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QR Challenge: AP Biology Osmosis and diffusion

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. What is kinetic energy, and how does it differ from potential energy?1
2. What environmental factors affect kinetic energy and diffusion?22
3. How do these factors alter diffusion rates?33
4. Why are gradients important in diffusion and osmosis?44
5. What is the explanation for the fact that most cells are small and have cell membranes with many convolutions?55
6. Will water move into or out of a plant cell if the cell has a higher water potential than the surrounding environment? 66
7. What would happen if you applied saltwater to a plant?77
8. How does a plant cell control its internal (turgor) pressure?88
9.
10. Why is it important for an IV solution to have salts in it?99
11. What would happen if you were given pure water in an IV?1010
12. How would you determine the best concentration of solutes to give a patient in need of fluids before you introduced the fluids into the patient’s body?1111
13.
14. Which pair(s) in the dialysis lab that you tested did not have a change in weight? How can you explain this?1212
15. If you compared 1 M solutions, was a 1 M NaCl solution more or less hypertonic than a 1 M sucrose solution? What is your evidence? What about 1 M NaCl and 1 M glucose?1313
16. How could you test for the diffusion of glucose?1414
17. Based on what you learned from your experiment, how could you determine the solute concentration inside a living cell?1515

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_kinetic_energy,_and_how_does_it_differ_from_potential_energy?

Question 1 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_environmental_factors_affect_kinetic_energy_and_diffusion?2

Question 2 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=How_do_these_factors_alter_diffusion_rates?3

Question 3 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=Why_are_gradients_important_in_diffusion_and_osmosis?4

Question 4 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_explanation_for_the_fact_that_most_cells_are_small_and_have_cell_membranes_with_many_convolutions?5

Question 5 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=Will_water_move_into_or_out_of_a_plant_cell_if_the_cell_has_a_higher_water_potential_than_the_surrounding_environment?_6

Question 6 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_would_happen_if_you_applied_saltwater_to_a_plant?7

Question 7 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=How_does_a_plant_cell_control_its_internal_(turgor)_pressure?8

Question 8 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=

Question 9 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=Why_is_it_important_for_an_IV_solution_to_have_salts_in_it?9

Question 10 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_would_happen_if_you_were_given_pure_water_in_an_IV?10

Question 11 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=How_would_you_determine_the_best_concentration_of_solutes_to_give_a_patient_in_need_of_fluids_before_you_introduced_the_fluids_into_the_patient’s_body?11

Question 12 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=

Question 13 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which_pair(s)_in_the_dialysis_lab_that_you_tested_did_not_have_a_change_in_weight?_How_can_you_explain_this?12

Question 14 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=If_you_compared_1_M_solutions,_was_a_1_M_NaCl_solution_more_or_less_hypertonic_than_a_1_M_sucrose_solution?_What_is_your_evidence?_What_about_1_M_NaCl_and_1_M_glucose?13

Question 15 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=How_could_you_test_for_the_diffusion_of_glucose?14

Question 16 (of 17)

 


AP Biology Osmosis and diffusion: QR Challenge

https://www.classtools.net/QR/decode.php?text=Based_on_what_you_learned_from_your_experiment,_how_could_you_determine_the_solute_concentration_inside_a_living_cell?15

Question 17 (of 17)