The ion that must be present in adequate amount for the binding of cross bridges with actin is

The ion that must be present in adequate amount for the binding of cross bridges with actin is
by

1 Answer

Answer :

The ion that must be present in adequate amount for the binding of cross bridges with actin is A. `Ca^(2+)` B. `Na^(+)` C. `K^(+)` D. `Mg^(2+)`
by
selected by

Related questions

Calcium is important in skeletal muscle contraction because it (a) binds to troponin to remove the masking of active sites on actin for myosin (b) activates the myosin ATPase by binding to it (c) detaches the myosin head from the actin filament (d) prevents the formation of bonds between the myosin cross bridges and the actin filament.

Description : Calcium is important in skeletal muscle contraction because it (a) binds to troponin to remove the masking of active sites on actin for myosin (b) activates the myosin ATPase by binding to it ... filament (d) prevents the formation of bonds between the myosin cross bridges and the actin filament.

Last Answer : (a) binds to troponin to remove the masking of active sites on actin for myosin

Calcium is important in skeletal muscle contraction because it :- (1) binds to troponin to remove the masking of active sites on actin for myosin. (2) activates the myosin ATPase by binding to it. (3) detaches the myosin head from the actin filament. (4) prevents the formation of bonds between the myosin cross bridges and the actin filament.

Description : Calcium is important in skeletal muscle contraction because it :- (1) binds to troponin to remove the masking of active sites on actin for myosin. (2) activates the myosin ATPase by binding to ... filament. (4) prevents the formation of bonds between the myosin cross bridges and the actin filament.

Last Answer : (1) binds to troponin to remove the masking of active sites on actin for myosin.

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)

If the auditor is convinced that the client has an excellent internal control structure, the amount of audit evidence to be gathered. a. Can be significantly less than where internal control is not adequate. b. Will not be affected since the auditor must arrive at an independently determined opinion. c. Must be increased to support the auditor's belief. d. Is not determinable

Description : If the auditor is convinced that the client has an excellent internal control structure, the amount of audit evidence to be gathered. a. Can be significantly less than where internal control is not ... determined opinion. c. Must be increased to support the auditor's belief. d. Is not determinable

Last Answer : Can be significantly less than where internal control is not adequate.

Neuromuscular blocking drugs do not produce central actions because: A. They do not cross the blood-brain barrier B. Nicotinic receptors are not present in the brain C. They are sequestrated in the periphery by tight binding to the skeletal muscles D. They do not ionise at the brain pH

Description : Neuromuscular blocking drugs do not produce central actions because: A. They do not cross the blood-brain barrier B. Nicotinic receptors are not present in the brain C. They are sequestrated in the periphery by tight binding to the skeletal muscles D. They do not ionise at the brain pH

Last Answer : A. They do not cross the blood-brain barrier

In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion concentration C-Temperture

Description : In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion concentration C-Temperture

Last Answer : In which the following factors can interfere in binding of `O_(2)` with haemoglobin. `A-P_(CO_(2))` `B-H^(+)` ion ... A B. B,C C. A and C D. A,B,C

Calculate the radius of the first Bohr orbit of a `He^(+)` ion and the binding energy of its electron in the ground state.

Description : Calculate the radius of the first Bohr orbit of a `He^(+)` ion and the binding energy of its electron in the ground state.

Last Answer : Calculate the radius of the first Bohr orbit of a `He^(+)` ion and the binding energy of its electron in the ground state.

The protein present in the finger nail is (1) Actin (2) Myosin (3) Globin (4) Keratin

Description : The protein present in the finger nail is (1) Actin (2) Myosin (3) Globin (4) Keratin

Last Answer : (4) Keratin Explanation: Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.

