THSB
Matter and Energy in Living Systems
Plants make their own food in the form of sugar molecules from carbon dioxide molecules and water molecules. In…
Item ME060001: When plants make glucose, carbon dioxide and water are the starting substances and glucose and oxygen are the ending substances.
A word equation can be used to represent chemical reactions. The substances on the left side of the arrows are the starting substances, and the substances on the right side are the ending substances. The arrow represents “react to form.”
Which of the following word equations describes the reaction that plants use to make glucose (photosynthesis)?
- Minerals + Water → Glucose + Oxygen
- Oxygen + Water → Glucose + Carbon Dioxide
- Carbon Dioxide + Oxygen → Glucose + Water
- Carbon Dioxide + Water → Glucose + Oxygen
Pre-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 371 |
6–8 n = 371 |
9–12 n = 0 |
Male n = 204 |
Female n = 167 |
English n = 343 |
Other n = 28 |
|
| A. | 14% | 14% | NAN% | 15% | 13% | 15% | 11% |
| B. | 22% | 22% | NAN% | 21% | 23% | 22% | 14% |
| C. | 17% | 17% | NAN% | 16% | 19% | 15% | 46% |
| D. | 47% | 47% | NAN% | 48% | 46% | 48% | 29% |
Post-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 371 |
6–8 n = 371 |
9–12 n = 0 |
Male n = 205 |
Female n = 166 |
English n = 343 |
Other n = 28 |
|
| A. | 15% | 15% | NAN% | 14% | 17% | 16% | 7% |
| B. | 14% | 14% | NAN% | 11% | 17% | 13% | 21% |
| C. | 15% | 15% | NAN% | 13% | 16% | 13% | 32% |
| D. | 56% | 56% | NAN% | 62% | 49% | 58% | 39% |