Answer:
<u>Once the myosin-binding sites are exposed, and if sufficient ATP is present, myosin binds to actin to begin cross-bridge cycling. Then the sarcomere shortens and the muscle contracts. In the absence of calcium, this binding does not occur, so the presence of free calcium is an important regulator of muscle contraction.</u>
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Answer:
Exposition is a text that elaborates the writer‘s idea about the phenomenon surrounding. Its social function is to persuade the reader that the idea is important matter.
Explanation:
Answer:
<u>C. Broca's Area</u>
Explanation:
Broca’s area is located in the front part of the left hemisphere of your brain. It has an important role in turning your ideas and thoughts into actual spoken words. Broca’s area is the most active Source right before you speak.
Broca’s area also helps to pass the information to another part of your brain called the motor cortex, which controls the movements of your mouth. It’s named after a French doctor, Pierre Paul Broca, who discovered the region of the brain in 1861.
<u>Hope this helps!</u>
<em>Answer: Mitochondria are found in all body cells, with the exception of a few. There are usually multiple mitochondria found in one cell, depending upon the function of that type of cell. Mitochondria are located in the cytoplasm of cells along with other organelles of the cell.</em>
