The potential difference across the membrane of a relaxed muscle fiber is called resting potential. It amounts to about

The potential difference across the membrane of a relaxed muscle fiber is called resting potential. It amounts to about
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The potential difference across the membrane of a relaxed muscle fiber is called resting potential. It amounts to ... C. `100m V` D. `50- 100mV`
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The resting membrane potential of a cell a. is dependent on the permeability of the cell membrane to K+ being greater than the permeability to Na+ b. falls to zero immediately when Na+, K+ ATPase in the membrane is inhibited c. is usually equal to the equilibrium potential for K+ d. is usually equal to the equilibrium potential for Na+ e. is markedly altered if the extracellular Na+ concentration is increased

Description : The resting membrane potential of a cell a. is dependent on the permeability of the cell membrane to K+ being greater than the permeability to Na+ b. falls to zero immediately when Na+ ... the equilibrium potential for Na+ e. is markedly altered if the extracellular Na+ concentration is increased

Last Answer : is dependent on the permeability of the cell membrane to K+ being greater than the permeability to Na+

The electrophysiological effects of digitalis on Purkinje fibres include the following except: A. Enhancement of resting membrane potential B. Decrease in the slope of phase-0 depolarization C. Increase in the rate of phase-4 depolarization D. Abbreviation of action potential duration

Description : The electrophysiological effects of digitalis on Purkinje fibres include the following except: A. Enhancement of resting membrane potential B. Decrease in the slope of phase-0 depolarization C. Increase in the rate of phase-4 depolarization D. Abbreviation of action potential duration

Last Answer : A. Enhancement of resting membrane potential

The sodium/potassium pump is primarily responsible for the: a) resting potential b) action potential c) excretion of salts d) contraction of muscle fibers

Description : The sodium/potassium pump is primarily responsible for the: a) resting potential b) action potential c) excretion of salts d) contraction of muscle fibers

Last Answer : ANSWER: A -- RESTING POTENTIAL

The smooth muscle structure that is relaxed by cholinergic drugs is: A. Colon B. Gastric fundus C. Major bronchi D. Bladder trigone

Description : The smooth muscle structure that is relaxed by cholinergic drugs is: A. Colon B. Gastric fundus C. Major bronchi D. Bladder trigone

Last Answer : D. Bladder trigone

The smooth muscle structure that is relaxed by cholinergic drugs is: A. Colon B. Gastric fundus C. Major bronchi D. Bladder trigone

Description : The smooth muscle structure that is relaxed by cholinergic drugs is: A. Colon B. Gastric fundus C. Major bronchi D. Bladder trigone

Last Answer : D. Bladder trigone

When the potential difference across a membrane of a neuron equals the threshold, what results? a) movement of the membrane b) action potential c) relaxation d) contraction

Description : When the potential difference across a membrane of a neuron equals the threshold, what results? a) movement of the membrane b) action potential c) relaxation d) contraction

Last Answer : ANSWER: B -- ACTION POTENTIAL 

Insulin increases the permeability of glucose across the plasma membrane of muscle cells by (A) Acting on adenylate cycle (B) By loosening the integrity of the membrane (C) Through Ca2+ ions (D) By membrane cruting the hexose carries of intracellular organelles and making them fuse with the plasma membrane

Description : Insulin increases the permeability of glucose across the plasma membrane of muscle cells by (A) Acting on adenylate cycle (B) By loosening the integrity of the membrane (C) Through Ca2 ... membrane cruting the hexose carries of intracellular organelles and making them fuse with the plasma membrane

Last Answer : Answer : D

What is the difference between resting potential and action potential? -Biology

Description : What is the difference between resting potential and action potential? -Biology

Last Answer : answer:

What is the difference between resting potential and action potential?

Description : What is the difference between resting potential and action potential?

Last Answer : Feel Free to Answer

The resting potential in nerves is produced by difference in a. ions b. charges c. both d. none of them

Description : The resting potential in nerves is produced by difference in a. ions b. charges c. both d. none of them

Last Answer : both

The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the concentration gradient of Na+ across the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane

Description : The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the ... the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane

Last Answer : is terminated by efflux of K+

At resting stage permeability of `K^(+)` ion is more comparatively `Na^(+)` ion through axonal membrane

Description : At resting stage permeability of `K^(+)` ion is more comparatively `Na^(+)` ion through axonal membrane

Last Answer : At resting stage permeability of `K^(+)` ion is more comparatively `Na^(+)` ion through axonal membrane

At resting stage permeability of `K^(+)` ion is more comparatively `Na^(+)` ion through axonal membrane

Description : At resting stage permeability of `K^(+)` ion is more comparatively `Na^(+)` ion through axonal membrane

Last Answer : At resting stage permeability of `K^(+)` ion is more comparatively `Na^(+)` ion through axonal membrane

The neuronal resting membrane of the human brain is : a. maintained by the sodium pump b. around -70mV c. maintained by using ATP for energy d. all above

