Cell Transport Case Studies- cut the problems out and glue them into your notebook.
Problem # 1
A Euglena is a freshwater unicellular organism. The solute
concentration inside the Euglena is always greater than the solute
concentration in the surrounding water.
A. Using crayons, draw a diagram of the Euglena and its surroundings
using one color for the Euglena and another for its surroundings.
(Include a key for the colors)
B. Label the inside of the Euglena as hypotonic, hypertonic, or isotonic.
C. Label the environment as hypotonic, hypertonic, or isotonic.
D. Using an arrow, indicate the direction water will flow, either inside
the Euglena or outside the Euglena.
E. Will the size of the Euglena increase, decrease, or stay the same?
Problem # 2
Red blood cells are approximately 0.25% salt. Red blood cells
are placed in a 2% salt solution.
A. Using crayons, draw a diagram of the red blood cell and its
surroundings using one color for the red blood cell and another for its
surroundings. (Include a key for the colors)
B. Label the inside of the red blood cell as hypotonic, hypertonic, or
isotonic.
C. Label the environment of the red blood cell as hypotonic, hypertonic,
or isotonic.
D. Using an arrow, indicate the direction water will flow, either inside
the red blood cell or outside the red blood cell.
E. Will the size of the red blood cell increase, decrease, or stay the
same?
Problem # 3
Red blood cells are approximately 0.25% salt. Red blood cells
are placed in distilled water.
A. Using crayons, draw a diagram of the red blood cell and its
surroundings using one color for the red blood cell and another for its
surroundings. (Include a key for the colors)
B. Label the inside of the red blood cell as hypotonic, hypertonic, or
isotonic.
C. Label the environment of the red blood cell as hypotonic, hypertonic,
or isotonic.
D. Using an arrow, indicate the direction water will flow, either inside
the red blood cell or outside the red blood cell.
E. Will the size of the celery cell increase, decrease, or stay the same?
Problem # 4
A stalk of celery is placed in a container of salt water.
A. Using crayons, draw a diagram of a celery cell and its surroundings
using one color for the cell and another for its surroundings.
(Include a key for the colors)
B. Label the inside of the celery cell as hypotonic, hypertonic, or
isotonic.
C. Label the environment of the celery cell as hypotonic, hypertonic, or
isotonic.
D. Using an arrow, indicate the direction water will flow, either inside
the celery cell or outside the celery cell.
E. Will the size of the celery cell increase, decrease, or stay the same?