Cell Transport

Whereas​ (a)   involves taking particles into the cell, (b)   involves taking particles out of the cell.

• endocytosis
• exocytosis
• cytoplasm
• nucles
• nucleus

Which type of passive transport uses proteins to help molecules pass through the membrane?

• Diffusion
• Facilitated diffusion
• Osmosis
• All of the above

What is the passive movement of water?

• osmosis

• facilitated transport

• active transport

• endocytosis

Cell membranes are described as selectively permeable.

Four students were asked to explain what this means. Which one is correct?

• Student 1: Cell membranes prevent all materials from entering the cell.

• Student 2: Cell membranes only provide structural support for the cell.

• Student 3: Cell membranes regulate which substances can enter and exit the cell.

• Student 4: Cell membranes allow water and water-soluble substances to enter the cell.

Which cell is placed into a hypotonic environment? 

• A
• B
• C
• D

 An animal cell placed in a salty solution will

• Stay the same
• Shrink - get smaller

• Swell - get bigger

What is the difference between active and passive transport?

• Active does not need energy and passive uses ATP (energy)
• Active uses ATP (energy) and passive does not need energy
• Active stores transport proteins and passive releases 
• Active uses hormones and passive does not 

Moving from areas of LOW concentration to areas of HIGH concentration is called?

• Passive Transport
• Active Transport
• Diffusion
• Osmosis

How can you explain a cell swelling and bursting after being placed in a saline solution?

• The concentration of solute was greater in the solution than in the cell, so water moved out of the cell

• The concentration of solute was lower in the solution than in the cell, so solute moved out of the cell

• The concentration of solute was greater in the solution than in the cell, so solute moved into the cell

• The concentration of solute was lower in the solution than in the cell, so water moved into the cell

How could you verify whether soultion A is hypertonic or hypotonic to solution B (choose the BEST answer)?

• Mix the two solutions together

• Use a semipermeable membrane to separate the solutions, and observe which solution gains mass

• Use a semipermeable membrane to separate the solutions, and observe how solute moves across the membrane

• Heat the two solutions separately and determine which one boils faster