<span>Mechanical signals are detected when the hairs are
disturbed. The intensity of the movement of the hair will be proportionate to the
size of the signal. The direction of the movement of the hair will also be influenced
by the direction of the signal. </span>
<span>
</span>
The answer is both receptor and generator potentials.
The two are used synonymously. They are graded potential rather than
all-or-none potentials. This means that several stimuli could depolarise the receptor
successively and a stimuli is spiked only if the summation of the stimuli reach
the threshold for action potential.
The answer is ionotropic. This type of transduction
involves ligand-based receptors. When a receptor binds to the receptor, the
receptor changes conformation and transitions from a closed to an open state.
The opening allows for smaller neurotransmitter molecules to move across the channel
and invoke an impulse. Metabotropic receptors do not have such as opening but
only invoke secondary messengers inside the cells.
The
semicircular canal in the inner ear is responsible for balance. The semi-circular
canal is composed of three semicircular tubes connected in perpendicular to
each other (the horizontal,
superior and posterior semicircular canals). It is filled with fluid and
has hairs mechanoreceptors.
<span>The cochlea in the inner ear is responsible for
the conversion of the sound waves in the ear to impulse in the auditory nerve
that sends the impulse to the brain. Similar to the semicircular canal. The cochlea
is composed of fluid-filled tubes with hair mechanoreceptors in them. </span>
Ionic bonds are bond formed when cation and ion combined together is by transferring of electron so as to acquire Noble gas configuration
From question choice is
are held together by strong electrical forces and are able to dissolve in water
Answer:
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called neurotransmitter.