Which of the following is dependent on the ability of water molecules to form hy

Question

Which of the following is dependent on the ability of water molecules to form hydrogen bonds with other molecules besides water? A) the ability certain insects to walk on the surface of water B) the universality of water as a solvent C) the evaporative cooling of skin surfaces D) the milder temperatures of coastal regions compared to inland areas Many names for sugars end in the suffix A) -acid. B) -hyde C) -ase. D) -ose. As cell size increases, the A) ratio of surface area to volume stays the same. B) volume increases proportionally more than the surface area. C) surface area increases proportionally more than the volume. D) volume and surface area decrease.

Explanation / Answer

44. The correct option is (B) the universality of water as a solvent
The ability of water molecules to form hydrogen bonds with other molecules is the basis for the dissolution of the compounds in water.

45. The correct option is (D) -ose
glucose, sucrose, fructose, galactose, lactose, mannose

46. The correct option is (D) volume and surface area decrease
The size of all the cells should be small. Consider the area and volume of a typical cell. Not all cells are spherical in shape, but most tend to approximate a sphere. The formula to calculate the surface area of a sphere is 4r2, and 4r3/3 is formula for the volume of sphere. When the radius of a cell increases, its surface area increases as the square of its radius, but its volume increases as the cube of its radius. That's why when the size of the cell is increase, its surface area-to-volume ratio decreases

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