of photosynthesis in hypotonic environments Bacterial cells and plants cells are surrounded by cell walls which provide support to the cell membrane under high osmotic pressure An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane is immersed a beaker containing a different solution. The membrane is permeable to water and the simple sugars, glucose and fructose. The membrane is impermeable to the disaccharide, sucrose. Which of these experimental treatments would increase the rate of glucose transport into the cell? Increasing extracellular glucose concentration Decreasing extracellular pH Increasing cytoplasmic pH Adding an inhibitor that blocks the regeneration of ATP Which of these experimental treatments would result in the most turgid cell? Increasing the temperature of the system Increasing the intracellular sucrose concentration Decreasing the extracellular simple sugar concentration Decreasing cytoplasmic pH Facilitated diffusion and active transport both rely on proteins embedded in the phospholipid bilayer of the cell. Which of the following statements provides the best explanation of the differences between active transport and facilitated diffusion?
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