Exam 44: Animal Sensory Systems

Damage to sensory receptor cells would most likely result in I. confusion of visual and auditory input. II. inaccurate integration of sensory information. III. an inability to detect sensory information.

Rhodopsins are light- sensitive molecules composed of a protein opsin) and a pigment retinal). The opsin portion of rhodopsin is an example of a

The transduction of sound waves into action potentials by the human ear takes

What would happen to people exposed to a chemical warfare agent that blocked acetylcholine from binding to muscle receptors?

What is the function of the cochlea?

Elephants hear sounds that are too low for humans to hear. This sensitivity is primarily due to the differences in the

Bat echolocation sonar) is most closely related to which human sensory system?

The amount of depolarization that occurs in a sound- receptor cell is proportional to the volume loudness) of the sound.

If you experimentally reduce the concentration of K⁺ in the extracellular fluid surrounding hair cells in the inner ear, the result would be like which of the following?

Corneal surgery is now routinely performed to improve vision. This surgery

The middle ear converts

Vertebrates and cephalopods have eyes that are structurally very similar. One key difference is that cephalopods do not have a blind spot. What causes the blind spot in vertebrates?

How would the absence of the enzyme photodiesterase PDE) affect vision in the vertebrate eye?

What would happen if an enzyme inhibitor for the enzyme phosphodiesterase PDE) was applied to a vertebrate eye?

It can be very difficult to select an angle for sneaking up to a grasshopper to catch it because grasshoppers have

How does the ear allow humans to distinguish the volume of different sounds?

Which of the following is not a true description of the transduction of a stimulus by sensory receptors into signals in the form of action potentials?

During light detection in a photoreceptor, light directly causes what molecular change?

Odourant molecules activate sensory neurons by

In the human retina