PLANT PHYSIOLOGY
RESPIRATION IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When a plant is in the sunlight
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When a plant is in the dark
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When cellular respiration is happening
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When oxygen is removed from the air
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Detailed explanation-1: -Bromothymol blue (BMB) is an indicator dye that turns yellow in the presence of acid. When carbon dioxide is added to the solution, it creates carbonic acid, lowering the pH of the solution. BMB is blue when the pH is greater than 7.6, green when the pH is between 6-7.6, and yellow when the pH is less than 6.
Detailed explanation-2: -Conclude that bromothymol blue turns yellow in the presence of carbon dioxide and turns back to blue in the presence of oxygen.
Detailed explanation-3: -Bromothymol blue (BTB) is a chemical that turns yellow in the presence of carbon dioxide. In the presence of oxygen, BTB stays blue.
Detailed explanation-4: -Bromothymol blue is a pH indicator. During photosynthesis, the aquatic plant used carbon dioxide, raising the pH of the solution. Due to change in pH, the colour of bromothymol changes from yellow to blue.
Detailed explanation-5: -Bromthymol Blue is a dye used as an indicator in determining pH. Bromthymol blue is a weak acid. It can be in acid or base form, depending on the pH of the solution. This reagent is yellow in acidic solutions, blue in basic solutions and green in neutral solution.