Sensory Receptors

Question 1

Photoreceptors (vision)

Answer 1

contain light-sensitive pigments. Light interacts with the pigment and produces an electrical signal in a sensory nerve

Question 2

Chemoreceptors (taste and smell)

Answer 2

cells which are sensitive to different chemicals

Question 3

Mechanoreceptors (hearing)

Answer 3

Sound travels as vibrations through air, water and solids. Vibration-sensitive neurone may be attached to larger vibrating structures that select and filter the sounds heard

Question 4

Thermoreceptors (temperate, skin)

Answer 4

detect changes in heat energy as well as changes in temperature