Question

A student did an experiment to study the role of meristematic tissue in onion roots. For the experiment, an onion was kept in both jars (1 and 2) that were filled with same amount of water. The student measures the length of the roots in both jars on day 3. The student then cuts about 1 cm of the onion roots in jar 2 and measures the length of the root on day 10. The table shows the result of the experiment. Jar Root Length on Day 3 (cm) Length of Root on Day 10 (cm) 1 2.0 6.0 2 2.0 1.0 What can the student conclude from the experiment?

Answer 1

From the following experiment, we can conclude that:

• In Jar 1, the onion has longer roots as the growth continues in it due to intact root tips.
• In Jar 2, the growth of onion has stopped due to the cutting down their tips.
• In Jar 2, the roots has stopped growing as the tips of these roots were cut down and the tissues that help in the growth of roots i.e meristematic tissues are removed from it.