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Introduction:
Hair cells are sensory receptors of hearing system and vestibular system in the ears of all vertebrates. Hair cells are found within the organ of corti on the basilar membrane in the cochlea of the ear.
Answer to Problem 1TY
The correct answer is option (b) hearing in mammals.
Explanation of Solution
Explanation/justification for the correct answer:
Option (b) hearing in mammals. The hair cell detects sounds and head motion to process the hearing and balance control. Hearing loss is usually caused by the damage of hair cells in the cochlea. Hair cells are mechanosensitive cells that are found in vertebrates, and not in invertebrates. So, the correct answer is option (b).
Explanation for incorrect answer:
Option (a) balance in vertebrates and invertebrates. Hair cells are involved in balance control but they are found only in vertebrate animals, and not in invertebrates. So, this is an incorrect option.
Option (c) vision in animals with compound eyes. Hair cells are involved in the process of hearing and balance control, not in vision. While vision in animals is performed by photoreceptors (rod cells and cone cells). So, this is an incorrect option.
Option (d) heat sensing in pit vipers. Hair cells are involved in the process of hearing and balance control in vertebrates. While pit vipers perform heat-sensing by the pit organs. So, this is also an incorrect option.
Option (e) both option (a) and (b). Option (a) is already incorrect. So, this is an incorrect option.
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Chapter 34 Solutions
PRINCIPLES OF BIOLOGY W/CONNECT
- What is the function of outer hair cells? How does the function of these cells differ compared to inner hair cells?arrow_forwardDescribe how the different types of channels can be used to send information from the beginning hair cells down to the brain neurons • Describe how the different channels work together to fire an action potential within a neuronarrow_forwardDescribe Hair Cells of the Organ of Corti?arrow_forward
- The outermost layer of the hair follicle is the ______________. Group of answer choices E. cortex C. hair matrix D. cuticle A. connective tissue root sheath B. epithelial tissue root sheatharrow_forwardIn the cortex :1. What are the structure and function of the epidermis?arrow_forwardWhich statement is true about melanin and melanocytes?a. Melanin is produced by cells that are located in thestratum spinosum.b. Melanin is a pigment that accumulates inside keratinocytes.c. Darker-skinned individuals have more melanocytes thanlighter-skinned individuals.d. Albinism is caused by a lack of melanocytes inthe bodyarrow_forward
- Inner hair cells are _____. A more abundant than outer hair cells and send a signal to the auditory nerve B less abundant than outer hair cells and send a signal to the auditory nerve C more abundant than outer hair cells and change their length in response to a stimulus D less abundant than outer hair cells and change their length in response to a stimulusarrow_forwardWhat is the role of Skin receptors?arrow_forwardStructure 5 contains the _________. hair cells that detect angular acceleration of the head hair cells that detect linear acceleration of the head macula and utricle basilar membrane and hair cells that detect soundarrow_forward
- Whether ion channels open or close within the hair cell cilia is determined by the voltage of the cilia membrane. reflect the action of a second messenger within the cilia. depends on the tension exerted by the tip links on the insertional plaques. is controlled by metabotropic membrane receptors.arrow_forwardAs “naked apes” humans lack the protective investment of fur that shields other mammals from the damaging effects of sunlight. How does human skin respond to ultraviolet radiation in the short term and with continued exposure?arrow_forwardWhich is not the function of the dermis layer? A. Regulates temperature by sweat glands and blood vessel dilation or constriction B. Responds to pressure, pain, and temperature with the use of sensory nerves C. Produces Vitamin D upon exposure to UV light D. Covers and protects the epidermis E. None of the abovearrow_forward
