ANATONY&PHYSIOLOGY LL TEXT+CONNECT>BI<
4th Edition
ISBN: 9781266014420
Author: McKinley
Publisher: MCG CUSTOM
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Question
Chapter 4.4, Problem 15WDYL
Summary Introduction
To determine:
How is the resting membrane potential established, and what role does the sodium-potassium channel play in it.
Introduction:
When an electrode is placed on either side of the cell membrane, there is a record of electrical activity. The cell membrane has an electrical charge.
This electrical charge or the voltage across the membrane at rest is called the resting membrane potential.
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Define electrochemical gradients and the term “polarized”, and describe the electrochemical basis of the resting membrane potential including the function of the sodium-potassium pump in maintaining the resting membrane potential.
Explain the contribution of the Na+/K+ pump activity to the genesis and maintenance of the resting membrane potential and indicate which category of membrane transport the Na+/K+ pump belongs to
What role do the Na+/K+ pumps play in establishing the resting membrane potential?
Chapter 4 Solutions
ANATONY&PHYSIOLOGY LL TEXT+CONNECT>BI<
Ch. 4.1 - What is the advantage of using a TEM instead of an...Ch. 4.1 - Prob. 2WDYLCh. 4.1 - What are the three main structural features of a...Ch. 4.1 - What cellular structure is responsible for forming...Ch. 4.2 - How do lipids maintain the basic physical barrier...Ch. 4.2 - What type of plasma membrane protein provides the...Ch. 4.3 - How does O2 diffuse into a cell and CO2 diffuse...Ch. 4.3 - Prob. 8WDYLCh. 4.3 - Define osmosis.Ch. 4.3 - What occurs to the tonicity of a cell when it is...
Ch. 4.3 - What general conclusion can you make concerning...Ch. 4.3 - What transport process involved in the movement of...Ch. 4.3 - Diagram a flowchart for the active processes of...Ch. 4.4 - Define a resting membrane potential.Ch. 4.4 - Prob. 15WDYLCh. 4.5 - What are some examples of how cells communicate...Ch. 4.5 - How do action of enzymatic receptors and G...Ch. 4.6 - Describe the general structure of both the...Ch. 4.6 - Lysosomes and peroxisomes are both small...Ch. 4.6 - Which non-membrane-bound organelle functions (a)...Ch. 4.6 - Which cellular surface structure functions in (a)...Ch. 4.6 - Which cellular junction (a) provides resistance to...Ch. 4.7 - What is the function of nuclear pores within the...Ch. 4.7 - What is the function of the nucleolus?Ch. 4.7 - Describe the structural relationship of DNA and...Ch. 4.8 - What are the three major structures required for...Ch. 4.8 - What is a codon and an anticodon?Ch. 4.8 - How is mRNA attached to ribosomes and translated...Ch. 4.8 - The genetic code of DNA is the specific...Ch. 4.9 - How is chromatin distinguished from a chromosome?Ch. 4.9 - Describe the process of DNA replication that...Ch. 4.9 - What are the events that occur during the mitotic...Ch. 4.10 - What are the specific changes that occur to DNA...Ch. 4 - Prob. 1DYKBCh. 4 - _____ 2. The molecule that is responsible for most...Ch. 4 - Prob. 3DYKBCh. 4 - Prob. 4DYKBCh. 4 - Prob. 5DYKBCh. 4 - Prob. 6DYKBCh. 4 - Prob. 7DYKBCh. 4 - Prob. 8DYKBCh. 4 - _____ 9. During this stage of mitosis, the...Ch. 4 - _____ 10. Erythrocytes do not have a nucleus. In...Ch. 4 - Prob. 11DYKBCh. 4 - Prob. 12DYKBCh. 4 - Describe the passive processes of membrane...Ch. 4 - Describe the active processes of membrane...Ch. 4 - List the membrane-bound structures, and describe...Ch. 4 - Prob. 16DYKBCh. 4 - Prob. 17DYKBCh. 4 - Prob. 18DYKBCh. 4 - Prob. 19DYKBCh. 4 - Explain the processes that occur in the different...Ch. 4 - Michael was born with Tay-Sachs disease. Which of...Ch. 4 - Prob. 2CALCh. 4 - Prob. 3CALCh. 4 - Prob. 4CALCh. 4 - Prob. 5CALCh. 4 - Prob. 1CSLCh. 4 - Prob. 2CSLCh. 4 - Prob. 3CSL
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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
- Describe the contribution of each of the following to establishing and maintaining membrane potential: (a) the Na+K+ pump, (b) passive movement of K+ across the membrane, (c) passive movement of Na+ across the membrane, and (d) the large intracellular anions.arrow_forwardConformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)arrow_forwardDescribe in detail what resting membrane potential is and what role the sodium/potassium leakage channels and the sodium-potassium pump play in maintaining this potential.arrow_forward
- What condition is required for a specific ion to contribute to resting membrane potential?arrow_forwardDescribe the ion movement across the cell membrane during the following stages: resting potential, threshold potential, depolarization, repolarization.arrow_forwardDiscuss the Nature and Magnitude of the Resting Membrane Potential?arrow_forward
- Describe how the magnitude and polarity of the sodium and potassium membrane currents vary with the amplitude of membrane depolarizationarrow_forwardBriefly describe the significance of permeability and ionic concentrations in the process of maintenance of cellular membrane potential.arrow_forwardWhy is the sodium-potassium pump indirectly important to the ac-tion potential and to maintaining the resting membrane potential?arrow_forward
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