Bio 212 Exam 5 Kukday Questions and
Answers|Latest Update
The last ossicle, the ___, vibrates against the oval window. In response, the oval window
generates waves of fluid inside the ___. stapes; cochlea
Process: bending opens the ion channels 1. Pressure wave bends stereocilia
2. Potassium channels open
3. Membrane depolarizes
4. Calcium flows in
5. Synaptic vesicles fuse
6. Neurotransmitter is released
Sclera strong white outer sheath of the eye
Rods sensitive to low intensity light, do not discriminate colors, used mostly at night
Cones require more light for stimulation, detect color, fewer cones than rods in human
retina
, Bio 212 Exam 5 Kukday Questions and
Answers|Latest Update
Rods and cones are deepest... against the sclera
When cells are in the resting state... the inside of the plasma membrane is more negative
than the exterior
If ion flows cause the interior to become more positive (less negative)... the membrane is
depolarized
If a sensory stimulus induces a large change in a sensory receptor's membrane potential, there
is... a change in the firing rate of action potentials sent to the brain
The amount of depolarization or hyperpolarization of the sensory receptor is proportional to...
the intensity of the stimulus
Slow fiber muscle red, high myoglobin concentration, derive most ATP via aerobic
respiration (slow oxidative), many mitochondria, slow twitch, fatigues slowly
Answers|Latest Update
The last ossicle, the ___, vibrates against the oval window. In response, the oval window
generates waves of fluid inside the ___. stapes; cochlea
Process: bending opens the ion channels 1. Pressure wave bends stereocilia
2. Potassium channels open
3. Membrane depolarizes
4. Calcium flows in
5. Synaptic vesicles fuse
6. Neurotransmitter is released
Sclera strong white outer sheath of the eye
Rods sensitive to low intensity light, do not discriminate colors, used mostly at night
Cones require more light for stimulation, detect color, fewer cones than rods in human
retina
, Bio 212 Exam 5 Kukday Questions and
Answers|Latest Update
Rods and cones are deepest... against the sclera
When cells are in the resting state... the inside of the plasma membrane is more negative
than the exterior
If ion flows cause the interior to become more positive (less negative)... the membrane is
depolarized
If a sensory stimulus induces a large change in a sensory receptor's membrane potential, there
is... a change in the firing rate of action potentials sent to the brain
The amount of depolarization or hyperpolarization of the sensory receptor is proportional to...
the intensity of the stimulus
Slow fiber muscle red, high myoglobin concentration, derive most ATP via aerobic
respiration (slow oxidative), many mitochondria, slow twitch, fatigues slowly
