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What molecule does hydrolysis of ATP return the myosin molicule to?
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What is atrial depolarization?
Atrial depolarization is the first part of the cardiac cycle.Cardiac (and skeletal) muscle is made up of bundled stands of functional units called sarcomeres. Each sarcomere consists of two Z-disks, which mark the ends of each sarcomere, and alternating dark and light bands called A-bands and I-bands respectively. The I-band contains only actin (the main cytoskeletal protein in most cells) filaments whereas the A-band contains overlapping myosin (a "molecular motor" protein) and actin filaments in its periphery and only myosin filaments in the central region called the H-zone. The center of the H-zone is marked by an imaginary line (called the M-line) in which myosin extends in both directions. The sarcomere contracts inward toward the M-line. "Depolarization" occurs when an electrochemical event causes calcium cations to be released from a membranous network (similar to the the endoplasmic reticulum) called the sarcoplasmic reticulum and creates an action potential. The free Ca2+ binds to a specific troponin protein shifting a troponin/tropomyosin protein complex allowing the myosin head groups to bind to the actin filament. ATP hydrolysis causes conformational changes of the myosin filament which in effect "pulls" the actin filament toward the M-line of the sarcomere. The sarcomere can return to its resting potential by allowing potassium (K+) ions to flow out.
Before two strands of a DNA molecule can separate the bonds between the must be broken. a. phosphates c. ribose molecules b. base pairs d. alleles?
L Before two strands of a DNA molecule can separate, the bonds between the a. phosphates ribose molecules b. base pairs alleles Please select the best answer from the choices provided C D C. d. Mark this and return Next must be broken.
Which comet will return the soonest?
Halley'scomet. It will return in 2061
Do detritivores return energy to an ecosystem?
They only return the minerals to the ecosystem.
When was The Tides Return Forever created?
The Tides Return Forever was created in 1994.
What happens when muscles relax?
Relaxation occurs when stimulation of the nerve stops. Calcium is then pumped back into the sarcoplasmic reticulum breaking the link between actin and myosin. Actin and myosin return to their unbound state causing the muscle to relax.
What happens when our muscles relax?
Relaxation occurs when stimulation of the nerve stops. Calcium is then pumped back into the sarcoplasmic reticulum breaking the link between actin and myosin. Actin and myosin return to their unbound state causing the muscle to relax.
How does removal of the calcium ions affect the filaments?
Troponin complex will return to its normal configuration and cover the actin binding site on tropomyosin thus preventing further interaction between the actin and myosin filaments, and contraction ends.
What is atrial depolarization?
Atrial depolarization is the first part of the cardiac cycle.Cardiac (and skeletal) muscle is made up of bundled stands of functional units called sarcomeres. Each sarcomere consists of two Z-disks, which mark the ends of each sarcomere, and alternating dark and light bands called A-bands and I-bands respectively. The I-band contains only actin (the main cytoskeletal protein in most cells) filaments whereas the A-band contains overlapping myosin (a "molecular motor" protein) and actin filaments in its periphery and only myosin filaments in the central region called the H-zone. The center of the H-zone is marked by an imaginary line (called the M-line) in which myosin extends in both directions. The sarcomere contracts inward toward the M-line. "Depolarization" occurs when an electrochemical event causes calcium cations to be released from a membranous network (similar to the the endoplasmic reticulum) called the sarcoplasmic reticulum and creates an action potential. The free Ca2+ binds to a specific troponin protein shifting a troponin/tropomyosin protein complex allowing the myosin head groups to bind to the actin filament. ATP hydrolysis causes conformational changes of the myosin filament which in effect "pulls" the actin filament toward the M-line of the sarcomere. The sarcomere can return to its resting potential by allowing potassium (K+) ions to flow out.
What is the correct order of steps in muscle contraction?
first nerve impulse comes to neuromuscular joint then neurotransmitter acetylcoline release to synaptic cleft and depolarize the muscular joint then ca released from sarcoplasmic reticulum and make the tropomyosin to remove from binding place with myosin then myosin pull the actin and they overlap on each other h band disappear but a band remines untact howerver i bands become shorter,after removing the nerve impulse the ca pumped back to sarcoplasmic reteculum and the lenght of muscle return to same position
What does hemoglobin do after it leaves the cells and returns to lungs?
The carbon dioxide is released as the other parts of the hemoglobin molecule pick up more oxygen for a return trip to the cells.
What Movie titles have the word 'return' in it?
A lot of sequels use the word "return": Return of the Jedi, The Lord of the Rings: The Return of the King, The Return of the Living Dead, Return to Oz, Cocoon: The Return, Batman Returns, Return of the Seven, Return to the Blue Lagoon, Return to Witch Mountain. Here are a few non-sequels: Return to Me, Return to Paradise, Return of the Secaucus Seven, Point of No Return, River of No Return.
What movies have the word returns in the title?
A lot of sequels use the word "return": Return of the Jedi, The Lord of the Rings: The Return of the King, The Return of the Living Dead, Return to Oz, Cocoon: The Return, Batman Returns, Return of the Seven, Return to the Blue Lagoon, Return to Witch Mountain. Here are a few non-sequels: Return to Me, Return to Paradise, Return of the Secaucus Seven, Point of No Return, River of No Return.
What are the examples of return c language?
return; return -1; return NULL;
What Movies have the word return in the title?
A lot of sequels use the word "return": Return of the Jedi, The Lord of the Rings: The Return of the King, The Return of the Living Dead, Return to Oz, Cocoon: The Return, Batman Returns, Return of the Seven, Return to the Blue Lagoon, Return to Witch Mountain. Here are a few non-sequels: Return to Me, Return to Paradise, Return of the Secaucus Seven, Point of No Return, River of No Return.
What is the meaning of preliminary return?
what is the meaning of "field return"?
What is the homophone for return?
The homophone for "return" is "re-turn," which sounds the same but is spelled differently and has a different meaning.
