Question

All organisms are dependent on a healthy carbon dioxide-oxygen balance. Photosynthesis and cellular respiration are key processes in maintaining this balance. Your class is conducting a lab experiment to investigate the relationship between photosynthesis and cellular respiration by observing how carbon dioxide cycles through a biological system. To conduct the experiment, each group set up four test tubes containing 30 ml distilled water and 3 ml of bromothymol blue. Bromothymol blue is a pH indicator that changes from blue (alkaline) to yellow (acid). When carbon dioxide dissolves in water, it produces carbonic acid, turning the indicator from blue to yellow. The level of CO was inferred from a change in the indicator color.

Answer 1

The carbon cycle involves the exchange of carbon dioxide and oxygen through photosynthesis and cellular respiration, helping to maintain a balance in the environment.

Step-by-step explanation:

All organisms are connected through a process called the carbon cycle. This cycle involves the exchange of carbon dioxide and oxygen between photosynthesis and cellular respiration. During photosynthesis, plants take in carbon dioxide and produce oxygen, while during cellular respiration, organisms consume oxygen and produce carbon dioxide. This exchange helps maintain a healthy carbon dioxide-oxygen balance in the environment.