Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 50.2, Problem 1BC
Summary Introduction
To determine: Whether dopamine is considered as a neurotransmitter or hormone.
Introduction: Neurotransmitters are endogenous chemicals which are used for the transmission of a signal across a synapse. However, the chemical messengers, which are directly secreted into the bloodstream, are called hormones.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Inhibitory post synaptic membrane potential - Data
Cl-
Cl-
Nr of GABA
inside
Max Postsynaptic
Voltage (mV)
outside
receptors
140
20
hel-89-
00
140
20
- 34.428
140
40
- ףQLL-b
Questions
11. What is an IPSP?
12. GABA receptors on the postsynaptic neuron function as ion channels for which
ion?
13. Based on the data collected, when is it more possible for an action potential to
occur? When the intracellular Cl- concentration in the postsynaptic neuron increases
or when the number of GABA receptors on the postsynaptic membrane increases?
14. Explain
Given the steps shown below, which of the following is the correct sequence for transmission at a
chemical synapse?
1. neurotransmitter binds with receptor
2. sodium ions rush into neuron's cytoplasm
3. action potential depolarizes the presynaptic membrane
4. ion channel opens to allow particular ion to enter cell
5. synaptic vesicles release neurotransmitter into the synaptic cleft
O 1, 2, 3, 4, 5
O 5, 1, 2, 4, 3
O 2, 3, 5, 4, 1
O4, 3, 1, 2, 5
O 3, 2, 5, 1, 4
Question B)
Chapter 50 Solutions
Biology
Ch. 50.2 - Prob. 1BCCh. 50.3 - Prob. 1BCCh. 50.3 - Prob. 1EQCh. 50.3 - Prob. 2EQCh. 50.3 - Prob. 3EQCh. 50.4 - Prob. 1CCCh. 50.4 - Prob. 2CCCh. 50.5 - Prob. 1CCCh. 50.5 - Prob. 2CCCh. 50 - Which is the defining feature of hormones? a. They...
Ch. 50 - Steroid hormones are synthesized from ______blank...Ch. 50 - Prob. 3TYCh. 50 - Prob. 4TYCh. 50 - Prob. 5TYCh. 50 - Prob. 6TYCh. 50 - Which of the following pairs of hormones are...Ch. 50 - In invertebrates, molting of larvae is stimulated...Ch. 50 - Which of the following is true of the adrenal...Ch. 50 - Prob. 10TYCh. 50 - Prob. 1CQCh. 50 - Distinguish between type 1 and type 2 diabetes...Ch. 50 - Core Concept: Systems Organ systems often exert...Ch. 50 - Discuss the roles of hormones in growth and...Ch. 50 - Prob. 2COQ
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
- Subject: Neurophysiology The neuron for this experiment is in a bath with [K+] = 2 mM and [Na+] = 150 mM. Calculate the Nernst Equilibrium potential for each ion. What is your estimate for the gNa and for gK? If you are more comfortable, use PNa and PK. Remember, these values should be between 0 and 1. What is the resting membrane potential for this cell? Draw an action potential for this neuron in this solution. Keep in mind that this neuron is in unusual solutions. Label each axis and indicate inward and outward currents. Be absolutely certain to label the peak voltage and threshold for the AP!arrow_forwardPlease asaparrow_forwardPlease answer asaparrow_forward
- Need help with Anatomy homeworkarrow_forwardPaper link - https://www.jneurosci.org/content/40/8/1756.long Neuronal Mitochondria Modulation of LPS-Induced Neuroinflammation What is LPS (not just what does it stand for)? Why is it used as a model for neuroinflammation? Describe microglia: where are they found, what role do they play, why can't that role be carried out the same way it is in the rest of the body? Mitofusin2 (Mfn2) is a mitochondrial protein. What is its apparent role? Can you think of a reason why overexpression could be protective against a stress? Is it reasonable that overexpression of this gene could also cause problems (if so, how)? How did the authors arrange that Mfn2 was only upregulated in the brain and spinal cord of TMFN mice, and not in other tissues of the mice? How do they demonstrate this? Briefly describe the roles of these molecules in immunity/inflammation:IL-1βIL-6IL-10TNFα They all belong to a class of molecules; what is that class called? What evidence do the authors provide that…arrow_forwardActivation of which pathway leads to a disinhibition of the thalamus and increased cortical activation? Basal nuclei D Cortex I GABA - Glutamate - Dopamine Striatum C B GPe A GPi/SNr SNC STN GPI/SNr Thalamus O Both B and C O B O A E LK C Fn Altarrow_forward
- help ASAP please ?? regardsarrow_forwardPls help ASAParrow_forwardNe ansmitter I. Sequencing Arrange the events that occur during synaptic transmission. Use letters A-F to denote the correct sequence. Use the diagram on the right as a clue. SENDING NEURON Example: vessces Synepte B1. lon channel opens SYNGPSE 1. lon channel opens 2. Neurotransmitter is released into synaptic SYNAPTac CLEFT cleft RECEMNG NEURCN4 3. Vesicle fuses with plasma membrane Jon chen nels Neurotren s mitter F eptor Neurotrensmitter broken down znd setacsed 4. Neurotransmitter binds to receptor Bons 5. Action potential arrives burnu 6. lon channel closesarrow_forward
- Question:- what receptor helps distinguish between organic and inorganic ? what does not remove neurotransmitter from the synapse ?arrow_forwardMulti-cell recordings from the human motor cortex can be used to guide a robotic arm. Discuss BCI and action control: a) How the woman controls the robotic arm b) She has been paralyzed for over 20 years, but this BCI system still works for her. What does that mean? c) What kinds of information do motor neurons code?arrow_forwardQuestion:- On a neuron, where is it unlikely for voltage activated potassium channels, sodium channels or calcium channels to be found ? Or is it found everywhere?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY