Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134015187
Author: John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher: PEARSON
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Chapter 29.3, Problem 29.1CIAP
Interpretation Introduction
Interpretation:
An asymmetric transport system has to be defined with a specific example of such system.
Concept introduction:
Glycine is a potent neurotransmitter that must cross the brain cells; the transport system which involved in this process is Asymmetric transport system.
Asymmetric transport system is the mode of transportation through cell membrane that is restricted to one direction.
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Discuss carrier-mediated transport. How could you experimentally distinguish between the different types of carrier-mediated transport?
The type of transport shown in this figure is best described by which of the following pairs of terms:
Low
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Palytoxin is a deadly compound found in certain marine
animals. When scientists first isolated palytoxin from sea
corals in the 1970s, they did not know how it affected
people exposed to it. In time, they began to suspect that
the toxin was interfering with the sodium-potassium pump.
Researchers have measured the effect of palytoxin on ion
transport through the sodium-potassium pump using the
patch-clamp technique. This involves using a fine-tipped
microelectrode to measure the electric current across pumps
in the cell membrane. In this activity, you will examine some
of the researchers' results and conclusions.
Procedure
1. Read the following observations that researchers made
after adding palytoxin to a membrane, and then answer
the questions.
• Observation 1: The current across a single pump
jumped from 0 picoamperes to 1 picoamperes.
• Observation 2: When ATP was added to the
cytoplasm-facing side of the membrane, the current
across a group of pumps increased by a factor of 8…
Chapter 29 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
Ch. 29.1 - Prob. 29.1KCPCh. 29.3 - Prob. 29.1CIAPCh. 29.3 - Prob. 29.2CIAPCh. 29.3 - Prob. 29.3CIAPCh. 29.3 - Prob. 29.4CIAPCh. 29.3 - Match each term in the (a)(e) group with its...Ch. 29.5 - Prob. 29.3KCPCh. 29.5 - Prob. 29.4PCh. 29.5 - Prob. 29.5PCh. 29.8 - Prob. 29.5CIAP
Ch. 29.8 - Prob. 29.6CIAPCh. 29.8 - One of the more advanced blood tests used to...Ch. 29 - Body fluids occupy two different compartments,...Ch. 29 - Prob. 29.7UKCCh. 29 - Prob. 29.8UKCCh. 29 - Prob. 29.9UKCCh. 29 - Prob. 29.10UKCCh. 29 - Prob. 29.11UKCCh. 29 - Prob. 29.12UKCCh. 29 - Prob. 29.13APCh. 29 - Prob. 29.14APCh. 29 - Prob. 29.15APCh. 29 - Prob. 29.16APCh. 29 - Prob. 29.17APCh. 29 - Prob. 29.18APCh. 29 - Prob. 29.19APCh. 29 - Prob. 29.20APCh. 29 - Prob. 29.21APCh. 29 - Prob. 29.22APCh. 29 - Prob. 29.23APCh. 29 - What are the three main types of cells found in...Ch. 29 - Prob. 29.25APCh. 29 - Prob. 29.26APCh. 29 - Prob. 29.27APCh. 29 - Prob. 29.28APCh. 29 - Prob. 29.29APCh. 29 - Prob. 29.30APCh. 29 - Prob. 29.31APCh. 29 - Prob. 29.32APCh. 29 - Prob. 29.33APCh. 29 - Prob. 29.34APCh. 29 - Prob. 29.35APCh. 29 - Prob. 29.36APCh. 29 - Prob. 29.37APCh. 29 - Prob. 29.38APCh. 29 - Prob. 29.39APCh. 29 - Prob. 29.40APCh. 29 - Prob. 29.41APCh. 29 - Prob. 29.42APCh. 29 - What color is deoxyhemoglobin? Why?Ch. 29 - Prob. 29.44APCh. 29 - Prob. 29.45APCh. 29 - Prob. 29.46APCh. 29 - Prob. 29.47APCh. 29 - Prob. 29.48APCh. 29 - Prob. 29.49APCh. 29 - Prob. 29.50APCh. 29 - Prob. 29.51APCh. 29 - Prob. 29.52APCh. 29 - Prob. 29.53APCh. 29 - Prob. 29.54APCh. 29 - Prob. 29.55CPCh. 29 - Prob. 29.56CPCh. 29 - Prob. 29.57CPCh. 29 - How does active transport differ from osmosis?Ch. 29 - Prob. 29.59CPCh. 29 - Prob. 29.60CPCh. 29 - Prob. 29.61CPCh. 29 - Prob. 29.62CPCh. 29 - Have each member of your group choose an energy...Ch. 29 - Prob. 29.64GPCh. 29 - Prob. 29.65GP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- Below find the structures for ibogaine and cocaine. Ibogaine and cocaine inhibit the dopamine active transporter (DAT). This transporter is a secondary active transporter, and depends on the primary active transporter Na+/K+ ATPase. Ibogaine had a Kι = 2 μM, and cocaine a Kι = 0.64 μM respectively. (a) Define secondary active transport. (b) Is ibogaine an effective treatment for cocaine based on DAT binding?arrow_forwardWhat determines the magnitude of flux across a membrane in a mediated-transport system?arrow_forwardThe transport of a molecule is investigated using two chambers (left and right) separated by a synthetic membrane containing transport proteins. A solution containing varying concentrations of the molecule is added to the left side while pure water is added to the right. The transport rate of the molecule is determined by measuring the concentration of molecule that accumulates on the right side. The following table summarizes the transport rate of the molecule at various concentrations. Based on this you can conclude: a) the molecule is most likely transported by facilitated diffusion b) the molecule is moving across the membrane by passive transport c) the membrane is freely permeable to the molecule d) the molecule is most likely transported by active transportarrow_forward
