(A) The correct answer is $A$. $2, 4-D$ ($2$,$4$-dichlorophenoxyacetic acid) is a synthetic auxin,not a naturally occurring plant hormone. $GA_2$ is a

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(A) The correct answer is $A$. $2, 4-D$ ($2$,$4$-dichlorophenoxyacetic acid) is a synthetic auxin,not a naturally occurring plant hormone. $GA_2$ is a naturally occurring gibberellin found in plants. Gibberellin is a class of natural plant growth regulators. $IAA$ (Indole$-3-$acetic acid) is the most common naturally occurring auxin in plants.

Class 11 Biology Plant Growth and Development Mix Examples-Plant Growth and Development

Easy

Which one of the following hormones is not found in plants?

A
$2, 4-D$
B
$GA_2$
C
Gibberellin
D
$IAA$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Biology Questions

Chapter

Plant Growth and Development

Subtopic

Mix Examples-Plant Growth and Development

$6$-furfuryl amino purine $(A)$,$2,4$-dichlorophenoxy acetic acid $(B)$,and indole-$3$-acetic acid $(C)$ are examples respectively of:

Medium

View Solution

Match the following:

Column $I$ Column $II$

$a.$ Auxin $(i)$ Root hair formation

$b.$ Cytokinin $(ii)$ Seed development

$c.$ Ethylene $(iii)$ Xylem differentiation

$d.$ $ABA$ $(iv)$ Nutrient mobilisation

Column $I$	Column $II$
$a.$ Auxin	$(i)$ Root hair formation
$b.$ Cytokinin	$(ii)$ Seed development
$c.$ Ethylene	$(iii)$ Xylem differentiation
$d.$ $ABA$	$(iv)$ Nutrient mobilisation