MEGA
Energy in Biology
The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus …
Item EB026001: The system of reactants of cellular respiration have more energy than the system of products because cellular respiration transfers energy to the surroundings.
Cellular respiration is a chemical reaction that occurs in plants and animals. How does the energy of the system of reactants of cellular respiration compare to the energy of the system of products?
- The reactants have more energy than the products because energy is always given off during chemical reactions.
- The reactants have more energy than the products because cellular respiration transfers energy to the surroundings.
- The reactants have less energy than the products because all chemical reactions take in energy from the surroundings.
- The reactants have less energy than the products because energy is created when food molecules are burned during cellular respiration.
Pre-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 113 |
6–8 n = 0 |
9–12 n = 105 |
Male n = 63 |
Female n = 38 |
English n = 99 |
Other n = 5 |
||
| A. | The reactants have more energy than the products because energy is always given off during chemical reactions. | 25% | NAN% | 22% | 24% | 21% | 22% | 0% |
| B. | The reactants have more energy than the products because cellular respiration transfers energy to the surroundings. | 21% | NAN% | 22% | 19% | 26% | 22% | 20% |
| C. | The reactants have less energy than the products because all chemical reactions take in energy from the surroundings. | 19% | NAN% | 20% | 21% | 18% | 19% | 40% |
| D. | The reactants have less energy than the products because energy is created when food molecules are burned during cellular respiration. | 35% | NAN% | 36% | 37% | 34% | 36% | 40% |
Post-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 140 |
6–8 n = 0 |
9–12 n = 131 |
Male n = 81 |
Female n = 43 |
English n = 119 |
Other n = 8 |
||
| A. | The reactants have more energy than the products because energy is always given off during chemical reactions. | 20% | NAN% | 20% | 23% | 16% | 21% | 0% |
| B. | The reactants have more energy than the products because cellular respiration transfers energy to the surroundings. | 36% | NAN% | 36% | 27% | 49% | 36% | 38% |
| C. | The reactants have less energy than the products because all chemical reactions take in energy from the surroundings. | 26% | NAN% | 27% | 31% | 16% | 26% | 38% |
| D. | The reactants have less energy than the products because energy is created when food molecules are burned during cellular respiration. | 19% | NAN% | 18% | 19% | 19% | 17% | 25% |