Description : The neuronal resting membrane of the human brain is : a. maintained by the sodium pump b. around -70mV c. maintained by using ATP for energy d. all above

Last Answer : all above

Plasma membrane in resting condition is very permeable to a. K b. Cl c. Both d. None of them

Description : Plasma membrane in resting condition is very permeable to a. K b. Cl c. Both d. None of them

Last Answer : Cl

The plasma membrane in resting condition is almost impermeable to a. K+ b. Na+ c. Cl d. HCo3

Description : The plasma membrane in resting condition is almost impermeable to a. K+ b. Na+ c. Cl d. HCo3

Last Answer : Na+

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive (a) K+ into the cell (b) K+ and Na+ out of the cell (c) Na+ into the cell (d) Na+ out of the cell.

Description : In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive (a) K+ into the cell (b) K+ and Na+ out of the cell (c) Na+ into the cell (d) Na+ out of the cell.

Last Answer : c) Na+ into the cell

When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both Na+ and K+ ions (c) impermeable to both Na+ and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Description : When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both ... + and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

Last Answer : (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

The following is not true of local anaesthetics: A. The local anaesthetic is required in the unionized form for penetrating the neuronal membrane B. The local anaesthetic approaches its receptor only from the intraneuronal face of the Na+ channel C. The local anaesthetic binds to its receptor mainly when the Na+ channel is in the resting state D. The local anaesthetic combines with its receptor in the ionized cationic form

Description : The following is not true of local anaesthetics: A. The local anaesthetic is required in the unionized form for penetrating the neuronal membrane B. The local anaesthetic approaches its receptor ... the resting state D. The local anaesthetic combines with its receptor in the ionized cationic form

Last Answer : C. The local anaesthetic binds to its receptor mainly when the Na+ channel is in the resting state

In the normal resting state of humans, most of the blood glucose burned as fuel is consumed by (A) Liver (B) Adipose tissue (C) Muscle (D) Brain

Description : In the normal resting state of humans, most of the blood glucose burned as fuel is consumed by (A) Liver (B) Adipose tissue (C) Muscle (D) Brain

Last Answer : Answer : A

Compared to the resting state, vigorously contracting muscle shows (A) An increased conversion of pyruvate to lactate (B) Decreased oxidation of pyruvate of CO2 and water (C) A decreased NADH/NAD+ ratio (D) Decreased concentration of AMP CARBOHYDRATES AND CARBOHYDRATE METABOLISM 21

Description : Compared to the resting state, vigorously contracting muscle shows (A) An increased conversion of pyruvate to lactate (B) Decreased oxidation of pyruvate of CO2 and water (C) A decreased NADH/NAD+ ratio (D) Decreased concentration of AMP CARBOHYDRATES AND CARBOHYDRATE METABOLISM 21

Last Answer : A

Myosin bridges can be prevented from combining actin by two regulator proteins in resting muscle by (a) troponin (b) myofibril (c) troponin and tropomyosin (d) natural inhibiting proteins

Description : Myosin bridges can be prevented from combining actin by two regulator proteins in resting muscle by (a) troponin (b) myofibril (c) troponin and tropomyosin (d) natural inhibiting proteins

Last Answer : Ans:(c)

With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state

Description : With reference to the skeletal muscle myofilaments a. actin is the major constituent of thin filaments b. myosin and tropomyosin combine to form the thick filaments c. troponin is a constituents of thin filaments d. tropomyosin prevents the interaction of actin and myosin in the resting state

Last Answer : actin is the major constituent of thin filaments

What is the potential energy of a 50 newton object resting on the edge of the cliff 30 meters high?

Description : What is the potential energy of a 50 newton object resting on the edge of the cliff 30 meters high?

Last Answer : 1500 joules

A boy on a bicycle is resting at the top of a hill. Then, he rides his bicycle down the hill. Describe how the boy’s potential and kinetic energy differ at the top, middle, and bottom of the hill.?

Description : A boy on a bicycle is resting at the top of a hill. Then, he rides his bicycle down the hill. Describe how the boy’s potential and kinetic energy differ at the top, middle, and bottom of the hill.?

Last Answer : idk

When used as an antiarrhythmic drug, Lidocaine typically (a) Increases action potential duration (b) Increases contractility (c) Increses PR interval (d) Reduces abnormal automaticity (e) Reduces resting potential

Description : When used as an antiarrhythmic drug, Lidocaine typically (a) Increases action potential duration (b) Increases contractility (c) Increses PR interval (d) Reduces abnormal automaticity (e) Reduces resting potential

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Procainamide differs from quinidine in the following respect (a) It does not cause paradoxical tachycardia (b) It has no alfa adrenergic blocking activity (c) It has little antivagal action (d) Both (b) and (c) Ans: D 68. In heart, potassium channels determine (a) Pacemaker function (b) Resting potential (c) Action potential duration (d) All of the above

Description : Procainamide differs from quinidine in the following respect (a) It does not cause paradoxical tachycardia (b) It has no alfa adrenergic blocking activity (c) It has little antivagal action (d) Both (b ... a) Pacemaker function (b) Resting potential (c) Action potential duration (d) All of the above

Last Answer : Ans: D

What is resting potential?

