Biology #2 Molecular bio WATER

  • Created by: MBid89
  • Created on: 17-03-18 13:29
What is the structure of a water molecule?
2 H+ ions and 1 O- ion (POLAR)
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What bonds can you find in water?
Covalent bonds between H+ and O- ions Hydrogen (intermolecular) bonds between water molecules
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What are the properties of water?
Good solvent, cohesive (molecules stick together), adhesive (molecules stick to other surfaces), good thermal qualities (hydrogen bonds cause water to resist change)
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Give 2 examples of ways in which the properties of water benefit organisms
1. Cohesive forces: pulling forces **** water up xylem against gravity 2. Adhesive forces: water drawn out of leaf, keeps cell walls moist to increase gas exchange. 3. Thermal: water is liquid in most places on earth, suitable for living organisms. S
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What is a hydrolysis reaction?
The splitting of large molecules, using up water in the process.
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Other cards in this set

Card 2

Front

What bonds can you find in water?

Back

Covalent bonds between H+ and O- ions Hydrogen (intermolecular) bonds between water molecules

Card 3

Front

What are the properties of water?

Back

Preview of the front of card 3

Card 4

Front

Give 2 examples of ways in which the properties of water benefit organisms

Back

Preview of the front of card 4

Card 5

Front

What is a hydrolysis reaction?

Back

Preview of the front of card 5

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