Macrophages are professional antigen- presenting cells. The protein molecule through whichthey present antigen in human is A- actin B- nterleukin C- HLA D- .CD8

Description : Macrophages are professional antigen- presenting cells. The protein molecule through whichthey present antigen in human is A- actin B- nterleukin C- HLA D- .CD8

Last Answer : .CD8

The protein present in the finger nail is (1) Actin (2) Myosin (3) Globin (4) Keratin

Description : The protein present in the finger nail is (1) Actin (2) Myosin (3) Globin (4) Keratin

Last Answer : Keratin

Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels in blood, present mostly as a bicarbonate ion, can quickly change c. Normally the amount of carbon dioxide excreted through the lung is exactly equal to the amount of carbon dioxide produced in peripheral tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli

Description : Which of the following statement(s) is/are true concerning carbon dioxide kinetics? a. The amount of carbon dioxide produced is equivalent to the amount of oxygen consumed b. Carbon dioxide levels ... tissues d. The amount of carbon dioxide excreted is a function of ventilation of perfused alveoli

Last Answer : Answer: a, c, d The total amount of carbon dioxide produced by systemic metabolism is roughly equivalent to the amount of oxygen consumed (100-120 cc/m2/min, 200 cc/min in a typical ... carbon dioxide excreted is a function of ventilation of perfused alveoli (i.e. the alveolar ventilation/min).

The functional unit of contractile system in striated muscle is (a) sarcomere (b) Z-band (c) cross bridges (d) myofibril.

Description : The functional unit of contractile system in striated muscle is (a) sarcomere (b) Z-band (c) cross bridges (d) myofibril.

Last Answer : (a) sarcomere

Is it just me or does it seem like there is an adequate equal amount of space per person in an SUV and Sedan?

Description : Is it just me or does it seem like there is an adequate equal amount of space per person in an SUV and Sedan?

Last Answer : answer:666? Are you a republican too?????? If the people need an vehicle than can haul campers and trailers, they might opt for, say, a Suburban. We have a Durango. It's HORRID on gas mileage, but ... stuff too. Fortunately my husband is able to work from home, so 99% of the time we use the Buick.

The inherent capacity of the soil to supply nutrients to plants in adequate amount and in suitable proportions

Description : The inherent capacity of the soil to supply nutrients to plants in adequate amount and in suitable proportions

Last Answer : Ans. Soil Fertility

For a healthy heart, one needs to take a balanced diet, adequate sleep and - (1) indulge in vigorous mental activities (2) play games like carrom, chess and cards (3) do right amount of physical exercise (4) do sedentary work

Description : For a healthy heart, one needs to take a balanced diet, adequate sleep and - (1) indulge in vigorous mental activities (2) play games like carrom, chess and cards (3) do right amount of physical exercise (4) do sedentary work

Last Answer : (3) do right amount of physical exercise Explanation: Physical activity is any form of movement that works our muscles and uses more energy than we use when resting. Walking, running ... and lungs healthy. Physical activity strengthens our heart and reduces coronary heart disease risk factors.

The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs) (c) when treated in STPs does not really require the aeration step as the sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.

Description : The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in ... sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.

Last Answer : (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)

For a healthy heart, one needs to take a balanced diet, adequate sleep and (1) indulge in vigorous mental activities (2) play games like carrom, chess and cards (3) do right amount of physical exercise (4) do sedentary work

Description : For a healthy heart, one needs to take a balanced diet, adequate sleep and (1) indulge in vigorous mental activities (2) play games like carrom, chess and cards (3) do right amount of physical exercise (4) do sedentary work

Last Answer : do right amount of physical exercise

A sum of amount of money is adequate to pay peter’s salary for 42 days and Harish’s salary for 56 days. The same money is adequate to pay the salary of both for. a) 12 days b) 24 days c) 36 days d) 48 days

Description : A sum of amount of money is adequate to pay peter’s salary for 42 days and Harish’s salary for 56 days. The same money is adequate to pay the salary of both for. a) 12 days b) 24 days c) 36 days d) 48 days

Last Answer : B Let the total money be Rs.x Peter’s 1 day salary = Rs. x/42 Harish 1 day salary = Rs. x/56 (peter+harish)’s 1 day salary = Rs(x/42+x/56) =(4x+3x)/168 =7x/168 =x/24 Money is adequate to pay the salary of both for 24 days.

The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) are identical in all species studied (D) are defined as these amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) Are identical in all species studied (D) Are defined as those amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

Which of the following statements are true of a patient with hyperglycemia and hyponatremia? A. The sodium concentration must be corrected by 5 mEq. per 100 mg. per 100 ml. elevation in blood glucose. B. With normal renal function, this patient is likely to be volume overloaded. C. Proper fluid therapy would be unlikely to include potassium administration. D. Insulin administration will increase the potassium content of cells. E. Early in treatment adequate urine output is a reliable measure of adequate volume resuscitation.

