QR Challenge: AS Biology Revision Edexcel B

Created using the ClassTools QR Treasure Hunt Generator

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

• Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
• Bring these devices into the lesson.

3. Print out the QR codes.

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

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. what cell is formed by fusing a male and female gamete?	zygote
2. what is the detailed internal structure of a cell called?	ultrastructure
3. what term describes a plant cell that is full of water?	turgid
4. what is the process of water loss from plant leaves?	transpiration
5. Describe the function of vesicles	transport out/into cells
6. An unidentified cell is found to contain mitochondria. Is it prokaryotic or eukaryotic?	eukaryotic
7. How is magnification calculated?	image/actual size
8. Name a common stain used in preparing slides	iodine etc
9. Give three molecules, other than proteins and cholesterol, that are present in animal cell membranes.	phospholipids,glycolipids,glycoproteins
10. What is cell signalling?	coordination and communication
11. List three ways to increase the rate of diffusion	short distance, steep concentration gradient, higher temperature
12. Describe what happens to a plant cell if it is placed in a solution with a higher water potential than the cell	water moves in by osmosis and cell becomes turgid
13. During which stage in mitosis does the nuclear envelope break down?	prophase
14. Name the type of cell division that produces the gametes.	meiosis
15. Describe how a palisade cell is adapted for its role in photosynthesis?	tessellate, contain many chloroplasts, thin
16. How do the surface area to volume rations of large and small organisms differ?	larger has a smaller SA:Vol
17. Explain why the circulatory system of a fish is described as being closed
18. Which chamber of the heart receives blood from the lungs?
19. What prevents impulses from the atria travelling straight into the ventricles?
20. Name the structure that picks up impulses from the atria and passes them on to the ventricles
21. How many oxygen molecules can each haemoglobin molecule carry?
22. What effect does respiration have on a cells pO2?
23. Name the substance that thickens the walls of xylem vessels

 

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