ATP stands for Adenosine TriphosPhate. It is a molecule, responsible for <span>many essential roles in the </span>cell - energy transfer from and into the cell.
<span>If we have two cells A and B and Cell A have less circles in the cell, while cell B has more circles outside the cell, then: </span><span>
ATP is being used to move the molecules out of the cell by cell A , only. </span>
Answer:
Amino acids are the building blocks of proteins. protein is a chain of amino acids connected together
Answer:
The Liver
Explanation:
The largest organ in the abdominal cavity is by far the liver, just below the diaphragm (the flap of muscle separating the abdominal from the thoracic cavity). Notice the umbilical vein connecting the umbilical cord with the liver
Answer:
d. the movement of myosin head while attached to actin myofilament
Explanation:
During muscle contraction, the calcium ions released from the sarcoplasmic reticulum in the sarcoplasm bind to troponin which in turn removes tropomyosin from the myosin-binding sites present on the actin. Hydrolysis of ATP at the myosin heads energize them. These myosin heads with stored energy bind to the myosin-binding sites on the actin filaments. In their bound conditions on the actin filaments, myosin heads are called cross bridges. Only one myosin head of a single myosin molecule forms cross-bridge at a time.