Description : Which of the following statements are true of a patient with hyperglycemia and hyponatremia? A. The sodium concentration must be corrected by 5 mEq. per 100 mg. per 100 ml. elevation in blood ... . E. Early in treatment adequate urine output is a reliable measure of adequate volume resuscitation.

Last Answer : Answer: D DISCUSSION: Each 100-mg. per 100 ml. elevation in blood glucose causes a fall in serum sodium concentration of approximately 2 mEq. per liter. Excess serum glucose ... correction of the patient's associated acidosis produce movement of potassium ions into the intracellular compartment

The sewers A. Must be of adequate size to avoid over flow B. Must flow under gravity ½ to ¾ full C. Must be laid at least 2 to 3 m deep to collect /water from the basements D. All the above

Description : The sewers A. Must be of adequate size to avoid over flow B. Must flow under gravity ½ to ¾ full C. Must be laid at least 2 to 3 m deep to collect /water from the basements D. All the above

Last Answer : ANS: D

Receptacle outlets aboard ship should be designed so those mounted according to 46 CFR 111 have _____________. A. there must be a sufficient number of receptacle outlets in the crew accommodations for an adequate level of habitability B. each receptacle outelt must be compatible with the voltage and current of the circuit in which it is installed C. a receptacle outlet must not have any exposed parts with the plug opening uncovered D. all of the above

Description : Receptacle outlets aboard ship should be designed so those mounted according to 46 CFR 111 have _____________. A. there must be a sufficient number of receptacle outlets in the crew accommodations for an ... outlet must not have any exposed parts with the plug opening uncovered D. all of the above

Last Answer : Answer: D

Which of the following is not a legal requirement of a valid consideration? A. It must move at the desire of the promisor B. It must be lawful C. It must be real and not illusory D. It must be adequate

Description : Which of the following is not a legal requirement of a valid consideration? A. It must move at the desire of the promisor B. It must be lawful C. It must be real and not illusory D. It must be adequate

Last Answer : A. It must move at the desire of the promisor

All of the following are requirements of mucoperiosteal flap except of: A. Base is wider than free margin B. Mucous membrane is carefully separated from periosteum C. Base has an adequate blood supply D. Flap wider than bony defect that will be present at conclusion of operation E. Mucoperiosteum is carefully separated from bone

Description : All of the following are requirements of mucoperiosteal flap except of: A. Base is wider than free margin B. Mucous membrane is carefully separated from periosteum C. Base has an adequate ... defect that will be present at conclusion of operation E. Mucoperiosteum is carefully separated from bone

Last Answer : B. Mucous membrane is carefully separated from periosteum

The last step in synthesis of peptidoglycan is A- attachment of a peptide to muramic acid B- attaching two amino acids to form a cross-link C- attachment of a portion of peptidoglycan to a membrane lipid D- binding of penicillin to a membrane protein

Description : The last step in synthesis of peptidoglycan is A- attachment of a peptide to muramic acid B- attaching two amino acids to form a cross-link C- attachment of a portion of peptidoglycan to a membrane lipid D- binding of penicillin to a membrane protein

Last Answer : attaching two amino acids to form a cross-link

Which of the following pairs is not correctly matched? (A) Uranium - 233 : Fertile material (B) Binding energy : Mass defect (C) Scattering: Absorption cross-section (D) Number of nucleons : Mass number

Description : Which of the following pairs is not correctly matched? (A) Uranium - 233 : Fertile material (B) Binding energy : Mass defect (C) Scattering: Absorption cross-section (D) Number of nucleons : Mass number

Last Answer : (A) Uranium - 233 : Fertile material

Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it takes each member a different amount of time to cross the bridge - it takes the first person one minute, the second person two minutes, the third person five minutes and the fourth person ten minutes. They must cross the bridge in pairs, travelling at the slower speed so if the one minute person went with the ten minute person, it would take a total of ten minutes. Since there is only one flashlight, one person must come back across the bridge, then another pair can cross. They only have 17 minutes to cross the bridge and still get to the concert on time. What order should they cross to get eve

Description : Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it ... bridge and still get to the concert on time. What order should they cross to get eve -Riddles

Last Answer : First, the one minute person and the two minute person must cross the bridge, for a total of two minutes. Then the one minute person should come back with flashlight - total of three ... minutes) and gets the one minute person and they cross together bringing the total to seventeen minutes.

Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction. (a) Calcium (b) Magnesium (c) Sodium (d) Potassium

Description : Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction. (a) Calcium (b) Magnesium (c) Sodium (d) Potassium

Last Answer : (a) Calcium

Is actin a microfilament? -Biology

Description : Is actin a microfilament? -Biology

Last Answer : Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest. They function in cellular movement, have a diameter of about 7 nm, and are made of two intertwined ... of a globular protein called actin. For this reason, microfilaments are also known as actin filaments.

Is actin a microfilament? -Biology

Description : Is actin a microfilament? -Biology

Last Answer : Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest. They function in cellular movement, have a diameter of about 7 nm, and are made of two intertwined ... of a globular protein called actin. For this reason, microfilaments are also known as actin filaments.

Is actin a microfilament? -Biology

Description : Is actin a microfilament? -Biology

Last Answer : Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest. They function in cellular movement, have a diameter of about 7 nm, and are made of two intertwined ... of a globular protein called actin. For this reason, microfilaments are also known as actin filaments.

Is actin a microfilament? -Biology

Description : Is actin a microfilament? -Biology

Last Answer : Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest. They function in cellular movement, have a diameter of about 7 nm, and are made of two intertwined ... of a globular protein called actin. For this reason, microfilaments are also known as actin filaments.

What describ happens in th Main Sequence star th blws th nebula around it awy Describ the diferences betwen the T-Tauri and the Main Sequence in terms of which has a higher temperatur, how is their spectrm diferent, and what forces are actin on each objec?

Description : What describ happens in th Main Sequence star th blws th nebula around it awy Describ the diferences betwen the T-Tauri and the Main Sequence in terms of which has a higher temperatur, how is their spectrm diferent, and what forces are actin on each objec?

Last Answer : Sorry for the bad spelling, had to take a few characters out for the question to fit in

$ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are contractile proteins

Description : $ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are contractile proteins

Last Answer : $ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are ... wrong D. If both As and R are wrong.

The number of thick myofilaments (myosin) surrounding Single thin myofilament (actin) are

Description : The number of thick myofilaments (myosin) surrounding Single thin myofilament (actin) are

Last Answer : The number of thick myofilaments (myosin) surrounding Single thin myofilament (actin) are A. 3 B. 6 C. 2 D. 4

What lipid increases actin potential conduction speed?

Description : What lipid increases actin potential conduction speed?

Last Answer : Need answer

A protein having both structural and enzymatic traits is (A) Myosin (B) Collagen (C) Trypsin (D) Actin

Description : A protein having both structural and enzymatic traits is (A) Myosin (B) Collagen (C) Trypsin (D) Actin

Last Answer : Answer : A

Which of the following statement(s) is/are true concerning wound contraction? a. Wound contraction accounts for similar rates of reduction of wound size regardless of their location b. The fibroblast, at the cellular level, is the primary force driving wound contraction c. Excessive wound contraction, when occurring over a joint, may lead to disability d. Actin microfillaments are found in fibroblasts and may play a role in wound contracture

Description : Which of the following statement(s) is/are true concerning wound contraction? a. Wound contraction accounts for similar rates of reduction of wound size regardless of their location b. The fibroblast ... d. Actin microfillaments are found in fibroblasts and may play a role in wound contracture

Last Answer : Answer: b, c, d Wound contraction is an important event which contrasts healing open wounds and closed incisions. When open wounds contract, the surrounding skin is pulled over the open wound ... number in contracting wounds and are felt to play an active role in the process of wound contraction

The activities of the cytoskeleton is dependent on which of the following types of filaments? a. Microtubules b. Intermediate filaments c. Actin filaments d. None of the above

Description : The activities of the cytoskeleton is dependent on which of the following types of filaments? a. Microtubules b. Intermediate filaments c. Actin filaments d. None of the above

