PLANT PHYSIOLOGY
PHOTOSYNTHESIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Take conical flask with boiled seeds inside and a lime water filled brake and put the rubber cork on flask and a glass tube and wait until it turns gelatinous white.
|
|
|
Take a conical flask with germinating seeds inside and a limewater filled beaker and put the rubber cork on flask and put a glass tube and wait until it turns milky white.
|
|
|
Take a conical flask with dry leaf inside and a water filled beaker and put a rubber cork on flask and put a glass tube and wait until it smells like rotten eggs.
|
|
|
None of the above
|
Detailed explanation-1: -The germinating seeds in the conical flask release CO2 during respiration, which is absorbed by the KOH solution kept in the small test tube. This creates a partial vacuum in the flask that forces the water up the delivery tube. Thus, it proves that germinating seeds produce carbon dioxide during respiration.
Detailed explanation-2: -The liberation of carbon dioxide during respiration can be shown by the experiment where the lime water present in a beaker will turn milky, after blowing air into it from the mouth using a straw, hence it will show that carbon dioxide was present in the expired air.
Detailed explanation-3: -Answer: The fermentation process can be evaluated or observed by allowing the co2 to enter into the lime water in a separate beaker and then it will turn into milky white water, thus it is confirmed that alcohol has been formed.