Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
907 views
in Biology by (45.9k points)
closed by

Define plant hormone. In how many groups does plant growth regulators are classified?

1 Answer

+1 vote
by (44.0k points)
selected by
 
Best answer

A plant hormone is a chemical substance produced naturally in plants which is translocated to another region for regulating one or more physiological reaction, when present in low concentration. Based on functions, plant growth regulators are broadly divided into two groups. 

(i) Growth Promoters: Such plant growth regulators are involved in growth promoting activities such as cell division, cell enlargement, pattern formation etc. These include auxins, gibberellins and cytokinins. 

(ii) Growth Inhibitors: Such PGRs are involved in various growth inhibiting activities such as promotion of dormancy and abscission. These indude abscisic acid and ethylene.

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.

Categories

...