Describe the experiment shown in the given diagram and, what does this prove? Colour changing flowers
Answers
Answer:
THE SCIENCE OF COLOR CHANGING FLOWERS
Water travels up tiny tubes in the plant by a process called Capillary Action. Putting a colored dye in the water in the vase allows us to observe capillary action at work.
Explanation:
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Answer
a. Potassium hydroxide is kept in the test tubes X and Y because it reacts chemically with the carbon dioxide and absorbs it to form a precipitate.
b. The coloured water rises in tube 1 due to the development of a partial vacuum inside it. This happens because the carbon-dioxide released by the germinating seeds will be soaked by potassium hydroxide present in the flask containing those seeds. This soaking of CO
2
will develop partial vacuum which sucks the water up and hence the water level rises.
c. The boiled peas soaked in a disinfectant in test tube Y are used as a control. In this test tube, the process of respiration will not take place as the peas are boiled while in test tube X, the process of respiration will take place.
d. The biological process which causes the above rise is cellular respiration.
e. Cellular respiration is the process by which energy is released from the breakdown of organic substances (glucose). This process occurs inside the mitochondria. It is exactly opposite to the process of photosynthesis.