Description : Store house of `Ca^(+2)` in muscle fibre is____
Last Answer : Store house of `Ca^(+2)` in muscle fibre is____
Description : Immediate source of energy for muscle contraction is
Last Answer : Immediate source of energy for muscle contraction is A. Glucose B. GTP C. Creatine phosphate D. ATP
Description : During muscle contraction (a)____ energy is converted into (b)____ energy
Last Answer : During muscle contraction (a)____ energy is converted into (b)____ energy
Description : ATP provides energy of muscle contraction by allowing for
Last Answer : ATP provides energy of muscle contraction by allowing for A. Cross-bridge attachment of myosin to ... Release of `Ca^(+)` from sarcoplasmic reticulum
Description : ADH or vasopressin is (a) enzyme that hydrolyses peptides (b) hormone secreted by pituitary that promotes reabsorption of water from glomerular filtrate (c) hormone that promotes glycogenolysis (d) energy rich compound connected with muscle contraction.
Last Answer : (b) hormone secreted by pituitary that promotes reabsorption of water from glomerular filtrate
Description : During contraction and relaxation of striated muscle fibre the length of A band usually :-
Last Answer : During contraction and relaxation of striated muscle fibre the length of A band usually :- A. ... . Increases C. Decreases D. Decreases too much
Description : The lactic acid generated during muscle contraction us flnally converted to glycogen in
Last Answer : The lactic acid generated during muscle contraction us flnally converted to glycogen in A. Muscle B. Kidney C. Liver D. Pancreas
Description : The following are true: a. Kirschman's law: the greatest contrast in colour is seen when the luminosity differnece is small b. Emmbert's law: the perceived size of an object varies in ... image in the periphery of the retina tends to fade or disappear during steady fixation of another objec
Last Answer : Troxler's phenomenon: an image in the periphery of the retina tends to fade or disappear during steady fixation of another objec
Description : During muscle contraction in humans, the (a) sarcomere does not shorten (b) A band remains same (c) A, H and I bands shorten (d) actin filaments shorten.
Last Answer : (b) A band remains same
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
Description : if you suspect atrial flutter : Consider digoxin if not already in use because it frequently increases the conduction ratio and decreases the ventricular rate. , Avoid adrenergic and ... to the muscle decrease blood supply to the muscle the heart trying to beat fast ______________________________
Last Answer : decrease O2 supply to the muscle
Description : Depolarizing neuromuscular blockers differ from competitive blockers in the following attributes except: A. They induce contraction of isolated frog rectus abdominis muscle B. Ether anaesthesia ... produces well sustained contraction D. Neostigmine does not reverse block produced by them
Last Answer : B. Ether anaesthesia intensifies block produced by them
Description : If `(A + B^(T))^(T)` is a matrix of order `4 xx 3`, then the order of matrix B is____.
Last Answer : If `(A + B^(T))^(T)` is a matrix of order `4 xx 3`, then the order of matrix B is____.
Description : If 5M=3N, then M:N is____
Last Answer : If 5M=3N, then M:N is____
Description : The number of moles of Maganate ion used in oxidation of cyclopentene to cyclopent (1.2) diol is____
Last Answer : The number of moles of Maganate ion used in oxidation of cyclopentene to cyclopent (1.2) diol is____
Description : Present rate of Senior citizens saving scheme account is____ payable quarterly. a) 10% b) 9.3% c) 8.5 % d) 9.5%
Last Answer : b) 9.3%
Description : Vitamin C richest fruit Is____? a) aonla b) barbados cherry c) lemon d) guava
Last Answer : b) barbados cherry
Description : The number of vibrational modes for CH4 molecule is____. (a) 9 (b) 10 (c) 8 (d) 7
Last Answer : (a) 9
Description : Measuring unit of capacity of hard drive is____. a) GB b) GHz c) MHz d) None of the above
Last Answer : a.
Description : According to the sliding - filament model of muscle contraction, the molecules that moves to shorten a muscle are :-
Last Answer : According to the sliding - filament model of muscle contraction, the molecules that moves to shorten ... B. Collagen C. Myosin D. Creatine phosphate
Description : Contraction of a muscle is caused by
Last Answer : Contraction of a muscle is caused by
Description : Muscle contraction is initiated by a signal sent by the _____
Last Answer : Muscle contraction is initiated by a signal sent by the _____
Description : Mechanism of muscle contraction is best explained by____
Last Answer : Mechanism of muscle contraction is best explained by____
Description : In heart cells, which of the following serves as a secondary messenger, speeding up muscle cell contraction in response to adrenaline ?
