Passive Transport

Multiple Choice

Which of the following statements best describes passive transport?

• It requires cell energy and moves substances from low to high concentration.

• It does not require cell energy and moves substances from high to low concentration.

• It requires cell energy and moves substances from high to low concentration.

• It does not require cell energy and moves substances from low to high concentration.

Multiple Choice

Which of the following best describes the process of diffusion as shown in the diagram?

• Movement of molecules from high to low concentration

• Movement of water through a membrane

• Movement of molecules from low to high concentration

• Movement of molecules only in plant cells

Multiple Choice

Which of the following conditions will cause water to move into a cell, potentially causing it to swell?

• Hypotonic

• Hypertonic

• Isotonic

• Plasmolysis

Multiple Select

Select all statements that are true about isotonic solutions based on the slides.

• The concentration of solutes is the same inside and outside the cell.

• Water moves equally in both directions across the membrane.

• The cell gains water and swells.

• There is no net change in cell size.

Multiple Choice

Identify the following as hypo, hyper, or iso: A cell with 10% salt is placed in a solution with 2% salt. What type of solution is this for the cell?

• Hypotonic

• Hypertonic

• Isotonic

• None of the above

Multiple Choice

What is the main difference between passive transport and active transport in cells?

• Passive transport requires energy, while active transport does not.

• Passive transport moves substances from low to high concentration, while active transport moves from high to low concentration.

• Passive transport does not require energy, while active transport requires energy (ATP).

• Passive transport only occurs in plants, while active transport only occurs in animals.