Which of the following is an unsafe lab practice?

1. Which of the following is an unsafe lab practice? Tie your hair back Rinse hands after an experiment Wear goggles Heat chemicals in a closed beaker

2. A teacher wants to test the effects citrus air freshener has on class performance. Which of the following would be the BEST test for her investigation? Measure the amount of air freshener Look at students previous grades Compare grades before and after the use of air freshener Look at students grades on new test

3. Greg is testing the effect fertilizer has on pumpkin growth. His experiment requires 20 pumpkins. 10 pumpkins were given the 10 mL of water and 10 mL of fertilizer. How can this experiment be strengthened? By increasing amount of sun By adding a control By measuring all the pumpkins By using different fertilizers

4. Greg is testing the effect fertilizer has on pumpkins. His experiment requires 20 pumpkins. 10 pumpkins were given the 10 mL of water and 10 mL of fertilizer. What should be done with the other 10 pumpkins? Add 10 mL of a different fertilizer Add 10 mL of water Don’t water them Give them 10 mL of sugar and water

5. Greg is testing the effect fertilizer has on pumpkin growth. His experiment requires 20 pumpkins. 10 pumpkins were given the 10 mL of water and 10 mL of fertilizer. What is the independent variable in this experiment? water Pumpkin growth fertilizer The amount of fertilizer

6. Greg is testing the effect fertilizer has on pumpkin growth. His experiment requires 20 pumpkins. 10 pumpkins were given the 10 mL of water and 10 mL of fertilizer. If Greg’s results are valid then what should other students be able to do? Perform the same experiment and get different results. Repeat the experiment with a different fertilizer. Repeat the same experiment with the same results. Perform the same experiment with squash.

7. Which of the following is quantitative data? 10 pumpkins grew larger Pumpkin 10 and 11 are orange Pumpkins are orange Pumpkins have seeds.

8. Which macromolecule is described below:Part of the cell membrane Carbohydrates Lipids Nucleic acids Proteins

9. Which macromolecule is described below:Built using amino acids Carbohydrates Lipids Nucleic acids Proteins

10. Which macromolecule is described below:Tested using the brown paper bag test Carbohydrates Lipids Nucleic acids Proteins

11. Which macromolecule is described below:supply energy Carbohydrates Lipids Nucleic acids Proteins

12. Which macromolecule is described below:breaks down glucose Carbohydrates Lipids Nucleic acids Enzymes

13. Which of the following is NOT a factor that causes enzymes to not work properly. temperature Concentration pH color

14. Which of the following are elements not found in macromolecules? Carbon Phosphorus Nitrogen Helium

15. Which of the following would happen if the active site changed shape? Protein/ enzyme The protein (enzyme) will work faster The protein (enzyme) will work slower or not at all. The nucleic acid will work faster The nucleic acid will work slower or not at all

16. The picture below shows a cell with membrane bound organelles and a nucleus. Which of the following describes this cell? Prokaryotic Eukaryotic Bacteria Viral

17. Which of the following organelles converts sugar into energy? Structure 3 Structure 6 Structure 7 Structure 5

18. Which of the following organelles digest old cell parts? Structure 3 Structure 1 Structure 7 Structure 5

19. Which of the following organelles makes proteins? Structure 3 Structure 1 Structure 7 Structure 5

20. Which of the following organelles contain the information that passes from parent to offspring? Structure 3 Structure 1 Structure 7 Structure 5