Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 10, Problem 4RA
Summary Introduction
To determine:
The effect of dissociation of rhodopsin in the rods in response to light.
Introduction:
The ability to see things is provided by the human eyes. The human eye has various components that help in the vision. The main cells in the eyes that respond to the light are photoreceptor cells. The photoreceptors in the eye are called rods and cones. Rods have a pigment called rhodopsin which dissociates in the presence of light.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In signal transduction in the dark, the cGMP plays what role?
a. It promotes an action potential in the bipolar cell
b.It promotes a more hyperpolarized resting potential
c. It activates transducin
d. It opens non-selective cation channels
e. It deactivates cGMP phosphodiesterase
At a normal NMJ, action potentials in the skeletal muscle cell can be blocked directly by?
A. Curare, which inhibits nicotinic receptors.
B. Atropine, which inhibits muscarinic receptors.
C. Physostigmine, which inhibits ACHE.
D. AP5, which inhibits NMDA receptors.
E. Pentobarbital, which enhances the function of GABA on GABAA receptors.
Which of the following statements about the intensity of a nerve response is true?
a. A stimulus reaching the threshold level may or may not propagate a nerve impulse.
b. A stimulus resulting in a greater voltage shift will result in a stronger nerve impulse and increased sense of perception in the brain.
c. All stimuli, regardless of the strength, will always generate a nerve impulse.
d. A small voltage shift and a large voltage shift will yield the same nerve impulse as long as the stimulus reaches the threshold level.
Chapter 10 Solutions
Human Physiology
Ch. 10 - Prob. 1aCPCh. 10 - Prob. 1bCPCh. 10 - Prob. 1cCPCh. 10 - Prob. 2CPCh. 10 - Prob. 3CPCh. 10 - Define the term sensory acuity and explain how...Ch. 10 - Prob. 4bCPCh. 10 - Prob. 5CPCh. 10 - Prob. 6CPCh. 10 - Prob. 7aCP
Ch. 10 - Describe the structure of the semicircular canals...Ch. 10 - Prob. 8CPCh. 10 - Prob. 9CPCh. 10 - Prob. 10CPCh. 10 - Prob. 11CPCh. 10 - Using a line diagram, show how parallel rays of...Ch. 10 - Prob. 13CPCh. 10 - Describe the layers of the retina and trace the...Ch. 10 - Prob. 14bCPCh. 10 - Describe the electrical state of photoreceptors in...Ch. 10 - Prob. 16aCPCh. 10 - Prob. 16bCPCh. 10 - Prob. 17CPCh. 10 - Describe the way in which ganglion cells typically...Ch. 10 - How can the arrangement of the receptive fields of...Ch. 10 - Describe the stimulus requirements of simple...Ch. 10 - Prob. 1RACh. 10 - Match the vestibular organ on the left with its...Ch. 10 - Prob. 3RACh. 10 - Prob. 4RACh. 10 - Prob. 5RACh. 10 - Cutaneous receptive fields are smallest in a. the...Ch. 10 - Prob. 7RACh. 10 - The receptors for taste are
a. naked sensory...Ch. 10 - Prob. 9RACh. 10 - Prob. 10RACh. 10 - Prob. 11RACh. 10 - Glasses with concave lenses help correct a....Ch. 10 - Prob. 13RACh. 10 - A bar of light in a specific part of the retina,...Ch. 10 - Prob. 15RACh. 10 - Prob. 16RACh. 10 - Prob. 17RACh. 10 - Epithelial cells release transmitter chemicals...Ch. 10 - Explain what is meant by lateral inhibition and...Ch. 10 - Prob. 20RACh. 10 - Prob. 21RACh. 10 - Explain the relationship between smell and taste....Ch. 10 - Prob. 23RACh. 10 - Prob. 24RACh. 10 - Prob. 25RACh. 10 - Describe the sequence of changes that occur during...Ch. 10 - Prob. 27RACh. 10 - Prob. 28RACh. 10 - Prob. 29RACh. 10 - Prob. 30RACh. 10 - Describe the receptive fields of retinal ganglion...Ch. 10 - Prob. 32RACh. 10 - Discuss the different functions of the pigment...Ch. 10 - Prob. 34RACh. 10 - Prob. 35RACh. 10 - People with conduction deafness often speak...Ch. 10 - Prob. 37RACh. 10 - Prob. 38RACh. 10 - Discuss the role that inertia plays in the...Ch. 10 - Prob. 40RACh. 10 - Prob. 41RACh. 10 - Prob. 42RACh. 10 - Prob. 43RACh. 10 - Prob. 44RACh. 10 - Prob. 45RACh. 10 - Prob. 46RA
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When an impulse passes from one neuron to the next, it a. passes from axon to cell body to dendrite. b. passes from axon to dendrite. c. can bypass the cell bodies of both. d. is passed directly from dendrite to axon.arrow_forwardWhich of the following statements about the intensity of a nerve response is true? Select one: a. A stimulus reaching the threshold level may or may not propagate a nerve impulse. b. A small voltage shift and a large voltage shift will yield the same nerve impulse as long as the stimulus reaches the threshold level. c. All stimuli, regardless of the strength, will always generate a nerve impulse. d. A stimulus resulting in a greater voltage shift will result in a stronger nerve impulse and increased sense of perception in the brain.arrow_forwardWhich of the following is true of neuropeptides?A. They produce effects that last for minutes.B. They are chemically similar to the genes on a chromosome.C. They are released close to their receptors.D. They are released from the tip of an axon.arrow_forward
