The myosin head separates from actin as a result of ATP binding. The intrinsic ATPase activity of myosin then transforms ATP into ADP and Pi. The myosin head's angle is altered into a cocked state by the energy generated during ATP hydrolysis. The myosin head is now ready to move in the future.
The myosin protein is in a high-energy conformation when the head is cocked. At the end of the power stroke, the myosin head is in a low-energy position because this energy has been used up during the power stroke. ADP is released following the power stroke, but the cross-bridge is still there and actin and myosin are joined together.
Since ATP is readily available, the cross-bridge cycle can repeat, and muscular contraction can go on as long as ATP is there.
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Answer:
genes involved in the cell cycle following a mutation become oncogenes.
Answer:
A bacteriophage is a type of virus that attacks bacteria. In the lytic cycle, the virus hijacks the cell machinery of the bacterium that it has infected. In the lysogenic cycle, the viral DNA is incorporated into the bacterial DNA.
Explanation:
Its a type of virus.
The composition of a star is abundant in hydrogen and helium, both of which are two of the lightest elements. Because they are very light, they are usually unstable. To becomes stable, hydrogen atoms spontaneously combine with each other through a radiation process called nuclear fusion, to yield helium atoms. This process requires very high energy in the form of heat. Therefore, these lighter elements are burned in order to keep the star alive with energy.
Therefore, the answer is D.
On about December 21 the <u>Southern</u> hemisphere is tilted directly towards the sun
Explanation:
On December 21st, the Southern Hemisphere is tilted towards the Sun receiving the most direct sunlight of the year during the longest day. The Northern Hemisphere is having its winter solistice, tipped away from the Sun, producing the shortest day of the year and a low Sun angle.
