Biochemistry/water Flashcards
What is a covalent bond?
When electrons are shared
Why is water considered a great solvent?
Polarity
What is an example of a covalent bond?
Water
What is an ionic bond?
When electrons are given or taken.
What is an example of an ionic bond?
Salt
What is a hydrogen bond?
A weak attraction between a hydrogen atom and a Florine, Nitrogen, or Oxygen atom.
Draw a hydrogen bond.
Draw a hydrogen bond.
What is polarity?
When something has two opposite poles.
What is a mixture?
Combination of two or more substances
What is a colloid?
When particles don’t settle out.
In soda what is the solute and the solvent?
Solute is syrup.
Solvent is carbonated water.
What is activation energy?
The energy that starts a reaction.
What is a catalyst?
Speeds up a chemical reaction.
What is an enzyme?
A biological catalyst.
pH is the measure of what substance in a solution?
H+
On pH scale which numbers represent an acid?
0-6.9
What are the three unique property’s of water and what makes it unique?
1-universal solvent/it dissolves everything.
2-cohesion/surface tension
3-adhesion/capillary action
Carbohydrates
(Monosaccharides)
~stores energy
~provides structural support
Lipids
(Cholesterol, fatty acids, oils)
~stores energy
~provides barriers
Necleic acid
(Nucleotide)
~stores and communicates genetic information.
Proteins
(Amino acids) ~transport substances ~speed reactions ~provides structural support ~make hormones
