Section 15 Flashcards

Water and phosphorus cycle. ch. 46.6, 46.10 (9 cards)

1
Q

What are the 5 reservoirs of the hydrologic (water) cycle? What is the form of water in each reservoirs?

A

Atmosphere H2O(g)
Ice caps and glaciers H2O(s)
Bodies of freshwater H2O(aq)
Ground water H2O(aq)
Oceans H2O(aq)

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2
Q

Draw the hydrologic cycle

A
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3
Q

What are the 3 largest water reservoirs in order?

A

Ocean (salted water)
Polar ice caps, glaciers (fresh water)
Ground water (fresh water)

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4
Q

Why is sunlight important for the functionning of the hydrologic cycle?

A

Provides energy driving movement of water from te ocean and bodies of fresh water to the atmosphere as water vapour. Or provides the energy required for sublimation of ice into water vapour.

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5
Q

What is the difference between ground water, soil water and aquifers?

A

Ground water: reservoir with all water soaked in the soil.
Soil water: ground water trapped between soil particles.
Aquifers: deep underground water that has droined into the soil collected in sand or porous rock that are water permeable.

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6
Q

What are the 5 reservoirs of the phosphorus cycle? What form does the phosphorus take in each reservoirs?

A

Rocks on land: components of minerals (ex: apatite)
Freshwater (ground water, lakes, etc.): PO4^3- (aq)
Communities: organic molecules
Sea water: PO4^3- (aq)
Marine sediments: components of minerals (various)

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7
Q

What type of cycle is the phosphorus cycle? Where can we find most of the phosphorus?

A

It’s a sedimentary cycle
Rocks and water are a significant reservoir of phosphorus.

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8
Q

Why is phosphorus important for communities?

A
  • Essential component of organic molecules required by living things
  • phosphate in ATP, nucleotides of DNA and RNA
  • In phospholipids making up the lipid bilayer of cellular membrane
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9
Q

Draw the diagram of the phosphorus cycle.

A
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