BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ability to hold a lot of heat
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ability to form hydrogen bonds
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less dense when frozen
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colourless and odourless
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Detailed explanation-1: -Water striders are able to walk on top of water due to a combination of several factors. Water striders use the high surface tension of water and long, hydrophobic legs to help them stay above water. Water striders use this surface tension to their advantage through their highly adapted legs and distributed weight.
Detailed explanation-2: -Water striders are small insects that are adapted for life on top of still water, using surface tension to their advantage so they can “walk on water.” Water acts different at the surface. Water molecules are attracted to each other and like to stay together, especially on the surface where there is only air above.
Detailed explanation-3: -Insects can walk on water because of a phenomenon called surface tension. This is essentially a property of water (or any liquid) which allows it to resist an external force.
Detailed explanation-4: -The reason why pond skaters can stay afloat is that the surface tension of water acts like a skin. Water molecules have cohesive forces between them, and the pond skater’s weight is too small to overcome those forces. Hence, pond skaters stay afloat on water.