Properties of Water
Is water polar or nonpolar?
Polar!
Reason why Ice being less dense helps sustain life
Prevents bodies of water from freezing over, allowing life to exist under the surface when it freezes
A type of Bond that exists when 2 atoms share electrons
Covalent Bond
The sticking together of different kinds of substances
Adhesion
What kind of molecules need to be present in order for a hydrogen bond to form
Polar molecules
The formation of a larger Macromolecule through the removal of water (This creates a covalent bond)
Dehydration
Name at least 3 properties of water
Surface Tension, Cohesion, Adhesion, Density, Specific Heat Capacity, Capillary Action, Heat of Vaporization, Solubility (Universal Solvent), Temperature Moderation
A type of bond that exists between the positive partial charge of a hydrogen atom and the partial negative charge of another atom.
Hydrogen Bond
the sticking together of particles of the same substance. Like a water molecule and another water molecule
Cohesion
What 2 elements are present in all known life?
Carbon and Hydrogen
The addition of a water molecule that breaks the covalent bond of a Macromolecule
Hydrolysis
How do plants bring water into their roots?
Combination of Cohesion and Adhesion to get the water into the plant, then evaporation through the stoma of plants allows for the continual movement of water up the plant
The type of bond that exists when one atom steals or rips away the electrons from another atom
Ionic Bond
A group of atoms bonded together
Molecules
What are the Elements that exist in each of the Macromolecules?
CHO (Carbs), CHO (Lipids), CHON (Proteins), CHONP (Nucleic Acids)
This property of Water allows the surface to deform while not breaking at the surface
Surface Tension or Hydrogen Bonds
How does water being able to moderate temperature help species and environments survive?
Reduces Temperature extremes and fluctuations, allowing species that are more sensitive to exist
Prevents denaturing of necessary proteins like enzymes
The type of bond that affects cohesion in water molecules
Hydrogen Bonding
Molecules of the same chemical formula, but having a different chemical make up and properties
Isomer
We store excess energy from the molecules we eat as...
Lipids (Fats)
Why does water expand when it is frozen?
The Hydrogen bonds prevent water molecules from being pulled closer together, and they form a crystalline structure that is less dense than liquid water.
What does water do in regards to the metabolic functions (chemical processes) of cells?
Breaks down Macromolecules for energy release
Helps to Maintain Homeostasis (Temperature, Acts as a pH buffer)
Acts as a conduit for waste Disposal
The type of bond that exists within a Water Molecule
Covalent
What are the 4 macromolecules?
Carbohydrates, Lipids, Proteins, Nucleic Acids
What is the Name of Mr. Ayala's Dog?
Madeline