Passive Transport

Multiple Choice

What does hydrophilic mean?

• water-repelling
• water-neutral
• water-absorbing
• water-loving

Multiple Choice

What does hydrophobic mean?

• water-loving
• water-neutral
• water-friendly
• water-hating

Multiple Choice

What does homeostasis mean?

• Consistent environmental changes
• Variable internal states
• Stable internal conditions
• Unstable external factors

Multiple Choice

Which part of the phospholipid is attracted to water?

• The hydrophilic head of the phospholipid.
• The hydrophobic tail of the phospholipid.

Open Ended

Why is passive transport and diffusion important to the cell?

​Win for the day

We will compare how hypotonic, isotonic, and hypertonic solutions affect animal and plant cells.

I will be able to predict whether water will move into a cell, out of a cell, or both ways equally when placed in hypotonic, hypertonic, and isotonic solutions

Multiple Choice

Which of the following best describes passive transport?

• Movement of substances using energy from the cell

• Movement of substances without using energy from the cell

• Movement of substances against the concentration gradient

• Movement of substances only in one direction

Multiple Choice

Which of the following statements best describes diffusion?

• Low concentration to high concentration.
• Equal concentration throughout the area.
• Concentration remains constant over time.
• High concentration to low concentration.

​Win for the day

We will compare how hypotonic, isotonic, and hypertonic solutions affect animal and plant cells.

I will be able to predict whether water will move into a cell, out of a cell, or both ways equally when placed in hypotonic, hypertonic, and isotonic solutions

Multiple Choice

Which is true about a hypotonic solutions?

• Water moves into cells, causing swelling.
• Water moves out of cells, causing shrinkage.
• Cells remain unchanged in size and shape.
• Water moves freely without affecting cells.

Multiple Choice

Which is true about isotonic solutions?

• They maintain cell shape.
• They shrink the cells.
• They cause cells to burst.
• They alter cell metabolism.

Multiple Choice

What happens to animal and plant cells in a hypertonic solution?

• Animal cells expand; plant cells decay.
• Animal cells shrink; plant cells wilt.

• Animal cells remain unchanged; plant cells grow.

• Animal cells swell; plant cells burst.

​Win for the day

We will compare how hypotonic, isotonic, and hypertonic solutions affect animal and plant cells.

I will be able to predict whether water will move into a cell, out of a cell, or both ways equally when placed in hypotonic, hypertonic, and isotonic solutions

Multiple Choice

Which statement about facilitated diffusion is correct?

• It requires energy to move molecules across the membrane

• It uses transport proteins to move molecules from high to low concentration

• It moves water only

• It moves molecules against their concentration gradient

Multiple Choice

Passive transport allows substances to move across cell membranes without using ___.

• energy
• ions
• proteins
• water

Open Ended

How would you explain passive transport to someone who has never heard of it before?