- what are the two forms of transport ? describe them active and passive transportarrow_forwardThe sodium-calcium-exchanger (NCX) protein is an antiport protein that is located in the membranes of cardiac muscle cells in humans as well as other cells. Antiport proteins transport two different solutes in opposite directions. The sodium-calcium-exchanger protein functions by secondary active transport and requires the sodium-potassium pump in order to function. The sodium-potassium pump functions by primary active transport and transports sodium ions from the intracellular fluid to the extracellular fluid. • Describe how the sodium-potassium pump provides energy for the function of the sodium-calcium-exchanger. Considering that the NCX protein is an antiport protein, describe the concentration gradient of calcium on both sides of the cell membrane. Describe the direction that the calcium ions are transported.arrow_forwardWhy is bulk transport important to cells? Among the three types bulk transport of molecules which do you think is most efficient and selective? (T/I)arrow_forward
- For each type of membrane transport, know the following:– Is a transporter protein required? If so, what type?– Is there an energy requirement, and if so, what is the energy source?– What is the relative rate of solute transport based on molecule type? On concentration gradient?– What are examples of the types of solutes transported by carriers and channels?arrow_forwardThe salt concentration in the cytosol of body cells of seawater fish is lower than it is in their environment. This causes the fish to continually lose water. To compensate for this loss, seawater fish continuously ingest water and rely on membrane-bound proteins on their gills for the removal of salt ions back to the environment. Which of the following describes the most likely mechanism of membrane transport used by seawater fish to remove the salt ions? A B с D exocytosis simple diffusion active transport facilitated diffusionarrow_forwardWhat is another way to answer this question Describe various examples of active transport. How is active transport different from passive transport? Without saying this: Active transport is when cells move against the flow/ concentration gradient, moving from low concentrations to high concentrations. Because of this, active transport requires ATP to work. Passive transport is different because it doesn't use much energy and moves from high concentration to a low concentration. Some examples of active transport are the Sodium-potassium pump ( the most well known one) where it takes sodium ions and pumps them outside of the membrane to let in potassium ions. Another one in plants is when a plant receives ions from the soil. The soil has a much lower concentration of ions than a plants root does, so ions have to move against the concentration gradient. Endocytosis and exocytosis are also forms of active transport. Where cells engulf its self around large molecules to bring…arrow_forward
- Discuss the following statement: “The differences between a channel and a transporter are like the differences between a bridge and a ferry.”arrow_forwardMake a schematic diagram showing one concrete situation you would on medicolegal transport.arrow_forwardshown below, which of the following would likely happen if the glucose facilitated diffusion transporter, typically located on the basal side of epithelial cells, was also located in the apical side. [Glucose] low Glu Na [Na] high Lumen of kidney or intestine Apical membrane Epithelial cell [Glucose] high Glu Na* [Na] low Glucose would be actively transported into the lumen of the organ. Glucose concentration would be higher in the lumen of the organ and lower in the cytosol of the epithelial cells. O More glucose would be transported in the extracellular fluid. O The sodium/potassium ATPase would stop working.arrow_forward
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