How does atp transfer energy from exergonic to endergonic reactions in the cell?

Adenosine triphosphate(ATP) transfer energy by doing phosphorylation. ATP has three phosphate molecule and it will release one phosphate when releasing energy(exergonic reaction), become ADP + P. ADP could be reused by catching energy(endergonic reaction), makes them catch a phosphate molecule and reform into ATP.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.