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Asked/Added Questions From NCERT:


Question 1. Asked on :23 August 2019:04:33:49 PM

 Which signal will get disrupted in case of a spinal cord injury?

-Added by Himanshi Verma Science » Ch 7

Answer:

priyanshu kumar
 In case of a spinal cord injury. Reflex action impulses from various body parts will not be conducted to brain. Message from brain will not be conducted to various organ of the body.

-Answered by priyanshu kumar On 13 November 2019:08:28:01 AM


Question 2. Asked on :23 August 2019:04:29:51 PM

 How do auxins promote the growth of a tendril around a support?

-Added by Himanshi Verma Science » Ch 7

Answer:

priyanshu kumar
 Auxins are present at the tip of tendrils. When tendrils are attached around any support their growth is slowed down as auxins are sensitive to touch. This make them to the other side of a tip to get support this make the other side grow faster than the side of tendril in contact with the support and the tendril bends towards the support.

-Answered by priyanshu kumar On 13 November 2019:08:28:10 AM


Question 3. Asked on :21 August 2019:05:39:48 PM

 What are receptors and also write its parts?

-Added by Himanshi Verma Science » Ch 7

Answer:

Himanshi Verma

Receptors are specialized tips of some nerve cells that detect the information from the environment. These receptors are located in our sense organs.

Parts of receptors:

(a) Phono receptor= Ear

(b) Photo receptors= Eye

(c) Gustatory receptor= Tongue

(d) Thermo receptors = Skin

(e) Olfactory receptor= Nose.


-Answered by Himanshi Verma On 21 August 2019:05:40:35 PM


Question 4. Asked on :21 August 2019:05:37:27 PM

 What is synapse?

-Added by Himanshi Verma Science » Ch 7

Answer:

Himanshi Verma

 It is the gap between the one ending of one neuron and dendrite of other neuron. Here electrical signal is converted into chemical signal for onward transmission.

-Answered by Himanshi Verma On 21 August 2019:05:38:12 PM


 

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