Last Answer : Answer: a, b, c The cytoskeleton is a collection of filamentous protein structures that allow cells to assume and maintain a variety of shapes, to produce directed movement of ... activities depend upon three main types of filaments: actin filaments, intermediate filaments, and microtubules

The biochemical mechanism of action of digitalis is associated with (a) A decrease in calcium uptake by the sarcoplasmic reticulum (b) An increase in ATP synthesis (c) A modification of the actin molecule (d) An increase in systolic intracellular calcium levels (e) A block of sodium/calcium exchange

Description : The biochemical mechanism of action of digitalis is associated with (a) A decrease in calcium uptake by the sarcoplasmic reticulum (b) An increase in ATP synthesis (c) A modification of the actin molecule (d) An increase in systolic intracellular calcium levels (e) A block of sodium/calcium exchange

Last Answer : Ans: D

The H-disk in the skeletal muscle fibre is due to (a) the absence of myofibrils in the central portion of Aband (b) the central gap between myosin filaments in the Aband Questions (c) the central gap between actin filaments extending through myosin filaments in the A-band (d) birefringence of myosin filaments in the central portion of A-band

Description : The H-disk in the skeletal muscle fibre is due to (a) the absence of myofibrils in the central portion of Aband (b) the central gap between myosin filaments in the Aband Questions (c) the ... myosin filaments in the A-band (d) birefringence of myosin filaments in the central portion of A-band

Last Answer : Ans:(c)

The contractile proteins in a muscle are (1) Actin and Myosin (2) Actin and Tropomyosin (3) Myosin and Troponin (4)Troponin and Tropomyosin

Description : The contractile proteins in a muscle are (1) Actin and Myosin (2) Actin and Tropomyosin (3) Myosin and Troponin (4)Troponin and Tropomyosin

Last Answer : (1) Actin and Myosin Explanation: Muscle fibers or myofibrils are formed of three types of proteins which are (1) contractile, (2) regulatory, and (3) structural. Contractile proteins are the force ... are Actin which is part of thin filament and Myosin, which is part of the thick filament.

In the skeletal muscle: a. myosin is found in the thick filament b. the thin filament contains actin and troponin c. during stimulus excitation calcium ions are derived from the serum d. tropomyosin masks the myosin-combining sites on the actin

Description : In the skeletal muscle: a. myosin is found in the thick filament b. the thin filament contains actin and troponin c. during stimulus excitation calcium ions are derived from the serum d. tropomyosin masks the myosin-combining sites on the actin

Last Answer : tropomyosin masks the myosin-combining sites on the actin

The following are true about the smooth muscle cells: a. presence of a striated appearance b. do not contain actin and myosin c. spontaneous muscle contraction d. mitochondria are absent

Description : The following are true about the smooth muscle cells: a. presence of a striated appearance b. do not contain actin and myosin c. spontaneous muscle contraction d. mitochondria are absent

Last Answer : spontaneous muscle contraction

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

The following are true about the smooth muscle cells: a. presence of a striated appearance b. do not contain actin and myosin c. spontaneous muscle contraction d. mitochondria are absent

Description : The following are true about the smooth muscle cells: a. presence of a striated appearance b. do not contain actin and myosin c. spontaneous muscle contraction d. mitochondria are absent

Last Answer : spontaneous muscle contraction

Genes are packaged into a bacterial chromosome by (a) acidic protein (b) actin (c) histones (d) basic protein.

Description : Genes are packaged into a bacterial chromosome by (a) acidic protein (b) actin (c) histones (d) basic protein.

Last Answer : basic protein

Which one of the following is the correct matching of three items and their grouping category? Items Group (a) Ilium, ischium, Coxal bones of pelvic girdle pubis (b) Actin, myosin, Muscle proteins rhodopsin (c) Cytosine, uracil, Pyrimidines thiamine (d) Malleus, incus, Ear ossicles cochlea

Description : Which one of the following is the correct matching of three items and their grouping category? Items Group (a) Ilium, ischium, Coxal bones of pelvic girdle pubis (b) Actin, myosin, Muscle proteins rhodopsin (c) Cytosine, uracil, Pyrimidines thiamine (d) Malleus, incus, Ear ossicles cochlea

Last Answer : (a) Ilium, ischium, Coxal bones of pelvic girdle pubis