Question

cellular respiration and photosynthesis experiment

flask number | contents of flask
1 | 1 plant
2 | 2 goldfish
3 | 1 plant & 2 goldfish
4 | nothing

part b
which of these would help reduce the amount of carbon dioxide produced from your answer to part a?
a add a plant to the flask
b add a goldfish to the flask
c remove a plant from the flask
d do nothing as the carbon dioxide will naturally become diluted

Explanation:

To reduce carbon dioxide (CO₂), we can use plants, as they perform photosynthesis which takes in CO₂ and releases oxygen. Goldfish perform respiration, releasing CO₂, so adding a goldfish (option B) would increase CO₂. Removing a plant (option C) would reduce photosynthesis, leading to more CO₂. Doing nothing (option D) won't actively reduce CO₂. Adding a plant (option A) will increase photosynthetic activity, thus consuming more CO₂ and reducing its amount.

Answer:

A. Add a plant to the flask