BIO 201 FINAL EXAM STUDY GUIDE
GROSSO 2026 QUESTIONS AND
ANSWERS| ACE YOUR GRADES.
All or nothing - correct answer -principle that either a neuron is
sufficiently stimulated and an action potential occurs (reaches
threshold) or a neuron isn't sufficiently stimulated and an action
potential doesn't occur
Gustatory cells - correct answer -sensory receptors within a taste
bud
Ossicles - correct answer -three small bones in the ear: malleus,
incus, stapes
Malleus - correct answer -a small bone (first) in the middle ear
that transmits vibrations of the eardrum to the incus.
Incus - correct answer -a small anvil-shaped bone in the middle
ear, transmitting vibrations between the malleus and stapes.
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Stapes - correct answer -stirrup; last of the three auditory ossicles
of the middle ear
Iris - correct answer -a ring of muscle tissue that forms the
colored portion of the eye around the pupil and controls the size
of the pupil opening
Pupil - correct answer -The opening through which light enters the
eye
Lens - correct answer -the transparent structure behind the pupil
that changes shape to help focus images on the retina
Sclera - correct answer -white of the eye
Retina - correct answer -the light-sensitive inner surface of the
eye, containing the receptor rods and cones plus layers of
neurons that begin the processing of visual information
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Rods - correct answer -Retinal receptors that detect black, white,
and gray
Cones - correct answer -the receptor cells in the retina that allow
for color perception
Photoreceptors - correct answer -respond to light
Choroid - correct answer -middle, vascular layer of the eye,
between the retina and the sclera
Mechanoreceptors - correct answer -respond to touch, pressure,
vibration, stretch, and itch
Thermoreceptors - correct answer -respond to changes in
temperature
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Avascular - correct answer -without blood vessels
Homeostasis - correct answer -A tendency to maintain a balanced
or constant internal state; the regulation of any aspect of body
chemistry, such as blood glucose, around a particular level
ATP - correct answer -(adenosine triphosphate) main energy
source that cells use for most of their work
ANATOMY - correct answer -study of structure
Physiology - correct answer -Study of function
Anatomical position - correct answer -erect standing position with
arms at the sides and palms facing forward
Superior - correct answer -above