Being able to accept yourself for who you are is very important and to understand that nobody is perfect
Answer:
The correct answer is: D) the pivoting of the myosin head, which causes actin and myosin to slide relative to each other.
Explanation:
<u>Muscle contraction</u><u> occurs when the sarcomere is shortened.</u> The sarcomere is a structure composed of filaments: the thick ones are composed of myosin, and the thin ones are composed of actin. These two proteins interact with one another to make the sarcomere shorten and produce the contraction of the muscle.
Muscle, in its natural state, is not contracted. This is because <u>the binding sites on actin for the myosin heads are covered</u> by the proteins troponin and tropomyosin.
When the signal for muscle contraction arrives at the muscle, calcium ions are released from the sarcoplasmic reticulum and reach the sarcomere to reconfigure the complex formed by troponin and tropomyosin so <u>the binding site on the actin filament becomes exposed and the myosin head can attach to it.</u>
When an ATP molecule appears and binds to the myosin head, the latter separates from the actin-binding site and moves toward the next actin-binding site with the energy provided by the hydrolysis of this ATP molecule. This is what is called power stroke.
This keeps on happening until muscle contraction is no longer needed and calcium ions are reabsorbed, which will make troponin and tropomyosin cover the actin-binding sites once again.
Its either a or c but I'm going towards a
answer:
with lower crop yields without gmo traits, commodity prices rise. corn prices would increase as much as 28 percent and soybeans as much as 22 percent. consumers could expect food prices to rise 1-2 percent or $14 billion to $24 billion per year.
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Yes Exothermic and Endothermic are related to the favor of product and reactants.
In Exothermic reactions heat is released because of the formation of bonds. It means Exothermic reactions favor the product and vice versa.