Advertisements
Advertisements
प्रश्न
Name the following:
The chemicals generally used to absorb carbon dioxide in respiratory experiments.
Advertisements
उत्तर
Caustic potash and KOH
APPEARS IN
संबंधित प्रश्न
Describe one experiment you would perform to demonstrate the following phenomena: The germinating seeds produce heat.
Describe one experiment you would perform to demonstrate the following phenomena: The germinating seeds to give out carbon dioxide.
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
What is the purpose of keeping potassium hydroxide solution in test tubes X and Y?
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
In how many flasks, the different plant parts have been kept under observation?
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
What is the purpose of keeping a test-tube containing limewater in each flask?
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
What is the purpose of the set-up F?
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
What conclusion can you draw from this experiment?
In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follow:
What change would you expect to observe in bottle 'D'?
In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follow:
In order to obtain accurate results, the bottle 'C' should be covered with black cloth. Why?
Given alongside is an experimental set up to demonstrate a phenomenon in a plant:
(a) What is the aim of this experiment?
(b) Why was the bell jar covered with a black cloth?
(c) What is the function of caustic soda in this experiment?
(d) Give an overall chemical equation of the process mentioned in (a) above.
(e) Mention one precaution that should be taken to ensure more accurate results. What change, if any, would you observe in the lime water in Flask A and B? In each case give a reason for your answer.
