Homework Answers
Add Answer to:
29 From the following graph, which channels/pumps are open/active at position 4? Mark all that apply...
During graded potential on the soma and dendrites, which of these channels are open? (Mark all...
During graded potential on the soma and dendrites, which of these channels are open? (Mark all that apply) 1. Na/K Pump 2. Voltage gated potassium channels 3. Ligand gated sodium channels 4. Voltage gated calcium channels
choices for A: Na+/K+ pumps, voltage gated K+ channels, voltage gated Ca+ channels, voltage gated Na+...
choices for A: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for B: bidirectionally, unidirectionally
choices for C: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for D: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
Consider this graph illustrating the generation of an action potential across the plasma membrane of a stimulated neuron. +40 ACTION POTENTIAL plasma membrane potential...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a solute-specific protein carrier Facilitated diffusion transports solute against its’ concentration gradient Which of the following is TRUE about primary active cell membrane transport? It is a form of transport that requires a protein “pump” It is a form of transport that transports ions and/or solute against their concentration gradient It is a transport mechanism that requires energy released from the splitting of ATP by...
1. What channels or carriers are NOT found at the axon to the axon terminal? Select...
1. What channels or carriers are NOT found at the axon to the axon terminal? Select one: a. Na+ leaky channels b. Cl- gated channels c. Na+ gated channels d. Na+-K+ ATPase e. None of the above 2. What is TRUE about action potential in the neuron? There may be more than one answer. Select one or more: a. At resting membrane potential (-70mV), the inactivation gate of the Na+ channel is closed while the activation gate is opened. b....
Question 4 2 pts During and action potential, sodium (Na+) rushes into the cell causing of...
Question 4 2 pts During and action potential, sodium (Na+) rushes into the cell causing of the cell. Then sodium channels close and potassium (K+) rushes out of the cell, causing of the cell. However, the potassium overshoots and causes Question 5 2 pts During the refractory period, the pumps Na+ ions out of the cell and K+ions into the cell, re-establishing the resting membrane potential and concentration gradient. Serotonin Acetylcholine Glutamate Endorphins Barbiturates GABA Dopamine Cocaine Sodium Potassium Calcium...
47. Active transport of solutes is mediated by and in plant and animal cells, respectively A....
47. Active transport of solutes is mediated by and in plant and animal cells, respectively A. H-pump and Ca-pump B. K-pump and Ca-pump C. Na-pump and H'-pump D. H-pump and Na"-pump E. C & D 48. One is NOT TRUE about integral membrane proteins. A. They can move inside the lipid bilayer B. Their hydrophobic amino acid side chains face the lipid bilayer C. Their hydrophilic amino acids form the hydrophilic pore D. They can easily by separated from the...
please write thorough answers thanks PART 1 Answer ONLY ONE of the following TWO questions of...
please write thorough answers thanks
PART 1 Answer ONLY ONE of the following TWO questions of Part 1 ie a) OR b) a) A typical, healthy nerve cell in the body has intracellular and extracellular Na, K and Cl' concentrations as shown below. Na concentration: Extracellular: = 150 mm K concentration: Extracellular: = 4 mm Ci concentration: Extracellular: = 100 mm Temperature = 37°C (303.3K) R (the Universal Gas constant) = 8.315 VCmol'k F (Faraday's constant) = 96,485 Cmol Intracellular:...
The peak of an action potential reaches +30 mV. This is because a. all of the...
The peak of an action potential reaches +30 mV. This is because a. all of the available Na+ voltage activation gates are open b. all of the K+ voltage-gated channels open c. of the absolute refractory period d. of the decreased Na+ concentration gradient e. all of the available Na+ voltage inactivation gates are closed
13. Which structure is most responsible for the all-or-none property of the action potential? a. Myelin...
13. Which structure is most responsible for the all-or-none property of the action potential? a. Myelin b. Voltage-gated K channels c. Voltage-gated Nat channels (this) d. Leakage of K+ channels
25. A woman runs a marathon in 30°C weather and replaces all volume lost in sweat by drinking dis...
25. A woman runs a marathon in 30°C weather and replaces all volume lost in sweat by drinking distilled water. After th A) decreased total body water (TBW) B) decreased haematocrit C) decreased intracellular fluid (ICF) volume e marathon, she will have decreased plasma osmolarity increased intracellular osmolarity 26. Which of the following ions has a higher concentration in intracellular fluid (ICF) than in extracellular fluid (ECF)? C1 D) HC03 E) Ca2+ 27. One gram of mannitol was injected into...
choices for A: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for B: bidirectionally, unidirectionally
choices for C: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for D: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
Consider this graph illustrating the generation of an action potential across the plasma membrane of a stimulated neuron. +40 ACTION POTENTIAL plasma membrane potential...
