Cell Transport PDF

Cell transport 1-Which of the following solutes would move the​fastest? urea glucose albumin sodium chloride 2-For solutes that move by simple​diffusion, which of the following does NOT affect the rate of simple diffusion across a​membrane? Check all that apply. the concentration of the solute the m...

Cell transport 1-Which of the following solutes would move the​fastest? urea glucose albumin sodium chloride 2-For solutes that move by simple​diffusion, which of the following does NOT affect the rate of simple diffusion across a​membrane? Check all that apply. the concentration of the solute the membrane pore size Your answer is correct. the potential energy of the solute Your answer is correct. the size of the solute 3-In this​activity, the solutes were transported through the dialysis membrane by​_______. active transport facilitated diffusion osmosis simple diffusion 4-Through which​membrane(s) would sodium chloride​diffuse? 100 MWCO and 200 MWCO 20​MWCO, 50​MWCO, 100​MWCO, and 200 MWCO 200 MWCO only 50​MWCO, 100​MWCO, and 200 MWCO 5-Which of the following is NOT a passive​process? vesicular transport Your answer is correct. osmosis filtration facilitated diffusion 6-When the solutes are evenly distributed throughout a​solution, we say the solution has reached​ _______. velocity permeability diffusion equilibrium 7-Which of the following does NOT describe the plasma​membrane? differentially permeable selectively permeable impermeable Your answer is correct. semipermeable 8-Which of the following requires a​membrane-bound carrier for​transport? facilitated diffusion Your answer is correct. osmosis filtration simple diffusion 9-Simple diffusion and facilitated diffusion both​_______. utilize a​membrane-embedded carrier protein move solutes with their concentration gradient require ATP move solutes against their concentration gradient 10-Which of the following would decrease the rate of facilitated​diffusion? increasing the amount of ATP available increasing the number of carrier proteins decreasing the number of carrier proteins decreasing the amount of ATP available 11-What happens to facilitated diffusion when the protein carriers become​saturated? ATP will be utilized for transport The maximum rate of transport will occur. Your answer is correct. The protein carriers fall apart. The transport rate will increase 12-What happened when sodium chloride was added as a solute in the left​beaker? The transport rate of glucose decreased. The transport rate of glucose increased. There was no change in the transport rate of glucose. Sodium was cotransported with the glucose. 13-Which of the following statements about carrier proteins is​FALSE? They are found integrated into the plasma membrane. They can become saturated if the maximum transport rate is exceeded. They might have to change shape slightly to accommodate a solute. They assist in simple diffusion. 14-Which of the following statements about facilitated diffusion is​FALSE? The movement requires a carrier protein. The movement of the solute is with its concentration gradient. The movement of the solute is passive. The movement of a given solute usually occurs in both directions​(into and out of the​cell). 15-Which of the following is NOT a reason why a solute would require facilitated​diffusion? The solute is too large to pass on its own. The solute is hydrophilic. The solute is lipid insoluble. The solute directly requires ATP for its transport. 16-Which of the following would increase the rate of facilitated​diffusion? increasing the steepness of the concentration gradient decreasing the number of carrier proteins decreasing the concentration of solutes increasing the amount of ATP available 17-Which of the following generated osmotic​pressure? glucose sodium chloride sodium​chloride, glucose and albumin generated osmotic pressure. albumin 18-Which of the following would result in NO change in osmotic pressure across a​membrane? The concentration of solutes is the same on both sides of the membrane. The solutes can diffuse through the pores. Water is moving with its concentration gradient. The solutes can diffuse through the pores and the concentration of solutes is the same on both sides of the membrane. 19-With the experimental conditions set at 10 mM glucose and 9 mM​albumin, and the 200 MWCO membrane in​place, which of the following is​true? The net movement of water is away from the albumin. The net movement of water is toward the albumin. Albumin and glucose diffuse through the membrane. The net movement of water is toward the glucose. 