Question

Jacobson’s organs are concerned with ……. in amphibians.
(a)Taste
(b)Smell
(c)Touch
(d)Taste and vision

Answer 1

Hint They occur when odorants bind to specific sites on olfactory receptors located in the nasal cavity. In humans and other vertebrates, it can be sensed by olfactory sensory neurons in the olfactory epithelium.

Complete answer:
Jacobson's organ is an organ of chemoreception, which is majorly found within the olfactory system of amphibians, reptiles, and mammals, although it doesn't altogether occur in tetrapod groups. It is also known as a vomeronasal organ. Airborne odors in contrast, are detected by the olfactory sensory cells located within the main nasal chambers. Few groups of mammals also start a behavior referred to as the flehmen response, during which the animal smooths the exposure of the vomeronasal organ to a scent or pheromone through opening the mouth and curling the upper lip throughout inhalation.

Additional information:
The Jacobson's organ receptor neurons have axons that form the vomeronasal organ to the accessory olfactory bulb or, as it's also known, the vomeronasal bulb. These sensory receptors are situated within the medial concave surface of the crescent lumen. The lateral, convex surface of the lumen is roofed with non-sensory ciliated cells, where the basal cells are situated. At the dorsal and ventral quality of the lumen are vomeronasal glands, which complete the vomeronasal lumen with fluid. Sitting next to the lumen are blood vessels that dilate or constrict, making a vascular pump that produces stimuli to the lumen. A thin duct, which opens onto the ground of the cavity inside the nostril, is the only way of access for stimulus chemicals

So, the correct answer is ‘Smell’.

Note: There are many different causes for alteration, lack, or disturbance to the normal sense of smell, and can include damage to the peripheral nose or smell receptors, or central problems affecting the brain. Few causes comprise upper respiratory infections, traumatic brain injury, and neurodegenerative disease.