Question

given below is a set of 6 experimental setup(A-F) keep in this state for about 24 hour a) in how many flasks the different plant parts have been kept under observation ?b) what is the purpose of keeping a test tube containing lime water in each flask ?c) in which tube/of tubes the lime water will turn milky ?d) what is the purpose of the setup F?e) what conclusion can you draw from this experiment

Answer 1

Answer:

(a) Five flasks (A-E) are having different plant parts for observation.

(b) Limewater absorbs CO2 present in the flasks. If CO2 is produced, limewater turns milky.

(c) All the five flasks (A-E) containing plant parts will show respiration and thus, the tubes containing limewater will turn milky. The flask F does not contain any plant part. So, there is no respiration and hence, there is no change.

(d) Set-up F acts as a control for the experiment, where all the conditions are similar except for the plant part, which is missing.

(e) It can be concluded from this experiment that CO2 is produced during respiration.