20-A cell is immersed in a beaker of solution. The cell membrane is permeable to water but impermeable to solutes. If the intracellular concentration is 10 mM and the solution is 20​mM, which of the following is​ true? The solution is hypotonic. The net movement of water is into the cell. There is no net change in the movement of water into the cell. The cell will shrink. 21-Which of the following statements about osmosis is​FALSE? It is a type of diffusion. Water moves toward the solution with the lowest concentration of solutes. It is specific for the movement of water. It is passive. 22-A Hypertonic​solution:_______. will induce cell swelling will induce cell bursting will induce no net movement of water will induce cell shrinkage 23-If a membrane is impermeable to​solutes, which of the following is​true? Osmosis will not occur. Water and solutes will move until equilibrium is reached. Water will move toward the more concentrated solutes. Water will move away from the concentrated solutes. 24-Osmotic pressure is measured in units of​_______. ​mM/min ​mM/sec mm Hg ​ml/min 25-Which of the following resulted in an increase in the filtration​rate? increasing the concentration of the solutes Both increasing the pressure above the beaker and increasing the concentration of solutes are correct. increasing the pore size increasing the pressure above the beaker Both increasing the pore size and increasing the pressure above the beaker are correct. 26-Which solute did NOT appear in the filtrate using the 200 MWCO​membrane? ​Glucose, charcoal, sodium chloride and urea appeared in the filtrate. charcoal sodium chloride glucose urea 27-Which of the following was NOT observed during this​activity? Increasing the rate of filtration increased the concentration of solutes in the filtrate. The 200 MWCO membrane was the largest pore size used. A residue of solutes remained on the membrane after filtration. Some solutes were too large to pass through the membrane. 28-Increasing the pressure above the beaker is analogous to​_______. an increase in heart rate a decrease in blood volume an increase in blood pressure an increase in solutes found in the blood 29-Which of the following is required for​filtration? ATP osmotic pressure a​membrane-embedded protein carrier Both a membrane and a hydrostatic pressure gradient are required. a hydrostatic pressure gradient 30-The presence or absence of a solute in the filtrate depends on​_______. The molecular weight and size of the solute as well as the MWCO and pore size of the membrane. the molecular weight of the solute the MWCO of the membrane the size of the solute the pore size of the membrane 31-An example of filtration occurs in the kidney​and: This filtration across the capillary is an active process. Ions and glucose filter from the capillary into the kidney tubule. Red blood cells filter from the capillary into the kidney tubule. Plasma proteins filter from the capillary into the kidney tubule. White blood cells filter from the kidney tubule into the capillary. 32-The​sodium-potassium pump can transport​_______. sodium even if potassium is not available and potassium even if sodium is not available potassium even if sodium is not available sodium even if potassium is not available only if sodium and potassium are available 33-Which of the following increased the rate of​sodium-potassium transport? increasing the number of membrane pumps adding glucose to the right beaker decreasing the amount of ATP increasing the amount of ATP 34-Which of the following describes the movement of ions by the​sodium-potassium pump? Potassium is moved into the cell. Potassium is moved out of the cell. Potassium is moved out of the cell and sodium is moved into the cell. Sodium is moved into the cell 35-What is the type of transport supplied by the glucose carriers in the​activity? facilitated diffusion coupled transport endocytosis exocytosis active transport 36-Which of the following can be true of both active transport and facilitated​diffusion? A solute pump is required. Cellular energy is required for the transport. Solutes can move against their concentration gradient. ​Lipid-insoluble solutes are transported across the membrane by a carrier protein. The cell membrane pinches off to transport materials. 37-Coupled transporters that move solutes in the same direction are called​_______. isoporters antiporters symporters uniporters 38-Which of the following describes the concentration of ions when the cell is at​rest? The concentration of potassium and sodium is equal inside and outside the cell. The concentration of potassium is higher inside the cell. The concentration of potassium is higher outside the cell. The concentration of sodium is higher inside the cell. 39-Which of the following is the driving force for the​sodium-potassium pump? an electrical gradient a hydrostatic pressure gradient a concentration gradient ATP hydrolysis