Answer:
Hydrogen ion
Explanation:
The proton gradient created by the electron transport chain provides a H+ to power ATP synthase.
Answer:
Un organismo unicelular es aquel que está constituido por una sola célula en contraposición con los organismos pluricelulares constituidos por varias células. ... La mayoría de organismos unicelulares son procariotas, como las bacterias, pero existen algunos organismos unicelulares eucariotas, como los protozoos.
Explanation:
Answer:
number 1: heat from the sun or solar energy
Cell division is the process essential for growth and repair in multi-cellular organisms.
Injury to the tissue can activate surrounding cells to undergo cell division with the help of mitogens. Mitogens are the chemical substances which help in escalating mitotic divisions in the cells.
They act by activating the signal-transduction pathway which involve mitogen-activated protein kinase (MAPK).
Other possible manner could be the loss of density which could lead to the inactivation of contact inhibition. As there is a loss of cells during the injury, it makes an empty space which could also trigger or activate surrounding cell to start cell division.
In addition, at injury site the flow of blood also increases to transport various nutrients, clotting factors, growth factors etc. These increased nutrition and growth factors also speed up the process of mitosis.