Question

Dichlorophenolindophenol ( ) is a chemical dye. When is chemically reduced, it changes color from blue to clear. Can be used as an electron acceptor in experiments that measure the rate of electron transport through the electron transport chain. A student performed an experiment to study the effects of a chemical, , on photosynthesis.

a) Bromothymol blue
b) Phenolphthalein
c) Methylene blue
d) Litμs

Answer 1

Phenolphthalein is a chemical dye that changes color in different acid environments and can be used as an electron acceptor in experiments to measure the rate of electron transport.

Step-by-step explanation:

Phenolphthalein is a chemical dye that can be used as an electron acceptor in experiments that measure the rate of electron transport through the electron transport chain. It changes color from colorless to red in a low acid environment, and stays colorless in a high acid environment. By adding or removing hydrogen ions from a solution, we can vary the color of phenolphthalein.