EnergyMetabolism/NutrientAndEnergy/ChemicalEnergyOfNutrient

To obtain energy, cells take in nurtrients from outside. There is a large amount of energy in the nutrient. The energy is chemical energy, shown in red lines, which connect the atoms, such as carbon (C), hydrogen (H) , and oxygen (O) in the nutrient into one molecule. When a nutrient enters a cell, shown in green arrow, chemical energy of nutirient also enter the cell, as shown in red arrow.

Please be noted that the nutrients shown above, are not carbohydrate nor lipid. This is a fictional nutrient, which has many carbon, hydrogen, oxygen atoms and can be equally divided into two.

Challenge Quiz

1.

For muscle cells to contract, it is neccesary for the nutrient to be kept outside of the muscle cell to enter inside the cell from outisde of the muscle cell  正解!.

2.

栄養素の 原子の中にある 原子をひとつの分子に結合させている  正解!化学的エネルギーが筋収縮などに使われている。

3.

栄養素の 化学的 電気的  正解!エネルギーが筋収縮に必要である。