Biology Chapter on Transport Processes

Which of the following is NOT a passive process?

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

Which of the following does NOT describe the plasma membrane?

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

Which of the following statements about carrier proteins is FALSE?

Which of the following statements about facilitated diffusion is FALSE?

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

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

Which of the following statements about osmosis is FALSE?

A hypertonic solution: _______.

If a membrane is impermeable to solutes, which of the following is true?

Osmotic pressure is measured in units of _______.

A __________ is a round or oval hole or opening.

Active vs Passive Processes

Vesicular transport is the only process listed that is not passive.

Solution Dynamics

When solutes are evenly dispersed in a solution, it is termed equilibrium.

Plasma Membrane Characteristics

The plasma membrane is selectively permeable, semipermeable, and differentially permeable, but it is not impermeable.

Carrier Proteins and Transport

Facilitated diffusion requires a membrane-bound carrier for transport.
Carrier proteins assist in the facilitated diffusion process, not simple diffusion.
Carrier proteins can become saturated and may undergo slight shape changes to accommodate solutes.

Misconceptions in Facilitated Diffusion

It is false that the movement of a given solute in facilitated diffusion occurs in both directions; it is typically unidirectional.

Factors Requiring Facilitated Diffusion

Solutes needing facilitated diffusion include those that are lipid insoluble, too large, or hydrophilic, but not those directly requiring ATP for transport.

Enhancing Facilitated Diffusion

The rate of facilitated diffusion can be increased by steepening the concentration gradient.

Understanding Osmosis

It is incorrect to say that water moves toward the solution with the lowest solute concentration; it actually moves toward the area with the highest solute concentration.

Hypertonic Solutions

A hypertonic solution will cause cell shrinkage due to water moving out of the cell.

Membrane Permeability and Osmosis

If a membrane is impermeable to solutes, water will move toward more concentrated solutes to attempt to create equilibrium.

Osmotic Pressure Measurement

Osmotic pressure is quantified in millimeters of mercury (mm Hg).

Anatomical Terms

A foramen refers to a round or oval hole or opening.

This quiz explores the differences between active and passive transport processes, focusing on vesicular transport and facilitated diffusion. Understand key concepts such as plasma membrane characteristics and the role of carrier proteins. Test your knowledge on common misconceptions related to solute movement in solutions.