What do you expect will happen to the color of the water when we expose Cabomba to the light or when we place the Cabomba in the dark

Hello your question is incomplete attached below is the complete question

Bromophenol will change its color from its' blue to yellow when in both dark and light conditions. and This is because cellular respiration occurs during both dark and light periods

Explanation:

What is expected to happen to the color of the water when we expose Cabomba to the light or when we place the Cabomba in the dark is that  

Hypothesis:

Bromophenol will change its color from its blue to yellow when in both dark and light conditions. and This is because cellular respiration occurs during both dark and light periods

abruptly