Last Answer : In heart cells, which of the following serves as a secondary messenger, speeding up muscle cell contraction in ... A. cAMP B. cGMP C. GTP D. ATP
Description : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r
Last Answer : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : ... D. If both Assertion and Reason are false.
Description : The following diagram (Figure 20, 35) describes the muscle contraction . Identify A to D
Last Answer : The following diagram (Figure 20, 35) describes the muscle contraction . Identify A to D A. ... Actin filament, C-Silding/Rotation , D-Cross bridge,
Description : Basic unit of muscle contraction is
Last Answer : Basic unit of muscle contraction is A. Actin B. Myosin C. Sarcomere D. Tropomyosin
Description : Chemical ions responsible for muscle contraction are
Last Answer : Chemical ions responsible for muscle contraction are A. `Ca^(++) and K^(+)` B. `Na^(+) and K^(+)` C. `Na^(+ ... ^(++)` D. `Ca^(++) and Mg^(++) ions `
Description : The contraction of muscle of shortest duration is seen in
Last Answer : The contraction of muscle of shortest duration is seen in A. Jaws B. Eyelids C. Heart D. Intestine
Description : According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle are
Last Answer : According to sliding filament theory of muscle contraction, the filament that move to shorten a muscle ... B. Actin C. Collagen D. Creatine phosphate
Description : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ?
Last Answer : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ? A. ... . Smooth muscle fibers D. all of these
Description : When a muscle is stretched by a contraction of the opposing muscles it is called .?
Last Answer : if you're on OdysseyWare your answer would beActive stretching.............. =)
Description : What is Involuntary muscle contraction in an artery?
Last Answer : What is the answer ?
Description : Can you control the contraction of skeletal muscle?
Last Answer : Need answer
Description : What is needed besides calcium for muscle contraction?
Description : Which of the following property of prostaglandins has been utilized by chinicians in hospital for (A) Inducing fever (B) Causing inflammation (C) Effecting smooth muscle contraction (D) Disaggregation of spermatozoa
Last Answer : Answer : C
Description : The hormone required for uterine muscle contraction for child birth is (A) Progesterone (B) Estrogen (C) Oxytocin (D) Vasopressin
Description : What are the functions of potassium? (A) In muscle contraction (B) Cell membrane function (C) Enzyme action (D) All of these
Last Answer : Answer : D
Description : The following points about microfilaments are true except (A) They form cytoskeleton with microtubules (B) They provide support and shape (C) They form intracellular conducting channels (D) They are involved in muscle cell contraction
Last Answer : C
Description : Histamine (a) May be released from mast cells by a number of therapeutic agents (b) Causes sedation (c) Decreases the force of contraction of ventricular muscle (d) Can cause strong contractions of the gravid human uterus
Last Answer : Ans: D
Description : In gastrointestinal tract, serotonin causes (a) Contraction of gastrointestinal muscles (b) Decreased muscle tone (c) Decreased peristalsis (d) All of the above
Last Answer : Ans: A
Description : What are some examples of movement created by the contraction of sarcomeres of the muscle cells ?
Last Answer : The handling of a cup of coffee, the peristaltic movements of the bowels, the cardiac beats and even a smile are examples of movement created by contraction of the sarcomeres of the muscle cells. This contraction is a type of cell movement.
Description : One of the following statements about muscular responses is not true. Choose that one (a) A muscle fibre contracts in all-or-none fashion (b) There is a slight latent period that occurs between when ... contraction (d) When a person is fully at rest, none of the muscles are contracting in the body
Last Answer : Ans:(d)
Description : Why can cardiac muscle fibres contract for longer periods than skeletal fibres? (a) Cardiac muscle is self-excitatory (b) Extracellular calcium partially controls the strength (and length) ... tubules are more developed in cardiac muscle (d) Cardiac muscle is uninucleate rather than multinucleate
Last Answer : Ans:(a)
Description : Consider the following statements: 1. Cross bridges can cause muscle contraction. 2. They are able to oscillate back and forth and hook up with active sites on actin filaments 3. The bridges enable the thin filaments to pull the thick filaments by a ... (a) 1, 2 (b) 2, 3 (c) 1, 2, 4 (d) 1, 2, 3, 4
Last Answer : Ans:(c)
Description : "Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above
Last Answer : (3) Nerve impulse Explanation: Na+/K+-ATPase (also known as sodium-potassium pump) is an enzyme located in the plasma them brane of virtually every human cell and is common to all cellular ... are voltagegated, which means that they can open and close depending on the voltage across the membrane.
Description : The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all
Last Answer : all
Description : Stimulation of the cholinergic pathway results in: a. ciliary muscle contraction b. a decrease in atrial contractility c. gall bladder contraction d. all above
Last Answer : all above
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