Question 4 2 pts During and action potential, sodium (Na+) rushes into the cell causing of the cell. Then sodium channels close and potassium (K+) rushes out of the cell, causing of the cell. However, the potassium overshoots and causes Question 5 2 pts During the refractory period, the pumps Na+ ions out of the cell and K+ions into the cell, re-establishing the resting membrane potential and concentration gradient. Serotonin Acetylcholine Glutamate Endorphins Barbiturates GABA Dopamine Cocaine Sodium Potassium Calcium...
47. Active transport of solutes is mediated by and in plant and animal cells, respectively A. H-pump and Ca-pump B. K-pump and Ca-pump C. Na-pump and H'-pump D. H-pump and Na"-pump E. C & D 48. One is NOT TRUE about integral membrane proteins. A. They can move inside the lipid bilayer B. Their hydrophobic amino acid side chains face the lipid bilayer C. Their hydrophilic amino acids form the hydrophilic pore D. They can easily by separated from the...
please write thorough answers thanks
PART 1 Answer ONLY ONE of the following TWO questions of Part 1 ie a) OR b) a) A typical, healthy nerve cell in the body has intracellular and extracellular Na, K and Cl' concentrations as shown below. Na concentration: Extracellular: = 150 mm K concentration: Extracellular: = 4 mm Ci concentration: Extracellular: = 100 mm Temperature = 37°C (303.3K) R (the Universal Gas constant) = 8.315 VCmol'k F (Faraday's constant) = 96,485 Cmol Intracellular:...
13. Which structure is most responsible for the all-or-none property of the action potential? a. Myelin b. Voltage-gated K channels c. Voltage-gated Nat channels (this) d. Leakage of K+ channels
25. A woman runs a marathon in 30°C weather and replaces all volume lost in sweat by drinking distilled water. After th A) decreased total body water (TBW) B) decreased haematocrit C) decreased intracellular fluid (ICF) volume e marathon, she will have decreased plasma osmolarity increased intracellular osmolarity 26. Which of the following ions has a higher concentration in intracellular fluid (ICF) than in extracellular fluid (ECF)? C1 D) HC03 E) Ca2+ 27. One gram of mannitol was injected into...
Most questions answered within 3 hours.
-
D. A student completed 20 courses in the School of Arts and
Sciences. Her grades in...
asked 1 minute ago -
teo
pucks moving on a frictionless air table are about to collide. the
1.5 kg puck...
asked 7 minutes ago -
Problem #1
The area between Z = 0 and Z = 2.50
The area between Z...
asked 1 hour ago -
1. What is the meaning of the term communication style?
2. What are the benefits to...
asked 1 hour ago -
9.) You are buying a car that cost $26,500. You make payments of
$412 each month...
asked 1 hour ago -
. Suppose a discrete random variable has probability
distribution
P(x) = .2 if x = 0...
asked 2 hours ago -
Under the influence of its drive force, a snowmobile is moving
at a constant velocity along...
asked 3 hours ago -
Why do organizations decline? What steps can top
management take to halt, decline, and restore organizational...
asked 3 hours ago -
What mechanisms Drive speciation??
(I.e. what was Dawins theory on the orgin of species, and how...
asked 4 hours ago -
The manager at a car assembly plant believes that the mean
assembly time for a car...
asked 5 hours ago -
Which of the following is true of electron capture?
A) It decreases the nuclide's mass number...
asked 7 hours ago -
Assuming an efficiency of 43.10%, calculate the actual yield of
magnesium nitrate formed from 114.9 g...
asked 7 hours ago