Question

Write one example each of the following tropic movements :
(i) Positive phototropism (ii) Negative phototropism
(iii) Positive geotropism (iv) Negative geotropism
(v) Hydrotropism (vi) Chemotropism​

Answer 1

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

(i) Positive phototropism: shoots growing towards light.

(ii)Negative phototropism: roots growing away from light towards ground.

(iii) Positive geotropism: growth of roots towards earth due to the pull of the earth.

(iv)Negative geotropism: shoots growing away from the earth.

(v) Hydrotropism: roots growing towards the source of water.

(vi)Chemotropism: growth of pollen tubes towards the ovules.

Answer 2

${\mathcal{\purple{Q}\green{U}\pink{E}\blue{S}\purple{T}\green{I}\pink{O}\red{N}\blue{:-}}}$

Write one example each of the following tropic movements :

(i) Positive phototropism (ii) Negative phototropism

(iii) Positive geotropism (iv) Negative geotropism

(v) Hydrotropism (vi) Chemotropism

${\mathcal{\purple{A}\green{N}\pink{S}\blue{W}\purple{E}\green{R}\pink{!}}}$

$\displaystyle\huge\red{\underline{\underline{(i) Positive phototropism:}}}$ shoots growing towards light. 

$\displaystyle\huge\red{\underline{\underline{(ii) Negative phototropism: }}}$roots growing away from light towards ground.

 

$\displaystyle\huge\red{\underline{\underline{(iii) Positive geotropism: }}}$growth of roots towards earth due to the pull of the earth.

 $\displaystyle\huge\red{\underline{\underline{(iv) Negative geotropism:}}}$ shoots growing away from the earth. 

$\displaystyle\huge\red{\underline{\underline{(v) Hydrotropism:}}}$ roots growing towards the source of water. 

$\displaystyle\huge\red{\underline{\underline{(vi) Chemotropism:}}}$ growth of pollen tubes towards the ovules.ism