0 votes
in Biology by (66.3k points)
closed by
In the experimental set-up to show that "the germinating seeds give out the carbon dioxide." Answer the following question:
(i) Why do we keep the conical flask airtight?
(ii) Name the substance kept in the small test tube inside the conical flaskt. Write its role.
(iii) Why does water rise in the delivery tube?

1 Answer

0 votes
by (67.6k points)
selected by
Best answer
(i) To prevent the escape of the gases `(CO_(2))` released during germination the conical flask is kept airtight.
(ii) KOH solution is kept in the small test tube. It is used to absorn carbon dioxide.
(iii) Germinating, seeds release `CO_(2)` which is absorbed by KOH this creates a partial vacuum which caused the water in the delivery tube to rise.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.