BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
9th Edition
ISBN: 2818000069358
Author: BERG
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 14, Problem 8P
Interpretation Introduction
Interpretation:
The reason due to which calcium ion diffuses more slowly thancAMP needs to be explained.
Concept introduction:
The molecular environment of cell is highly selective. Only selective molecule can enter and go out of the cell depending upon cell need. The passage of is guarded by plasma membrane and proteins associated with it.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Multiple Choice. Imagine a solution containing only water, sodium, and glucose. If a voltage is applied to the solution, glucose would move:
(a) There would be no net movement of glucose
(b) In the opposite direction of sodium
(c) In the same direction and speed as sodium
(d) In the same direction as sodium, but slower.
(e) In the same direction as sodium, but faster.
Only a few. Why do only a small number of sodium ions need to flow
through the Na+Na* channel to change the membrane potential
significantly?
Frog poison. Batrachotoxin (BTX) is a steroidal alkaloid from the skin
of Phyllobates terribilis, a poisonous Colombian frog (the source of
the poison used on blowgun darts). In the presence of BTX, Na+Na*
channels in an excised patch stay persistently open when the
membrane is depolarized. They close when the membrane is
repolarized. Which transition is blocked by BTX?
Chapter 14 Solutions
BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
Knowledge Booster
Learn more about
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
- No free lunch. Explain why maintaining a high concentration of CO2 CO2 in the bundle-sheath cells of C4C4 plants is an example of active transport. How much ATP is required per CO2CO2 to maintain a high concentration of CO2CO2 in the bundle-sheath cells of C4C4 plants?arrow_forwardPlease help me with this question. More than one answer may be correct. THe graph relating to the information is included below. The above figures show the rate of actin polymerization in the presence of various concentration of profilin (Pfn). In the top figure, flourescence intensity is a measure of total actin that has been polymerized, and this is plotted versus time in seconds. The shade of blue of the lines in the top figure correspond to the shaded blue bars representing various concentrations of profilin in the lower figure. The lower graph shows the initial rates of polymerization of actin plotted again concentration. Which of the following is true: Question 21 options: profilin in a molecular motor profilin is a promoter of actin polymerization profilin replaced G-actin in an F-actin strand and breaks the filament profilin is an inhibitor of actin polymerization profilin binds to G-actin, preventing it from polymerizingarrow_forwardTransport. Provided below is an abstracted equation describing an active cell membrane transport from outside the cell to the cytoplasm, involving a membrane carrier (Cmemb), a substrate (Sin) (growth factor etc.) to be carried and released (Sout) into the cytoplasm. a) What kind of feedback mechanism is restricting this process? b) Construct a Forrester Diagram Membrane Transport Carrier, C:C, +S. memb k₁ k_₁ C memb memb + S out Solid Lines. There are two applications in the construction of Forrester diagrams where solid lines can be used to connect state variables. Please name them: a) b)arrow_forward
- Signal transduction pathway. Sketch a G protein in the active and inactive stages, and label its parts.arrow_forwardnerve impulses. Neurotransmitters are packaged by the cell into small, membrane- bound sacs called vesicles. Upon receiving a chemical signal, the vesicles move towards the cell membrane and fuse with it, releasing the enclosed neurotransmitters from the terminal end of the nerve cell. Which organelle is most likely responsible for packaging neurotransmitters into a vesicle? Mitochondria Golgi body Ribosomes Nucleusarrow_forwardPlesae ASAP. thanku Which of the following is not true about the glutamate family of ligand-gated ion channels? a. members are AMPA, kinase, and NMDA channels b. they are cation permable c. channels subunits have 3 full transmembrane doamins d. they require 5 subunits to amke a functional channelarrow_forward
- Cells and Membranes a. Give two examples of molecules that can pass through cell membranes without the need for energy, why can they do so?arrow_forwardAsap. Explanation. Wellarrow_forwardTrue or False. If drug A produces a larger zone of inhibition than drug B on the Kirby-Bauer disk diffusion test, drug A should always be prescribed. Explain your answer.arrow_forward
- Cell signaling. The ER doctors gave a patient an injection of epinephrine to increase his heart rate and blood pressure. The heart rate and blood pressure went up but not enough. The second dose of the same drug seemed not to have an effect. What do you think may be a possible explanation for this result?arrow_forward= 20 nM. The rate of receptor-ligand complex formation with an A receptor-ligand complex has a dissociation constant of Ka added ligand concentration of 10 µM is 5 × 10³ s¯¹. What is the value of the reverse rate constant, k_₁ ? k_₁ = 8-1arrow_forwardYou happen to pass a bar. Distracted by your entrance into the bar, one of the humans inadvertently drank a beverage containing 80 ml methanol. Unfortunately, no medical personnel are on the station, and you do not have access to sickbay. Assume that methanol and ethanol have densities of 0.79 g/ml, and that the alcohols distribute themselves rapidly over the total volume of 73 liters of body fluids of your host. A quick check of the biochemistry textbook that you always carry with you when traversing the promenade reveals that the Km of alcohol dehydrogenase for ethanol is 1 mM and for methanol the Km is 10 mM, and reminds you that alcohol dehydrogenase converts ethanol into acetaldehyde (which can then be converted to acetyl-CoA). Alcohol dehydrogenase also converts methanol into formaldehyde, which is quite toxic to humans. Ingesting 80 ml of methanol will permanently harm the human unless you intervene.b. Someone has a single 600 ml bottle of Romulan ale (52% ethanol), which he is…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
BiochemistryBiochemistryISBN:9781319114671Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.Publisher:W. H. Freeman
Lehninger Principles of BiochemistryBiochemistryISBN:9781464126116Author:David L. Nelson, Michael M. CoxPublisher:W. H. Freeman
Fundamentals of Biochemistry: Life at the Molecul...BiochemistryISBN:9781118918401Author:Donald Voet, Judith G. Voet, Charlotte W. PrattPublisher:WILEY
BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning
BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning
Fundamentals of General, Organic, and Biological ...BiochemistryISBN:9780134015187Author:John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. PetersonPublisher:PEARSON
Biochemistry
Biochemistry
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:W. H. Freeman
Lehninger Principles of Biochemistry
Biochemistry
ISBN:9781464126116
Author:David L. Nelson, Michael M. Cox
Publisher:W. H. Freeman
Fundamentals of Biochemistry: Life at the Molecul...
Biochemistry
ISBN:9781118918401
Author:Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:WILEY
Biochemistry
Biochemistry
ISBN:9781305961135
Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Fundamentals of General, Organic, and Biological ...
Biochemistry
ISBN:9780134015187
Author:John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:PEARSON