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  • Match the terms of Column (A) with those of Column (B) Column (A) Column (B) (a) Olfactory receptors (i) Tongue (b) Thermo receptors (temperature receptors) (ii) Eye (c) Gustatoreceptors (iii) Nose (d) Photoreceptors (iv) Skin

 Match the terms of Column (A) with those of Column (B)

 Column (A)                                                                 Column (B)

(a) Olfactory receptors                                                (i) Tongue

(b) Thermo receptors (temperature receptors)            (ii) Eye

(c) Gustatoreceptors                                                    (iii) Nose

(d) Photoreceptors                                                       (iv) Skin

Answers (1)

Answer: (a)- 3. (b)-4, (c)-1, (d)-2

Solution:
Sensory receptors are nerve receptors present in different organs of a body and respond to stimulus. Olfactory receptors, thermoreceptors, gustatory receptors, photoreceptors are different sensory receptors. Olfactory receptors present in the nose helps to recognise different types of smell. Thermoreceptors are non-specialised sensory neurons which connect the skin to the hypothalamic region of the brain and detects temperature change. Gustatory receptors also called taste receptors are present in the tongue and detects taste. Photoreceptors are present in eyes. There are two types of photoreceptors, i.e, rods and cones. They contain coloured pigments which help to differentiate between colours.

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