Grade 10 Cells & microscopy worksheet

What is on the worksheet

1. Supplied plant-tissue data show initial mass 5 g and final mass 4.9 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

2. Supplied plant-tissue data show initial mass 2.1 g and final mass 3 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

3. Supplied plant-tissue data show initial mass 6.8 g and final mass 6.5 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

4. Supplied plant-tissue data show initial mass 5.9 g and final mass 5.5 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

5. A printed image is 67 mm long at 400× magnification. Find the actual length in micrometers. Round to 3 decimal places if needed. Answer in µm.

6. A printed image is 63 mm long at 50× magnification. Find the actual length in micrometers. Round to 3 decimal places if needed. Answer in µm.

7. At diffusion equilibrium, do molecules stop moving?

   1. Only solute particles disappear.
   2. Yes, every particle stops.
   3. No.

8. A printed image is 8 mm long at 200× magnification. Find the actual length in micrometers. Round to 3 decimal places if needed. Answer in µm.

9. Supplied plant-tissue data show initial mass 2.1 g and final mass 2.9 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

10. Supplied plant-tissue data show initial mass 6.9 g and final mass 8.9 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

11. Supplied plant-tissue data show initial mass 15 g and final mass 17.2 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

12. Supplied plant-tissue data show initial mass 9.5 g and final mass 9.3 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

13. Supplied plant-tissue data show initial mass 12.9 g and final mass 12.8 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

14. Supplied plant-tissue data show initial mass 14.7 g and final mass 16.9 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

15. Supplied plant-tissue data show initial mass 10.7 g and final mass 13.7 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

16. Supplied plant-tissue data show initial mass 12.5 g and final mass 13.6 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

17. One side of a simplified model has 30 solute units in 10 volume units. Find its concentration.

18. Supplied plant-tissue data show initial mass 4.8 g and final mass 5.3 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.

19. A printed image is 44 mm long at 500× magnification. Find the actual length in micrometers. Round to 3 decimal places if needed. Answer in µm.

20. Supplied plant-tissue data show initial mass 6 g and final mass 6.3 g. Find signed percentage mass change. No experiment is required. Round to 3 decimal places if needed. Answer in %.