ANIMAL PHYSIOLOGY
GAS EXCHANGE IN DIFFERENT ANIMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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pink to blue
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blue to pink
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red to pink
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blue to white
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Detailed explanation-1: -The cobalt chloride paper changes its color to pink due to the presence of moisture that occurs as a result of transpiration.
Detailed explanation-2: -You can get an indicator paper – like litmus paper but containing cobalt chloride-which changes colour from blue to pink in the presence of water.
Detailed explanation-3: -When it absorbs water it turns Pink. To check the rate of transpiration on the upper and lower surfaces of the leaf, a blue-colored Cobalt chloride paper is fixed over the surfaces. The blue cobalt chloride paper at the lower surface of the leaf turns pink rapidly due to the water content released during transpiration.
Detailed explanation-4: -Cobalt chloride paper is pink when moist and blue when dry. The rate of loss of water is, however, more on the lower side than the upper side.
Detailed explanation-5: -Cobalt chloride, CoCl2, is a fascinating compound that changes color in response to humidity. As humidity increases, cobalt chloride changes color from sky blue to purple to pink.