Description : What is resting potential?

Last Answer : When the cell hasn't fired for a certain amount of time it is considered at its resting potential. The resting potential of a neuron is approx. 70 mV because the membrane surrounding the cell lets in ... easier to fire a cell that is at its resting potential than one that is in the refractory phase.

What ions determine the resting potential of a nerve? a) sodium and calcium b) calcium and copper c) potassium and calcium d) sodium and potassium

Description : What ions determine the resting potential of a nerve? a) sodium and calcium b) calcium and copper c) potassium and calcium d) sodium and potassium

Last Answer : ANSWER: D -- SODIUM AND POTASSIUM

The resting potential of a neuron is dependent on what two ions? a) lead and calcium ions b) calcium and phosphate ions c) sodium and potassium ions d) potassium and phosphate ions

Description : The resting potential of a neuron is dependent on what two ions? a) lead and calcium ions b) calcium and phosphate ions c) sodium and potassium ions d) potassium and phosphate ions

Last Answer : ANSWER: C -- sodium and potassium ions

Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the toxic effects that occur during gram-negative bacterial sepsis. The following statement(s) is/are true concerning LPS and the host response. a. The LPS molecule can in itself cause physiologic responses similar to that seen during gram-negative bacterial sepsis b. LPS triggers host macrophages to release a variety of cytokines including TNF-a, IL-1a, and IL-1b, IL-6, and IFN-a c. Excessive cytokine production is not associated with detrimental consequences d. TNFa and IL-1b appear to be the primary mediators within the host, exerting deleterious effects on the host when excessive amounts reach the syst

Description : Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the ... host, exerting deleterious effects on the host when excessive amounts reach the systemic circulation

Last Answer : Answer: a, b, d The LPS molecule exerts diverse effects on the mammalian host. Immunologic responses to LPS include nonspecific polyclonal B-cell proliferation, macrophage activation and ... deleterious effects on the host only after large amounts are secreted and reach the systemic circulation

What is the difference between relaxed and regular cut jeans?

Description : What is the difference between relaxed and regular cut jeans?

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What is the difference between boot cut and relaxed fit for men's jeans?

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What is the difference between fast-twitch and slow-twitch muscle fiber?

Description : What is the difference between fast-twitch and slow-twitch muscle fiber?

Last Answer : Fast-twitch fibers can deliver a quick burst of power.Slow-twitch fibers can maintain a contraction for a longertime.Because of the higher energy demands of slow-twitch fibres (dueto their more ... to have larger stores ofglycogen so that vast quantities of energy can be provided at shortnotice.

Why have our dress codes started becoming far more relaxed in recent decades?

Description : Why have our dress codes started becoming far more relaxed in recent decades?

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How to become popular, respected, confident, and a generally more relaxed person?

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Some work environments and people can be strict and smothering. What work places are known for being relaxed and somewhat tolerable?

Description : Some work environments and people can be strict and smothering. What work places are known for being relaxed and somewhat tolerable?

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When you were a kid, did you have a set timetable of chores to be done around your home, or was there a more relaxed approach to this?

Description : When you were a kid, did you have a set timetable of chores to be done around your home, or was there a more relaxed approach to this?

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Can you provide an example of how relaxed you've been about dirt and germs?

Description : Can you provide an example of how relaxed you've been about dirt and germs?

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How are your teeth positioned when your jaw is relaxed?

Description : How are your teeth positioned when your jaw is relaxed?

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What do you think are the advantages/disadvantages of taking life seriously, versus living life relaxed and a little bit careless?

Description : What do you think are the advantages/disadvantages of taking life seriously, versus living life relaxed and a little bit careless?

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Would you be more relaxed if you did your work from home?

Description : Would you be more relaxed if you did your work from home?

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When you feel upset, what do you do to make yourself, feel more relaxed?

Description : When you feel upset, what do you do to make yourself, feel more relaxed?

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Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` The tricuspid and bicuspid valves are open and semilun

Description : Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` The tricuspid and bicuspid valves are open and semilun

Last Answer : Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` ... False. D. If both Assertion & Reason are false.

In a relaxed fibril, H-zone, a lighter of low density can be seen in the cenre of ______

Description : In a relaxed fibril, H-zone, a lighter of low density can be seen in the cenre of ______

Last Answer : In a relaxed fibril, H-zone, a lighter of low density can be seen in the cenre of ______

Where can I find basic edition women's relaxed gray colored jeans?

Description : Where can I find basic edition women's relaxed gray colored jeans?

Last Answer : You local shops should have those in, go shopping!

What is use of elongated heads and necks and intimate relaxed poses describes periods?

Description : What is use of elongated heads and necks and intimate relaxed poses describes periods?

Last Answer : What is the answer ?