- What do multiple sclerosis and ALS (amyotropic lateral sclerosis) have in common?a. They both are more common in young men than in young women.b. They both impair the initiation of action potentials.c. They both damage the myelin sheath, disrupting action potential transmission.d. They both impair nerve function in the peripheral nervous systemarrow_forwardHeroin mimics the actions of endorphins, inhibiting pain signals and creating a “high” feeling. Heroin is an example of a(n): a. protagonist. c. agonist. b. antagonist. d. glial cell.arrow_forwardA neurotransmitter called "GABA" decreases the rate of action potential generation in neurons, but the effect can be overridden by excitatory neurotransmitters. Alcohol binds to the GABA receptor and has the same effect. Alcohol must Select one: a. Cause depolarization in neurons b. Cause hyperpolarization in neurons c. Block calcium entry at the axon terminus d. Block voltage-gated sodium channelsarrow_forward
- Each of the following statements is false. Correct each statement to make it true. a. Activation of rhodopsin depolarizes photoreceptors. b. Activated rhodopsin activates transducin which deactivates cGMP phosphodiesterase. c. Cyclic GMP binds sodium channels, keeping them open, leading to the depolarization of photoreceptor in light.arrow_forwardAs the strength of a depolarizing stimulus to an axon is increased, a. the amplitude of action potentials increases. b. the duration of action potentials increases. c. the speed with which action potentials are conducted increases. d. the frequency with which action potentials are produced increases.arrow_forwardLocal anesthetics "block" the action potential and therefore do not allow "pain" information to proceed to the brain and spinal cord. In the presence of these molecules (local anesthetics) 'threshold' is essentially "ignored". The molecules most logically work by: 23. a. Decreasing the intracellular [potassium] b. Blocking the opening of the voltage-gated potassium channels c. Decreasing the extracellular [sodium] d. Blocking the opening of the voltage-gated sodium channelsarrow_forward
- Which of the following is NOT an example of communication that happens from one neuron to another neuron? A. Endocrine signaling (ex. hormones secreted into the blood stream travel and bind to receptors on dstant cells). B. Retrograde neurotransmission (ex.the dendrite releases a neuroactive substance that binds to receptors on the axon terminal of a presynaptic neuron). C. Electrical communication via propagation of action potential from one node of ranvier to the next node of ranvier. D. Volume transmission (ex. neuropeptides diffuse away from the synapse and bind to receptors on adjacent cells) E. Electrical communication through gap junctions.arrow_forwardIn complete darkness, why are there no neural signals being sent to the brain by the retinal ganglion cells? A. glutamate release from rods stimulates the retinal ganglion cells B. glutamate release from rods stimulates bipolar cells which then inhibit retinal ganglion cells C. glutamate release from rods is reduced which then fails to excite retinal ganglion cells D. glutamate release from rods inhibits the bipolar cells which then inhibit retinal ganglion cellsarrow_forwardWhich of the following is not correct about myelin sheaths? Select one: O A. They insulate parts of the neuron axon but not the cell body and dendrites. O B. They are fatty membranes. O C. They are formed by glial cells, namely oligodendrocytes and Schwann cells. O D. They are responsible for saltatory conduction, the process in which the action potentials jump between nodes of Ranvier. O E. They increase the speed of action potential conduction along an axon by increasing the diamter of the axon.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Visual Perception – How It Works; Author: simpleshow foundation;https://www.youtube.com/watch?v=DU3IiqUWGcU;License: Standard youtube license