How do specific cell structures and organelles contribute to maintaining homeostasis in the cell?

Homeostasis is a self-regulatory process by which cell maintains its internal environment constant. Plasma membrane plays significant role in in maintaining the homeostasis due to its semi-permeable nature. Cell membrane or plasma membrane is a phospholipid bilayer, it only allows small and non-polar molecules to pass through it. It prevents polar ions or molecules to pass through it. Thus it controls movement of molecules and maintaining the constant internal environment.  

explanation:

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.