Class 11

10. Plant Growth And Development question bank (Botany)

Practice 1,690 free Class 11 Botany - 10. Plant Growth And Development questions with answers and step-by-step solutions.

Start free Book a demo
All Easy Hard Medium
Q1.

Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?  

(A)
It made possible the isolation and exact identification of auxin.
(B)
It is the basis for quantitative determination of small amounts of growth-promoting substances.
(C)
It supports the hypothesis that IAA is auxin.
(D)
It demonstrated polar movement of auxins.
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Q2.

A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?  

(A)
Mutated
(B)
Embolised
(C)
Etiolated
(D)
Defoliated
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Protected Questions

Unlock All 1030 Questions in 10. Plant Growth And Development

Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.

Sign in to unlock Create free account

Sign up free to access all 1,030 questions

Unlock every 10. Plant Growth And Development question, generate papers, and practice at your own pace.

Start free