Items 1, 19, 21, 28, 55 (Water-Algae)

1. Water is a polar molecule. You can see water in my really dirty pool. Polar compounds have an uneven distribution of charge. In water, the oxygen atom has a negative charge and the two hydrogen atoms have a positive charge.


19. My pool water would be hypotonic to the plant cell because it has a lower concentration of solute molecules. The water would diffuse into the plant cell through osmosis.


21. Chlorophyta is a plant like protist. The common name for this is green algae. You can see green algae in my very dirty pool. Chlorophyta is unicellular, colonial, multicellular, it contain chlorophylls, and chloroplast similar to those in plants. It is a volvox.

28. My pool water is a hypotonic solution. Well maybe not as much as it was once... I assume though that if I were to put in a carrot in this water, the carrot would absorb water and become more crisp because the water has a lower concentration of molecule. The water would diffuse into the carrot through osmosis.

55. Water has high specific heat and surface tension. High specific heat is important to living things because it absorbs or release large amounts of energy with only slightly changing the temperature of the water. Therefore on hot days, water absorbs heat energy, cooling down the air. Then at night, it releases the energy and increases the temperature of the air. This way the oceans stabilize the temperatures of the world so life can exist.