मराठी

The Root of a Plant is : (I) Positively Phototropic but Negatively Geotropic (Ii) Positively Geotropic but Negatively Phototropic (Iii) Negatively Phototropic but Positively Hydrotropic (Iv) Negatively Hydrotropic but Positively Phototropic (A) (I) and (Ii) (B) (Ii) and (Iii) (C) (Iii) and (Iv) (D) (I) and ( - Science

Advertisements
Advertisements

प्रश्न

The root of a plant is :
(i) positively phototropic but negatively geotropic
(ii) positively geotropic but negatively phototropic
(iii) negatively phototropic but positively hydrotropic
(iv) negatively hydrotropic but positively phototropic
(a) (i) and (ii)  (b) (ii) and (iii)  (c) (iii) and (iv)  (d) (i) and (

उत्तर

(b) (ii) and (iii)

The root of a plant is positively geotropic, negatively phototropic and positively hydrotropic.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Control and Coordination - Exercise 1 [पृष्ठ ९५]

APPEARS IN

लखमीर सिंह Biology (Science) [English] Class 10
पाठ 2 Control and Coordination
Exercise 1 | Q 45 | पृष्ठ ९५

संबंधित प्रश्‍न

What is the stimulus in chemotropism?


The root of a plant grows downward. This is known as ______.


When the leaves of a Mimosa pudica plant are touched with a finger, they fold up quickly. This is an example of ______.


The movement of a shoot towards light is:


The top part A of the flask-shaped reproductive organ X in the flower of a plant secrets a surgery substance into its lower part B which goes towards the bottom part C of the flask-shaped organ. When a tiny grain D coming from the top part E of another reproductive organ Y i the flower falls on part A, it grows a long tube F through the organ X i response to the sugary substance and reaches the bottom part C of flask-shaped organ to carry out fertilisation.
(a) Name parts (i) organ X, and (ii) organ Y, inside the flower?
(b) Name parts (i) A (ii) B, and (iii) C, of flask-shaped organ.
(c) Name (i) grain D, and (ii) part E of organ Y.
(d) Name the tube F.
(e) What is the phenomenon of growing a long tube in response to sugary substance in the process of fertilisation in a flower known as?


The tropic movement that helps the climbing vines to find a suitable support is ______.


Heliotropism is a kind of ______.


Name the phenomenon occurring in plants which are under the control of gravity, water and chemicals with one example each that shows the movement involved.


Arrange and rewrite the terms in the group in the correct order so as to be in a logical sequence, beginning with the term that is underlined.

Apical meristem, Positive phototropism, Auxins, Cell elongation.


Define the following term:

Clinostat


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×