Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 27, Problem 3MCQ
Summary Introduction
Introduction:
Chemoreceptor is the sensory receptor which detect the chemicals. The sense of smell and the taste both depends on the chemoreceptor. The sense of smell is called olfaction whereas the sense of taste is called the gestation. The olfaction cells are present in the nasal cavity and have approximately 20 million receptors cells and mouth consists of about
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Chapter 27 Solutions
Biology: Concepts and Investigations
Ch. 27.1 - Prob. 1MCCh. 27.1 - Prob. 2MCCh. 27.1 - Prob. 3MCCh. 27.1 - Prob. 4MCCh. 27.1 - Prob. 5MCCh. 27.2 - Prob. 1MCCh. 27.2 - Prob. 2MCCh. 27.3 - Prob. 1MCCh. 27.3 - Prob. 2MCCh. 27.4 - Prob. 1MC
Ch. 27.4 - Prob. 2MCCh. 27.4 - Prob. 3MCCh. 27.5 - What are the parts of the ear, and how do they...Ch. 27.5 - How does the vestibular apparatus provide the...Ch. 27.6 - Prob. 1MCCh. 27.6 - Prob. 2MCCh. 27 - As you snuggle into bed, you feel the weight of...Ch. 27 - Prob. 2MCQCh. 27 - Prob. 3MCQCh. 27 - The structures that enable bees to see flowers are...Ch. 27 - What is the function of hair cells in the cochlea?...Ch. 27 - A male moth uses his antennae to detect the...Ch. 27 - Prob. 2WIOCh. 27 - Prob. 3WIOCh. 27 - Try as you might, you cannot tickle yourself....Ch. 27 - Prob. 5WIOCh. 27 - How does the nervous system differentiate among...Ch. 27 - Prob. 7WIOCh. 27 - Prob. 8WIOCh. 27 - Explain why some people hold their nose when...Ch. 27 - Suppose you put on glasses belonging to someone...Ch. 27 - Prob. 11WIOCh. 27 - Prob. 12WIOCh. 27 - In a rare condition called synesthesia,...Ch. 27 - Prob. 1PITCh. 27 - Prob. 2PIT
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- In humans, what happens to visual information from the left visual field?A. It reaches the right half of each retina, which sends messages to the left hemisphere.B. It reaches the right half of each retina, which sends messages to the right hemisphere.C. It reaches the left half of each retina, which sends messages to the left hemisphere.D. It reaches the left half of each retina, which sends messages to the right hemisphere.arrow_forwardWhat function do the malleus, incus, and stapes bones in the inner ear play in processing sounds? A. The bones transform pressure waves into nerve impulses that the brain recognizes as sound. B. The bones equalize pressure between the middle ear and the atmosphere. C. The bones transmit vibrations to the oval window setting the fluid in the cochlea in motion. D. The bones depolarize or hyperpolarize hair cells depending on the direction they vibrate.arrow_forwardAs we progress from bipolar cells to ganglion cells to later cells in the visual system, what happens to the size of receptive fields? a. They become larger. b. They become smaller. c. They stay the same size. d. They vary in size unpredictably.arrow_forward
- Why is it possible for us to taste a wide variety of chemicals as bitter? a. All bitter substances are chemically similar. b. We have 25 or more types of bitter receptors. c. We have a bitter receptor that is versatile enough to detect many types of chemicals. d. Sweet and sour receptors can detect bitter substances.arrow_forwardIf a kitten has one eye shut for its first few weeks of life, its visual cortex becomes insensitive to that eye. Why? a. The receptors die. b. Any axon that is not used for that long becomes unable to respond. c. Activity from the active eye displaces synapses from the inactive eye.arrow_forwardWhat is the “retina” of the olfactory system? a. The olfactory epithelium b. The olfactory bulb c. The nose d. Hair cellsarrow_forward
- What early experience is necessary to maintain binocular input to the neurons of the visual cortex? a. Cortical cells will always maintain binocular responsiveness, regardless of their experience. b. Cortical cells must receive some input to each eye every day. c. Cortical cells must receive an equal amount of input from the two eyes. d. Cortical cells must usually receive simultaneous input from the two eyes.arrow_forwardIf someone is born with dense cataracts on both eyes, and the cataracts are removed years later, what happens?A. The person remains permanently blind.B. The person gradually recovers all aspects of vision.C. The person gains some vision, but remains impaired on object recognition, motion vision, and depth perception.D. The person gains almost all aspects of vision, but remains greatly impaired on color perception.arrow_forwardTrace the pathway from peripheral sensory receptor to the specific brain region where the sensation becomes conscious, describing every neuron along the way and naming any nerves the neurons travel in. a. taste bud b. olfactory epithelium c. retinaarrow_forward
- Which statement is FALSE? A. The basilar membrane fibers nearer the oval window are long and fluffy B. Sound signals are processed by the resonance of the basilar membrane before reaching the receptors C. Different frequencies of pressure waves in the cochlea cause specific places along the basilar membrane to vibrate, stimulating particular hair cells and sensory neurons. D. None of the choicesarrow_forwardWhat is meant by a “tonotopic map”? a. Each location in the auditory cortex responds to a preferred tone, and these areas are arranged in order from low pitches to high pitches. b. The auditory cortex has axons back and forth to every other part of the cortex and several nuclei of the thalamus. c. Each neuron in the auditory cortex has a distinctive pattern of responding depending on the location of the source of sound in space. d. Each cell in the auditory cortex has a “partner” cell in the visual cortex.arrow_forward
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