Terms in this set (30)
Charged particle formed when an atom loses or gains electrons, so that the atom does not have an equal number of protons or electrons.
Measure of the relative abilities of atoms to attract electrons.
Non-polar Covalent Bond
Chemical bond in which electrons are shared equally between two bonded atoms, such as carbohydrates and proteins.
Polar Covalent Bond
Chemical bond in which electrons are shared unequally between two bonded atoms with different electronegativities.
Molecule that has an unequal distribution of charge and net dipole, as a result of the polar bond within the molecule and the shape of the molecule.
Weak attractions between polar molecules that contain hydrogen atoms bonded to the more electronegative atoms oxygen, nitrogen, or fluorine.
"water-loving"; describes molecules that interact with water.
"water-hating"; describes molecules that do not interact with water.
Term generally used to describe substances made up of carbon-based molecules, such as carbohydrates and proteins.
Term generally used to describe substances that do not cantain carbon, such as water and sodium chloride.
Large molecules that are often made of distinct smaller units.
Small repeating units that join together to make up polymers.
Large molecules made of many repeating smaller molecules called monomers.
The sticking together of particles of the same substance
The sticking together of particles of different substances
What are the four main types of biological macromolecules
Proteins (PRO), Carbohydrates (CHO), lipid, and nucleic acid.
What type of bond links together smaller molecules to make macromolecules?
What are the five properties of water?
Surface tension/cohesion, adhesion, solvent, solid water floats, and heat capacity.
What is the significance of surface tension/cohesion?
Cohesion is significant in the movement in water, if the water was not bonded together it would not flow. Also, cohesion and adhesion together make it possible to defy gravity.
What is the significance of adhesion?
Adhesion is significant because it allows water to move against gravity, especially in the xylem of plants.
Why is it significant that water is a universal solvent?
It is significant that water is a solvent because it is capable of breaking down ionic bonds as well as hydrogen bonds.
What is the significance of solid water floating?
Solid water floating keeps the water level stable. Water is the only substance that is denser in the liquid state than the solid state.
What is the significance of heat capacity?
Water holds heat well which helps to moderate temperatures.
Polar, found in carbohydrates, lipids, proteins, and nucleic acids.
- C -
Found in Carbohydrates and Nucleic acids
Found in proteins and lipids
-Found in nucleic acids
Found in proteins
Found in proteins and nucleic acids
Name for chemical reactions in a cell
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