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1.1 The study of life Read Online
Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.
Chapter 36: Sensory Systems MCQ Multiple Choices Questions Quiz Test Bank
36.1 Sensory Processes
36.2 Somatosensation
36.3 Taste and Smell
36.4 Hearing and Vestibular Sensation
36.5 Vision
Download MCQ Quiz PDF eBook
Question: _____ are found only in _____ skin, and detect skin deflection.
Choices:
Meissner's corpuscles: hairy
Merkel's disks: glabrous
hair receptors: hairy
Krause end bulbs: hairy
Question: After somatosensory transduction, the sensory signal travels through the brain as a(n) _____ signal.
Choices:
electrical
pressure
optical
thermal
Question: Salty foods activate the taste cells by _____.
Choices:
exciting the taste cell directly
causing hydrogen ions to enter the cell
causing sodium channels to close
binding directly to the receptors
Question: Where does perception occur?
Choices:
spinal cord
cerebral cortex
receptors
thalamus
Question: How many different taste molecules do taste cells each detect?
Choices:
one
five
ten
It depends on the spot on the tongue
Question: Auditory hair cells are indirectly anchored to the _____.
Choices:
basilar membrane
oval window
tectorial membrane
ossicles
Question: In sound, pitch is measured in _____, and volume is measured in _____.
Choices:
nanometers (nm); decibels (dB)
decibels (dB); nanometers (nm)
decibels (dB); hertz (Hz)
hertz (Hz); decibels (dB)
Question: If a person's cold receptors no longer convert cold stimuli into sensory signals, that person has a problem with the process of ________.
Choices:
reception
transmission
perception
transduction
Question: If you were to burn your epidermis, what receptor type would you most likely burn?
Choices:
free nerve endings
Ruffini endings
Pacinian corpuscle
hair receptors
Question: All sensory signals except _____ travel to the _____ in the brain before the cerebral cortex.
Choices:
vision; thalamus
olfaction; thalamus
vision; cranial nerves
olfaction; cranial nerves
Question: Which of the following has the fewest taste receptors?
Choices:
fungiform papillae
circumvallate papillae
foliate papillae
filiform papillae
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