AP1 Lab HW 1 Activity 1

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When the solutes are evenly distributed throughout a solution, we say the solution has reached _______.


Which of the following is NOT a passive process?

vesicular transport

Which of the following does NOT describe the plasma membrane?


Which of the following requires a membrane-bound carrier for transport?

facilitated diffusion

Which of the following solutes would move the fastest?

sodium chloride

For solutes that are membrane permeable, which of the following does NOT affect the rate of diffusion?

the potential energy of the solute and the size of the pore

In this activity, the solutes were transported through the dialysis membrane by _______.

simple diffusion

Through which membrane(s) would sodium chloride diffuse?

50 MWCO, 100 MWCO, and 200 MWCO

Which of the following statements about carrier proteins is FALSE?

They assist in simple diffusion.

Which of the following statements about facilitated diffusion is FALSE?

The movement of a given solute usually occurs in both directions (into and out of the cell).

Which of the following is NOT a reason why a solute would require facilitated diffusion?

The solute directly requires ATP for its transport.

Which of the following would increase the rate of facilitated diffusion?

increasing the steepness of the concentration gradient

Simple diffusion and facilitated diffusion both _______.

move solutes with their concentration gradient

Which of the following would decrease the rate of facilitated diffusion?

decreasing the number of carrier proteins

What happens to facilitated diffusion when the protein carriers become saturated?

The maximum rate of transport will occur

What happened when sodium chloride was added as a solute in the left beaker?

There was no change in the transport rate of glucose.

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