A | B |
Know what caffeine and ethanol did to the heart rate of Daphnia | Caffeine-sped up heart rate; Ethanol lowered heart rate |
Know what solutions were used to test for the 4 types of organic molecules | Benedict;s reagent: test for simple reducing sugars; Iodine: test for starch; Biuret reagent: test for protein; Vegetable oil: test for lipids |
Independent Variable | factors that the scientist varies during the experiment |
Know independent vs dependent variable | Independent variabe: factors that the scientist varies during the experiment; Dependent variable: a feature that the scientist measures in response to the independent variables |
Dependent Variable | feature that the scientist measures in response to the independent variables |
Caffein | speeds up heart rate |
Ethanol | lowers heart rate |
Benedict's reagent test | test for simple reducing sugars |
Iodine test | test for starch |
Biuret reagent test | test for protein |
Vegetable Oil test | test for lipids |
Know what the positive test looked like | Benedict's reagent=green, yellow, yellow-orange, orange, orange, red (low-high concentration); Iodine=dark purple/blue/black; Biuret reagent=Pinkish, Purple; Vegetable Oil=One layer |
Positive Test Benedict's reagent | green, yellow, yellow-orange, orange, orange, red (low-high concentration) |
Positive Iodine | Dark Purple/blue/black |
Positive Biuret reagent | Pinkish, purple |
Positive Vegetable Oil | one layer |
Know how to convert Celsius to Fahrenheit and vice versa | F=9/5C + 32; C=5/9 (F-32) |
F | 9/5C + 32 |
C | 5/9 (F-32) |
Know the compound scope magnification equation (eyepiece mag X objective mag) | 10X objective magnification |