Question
During preparation, baking soda (NaHCO3) is added to the water to create a solution. Which of the options below is the best reason why baking soda was added?
(1 point)
• To keep the elodea plant from decaying
• To keep the water from changing into another color
O To add carbon dioxide to the solution that the plant needs as a reactant of
photosynthesis
• To add oxygen to the solution that the plant needs as a reactant of photosynthesis
During the first portion of the experiment, the lights were turned off and a timer was set for 5 minutes. No bubbles were released during this 5 minutes. Which of the answer choices below is the best reason why. (1 point)
• There was no oxygen present for photosynthesis to occur
• There was no carbon dioxide present for photosynthesis to occur
• There was no light present for photosynthesis to occur
During the second part of the experiment you can see bubbles begin to appear when they didn't before. Which of the answer choices below is the best reason why?
(1 point)
• Light was applied to the scenario so photosynthesis could occur
• Oxygen was present in the water when it wasn't before
• Carbon dioxide was present in the water when it wasn't before
(1 point)
• To keep the elodea plant from decaying
• To keep the water from changing into another color
O To add carbon dioxide to the solution that the plant needs as a reactant of
photosynthesis
• To add oxygen to the solution that the plant needs as a reactant of photosynthesis
During the first portion of the experiment, the lights were turned off and a timer was set for 5 minutes. No bubbles were released during this 5 minutes. Which of the answer choices below is the best reason why. (1 point)
• There was no oxygen present for photosynthesis to occur
• There was no carbon dioxide present for photosynthesis to occur
• There was no light present for photosynthesis to occur
During the second part of the experiment you can see bubbles begin to appear when they didn't before. Which of the answer choices below is the best reason why?
(1 point)
• Light was applied to the scenario so photosynthesis could occur
• Oxygen was present in the water when it wasn't before
• Carbon dioxide was present in the water when it wasn't before
Answers
Answered by
GPT-4o mini
Here are the best reasoning choices for each of your questions:
1. **Why was baking soda (NaHCO3) added?**
- **Correct answer:** To add carbon dioxide to the solution that the plant needs as a reactant of photosynthesis.
- **Reasoning:** Baking soda dissociates in water to release bicarbonate ions, which can be converted to carbon dioxide, an essential reactant in the photosynthesis process for plants.
2. **Why were no bubbles released during the first 5 minutes with the lights turned off?**
- **Correct answer:** There was no light present for photosynthesis to occur.
- **Reasoning:** Photosynthesis requires light energy to convert carbon dioxide and water into glucose and oxygen. Without light, the process cannot occur, leading to no bubble production from oxygen release.
3. **Why did bubbles begin to appear when they didn't before?**
- **Correct answer:** Light was applied to the scenario so photosynthesis could occur.
- **Reasoning:** Once light was introduced, the elodea plant was able to perform photosynthesis, producing oxygen as a byproduct, which results in the visible bubbles.
1. **Why was baking soda (NaHCO3) added?**
- **Correct answer:** To add carbon dioxide to the solution that the plant needs as a reactant of photosynthesis.
- **Reasoning:** Baking soda dissociates in water to release bicarbonate ions, which can be converted to carbon dioxide, an essential reactant in the photosynthesis process for plants.
2. **Why were no bubbles released during the first 5 minutes with the lights turned off?**
- **Correct answer:** There was no light present for photosynthesis to occur.
- **Reasoning:** Photosynthesis requires light energy to convert carbon dioxide and water into glucose and oxygen. Without light, the process cannot occur, leading to no bubble production from oxygen release.
3. **Why did bubbles begin to appear when they didn't before?**
- **Correct answer:** Light was applied to the scenario so photosynthesis could occur.
- **Reasoning:** Once light was introduced, the elodea plant was able to perform photosynthesis, producing oxygen as a byproduct, which results in the visible bubbles.