Flashcards in CH. 2 Deck (17)
Anything that occupies space and has mass
A substance made up of atoms
Same # of protons, different # of neutrons.
A solution that resists changes in pH
Basic building blocks found in cells: Carbohydrates, Nucleic acids, Proteins, and Lipids = Macromolecules
The very basic building block for polymers
Macromolecules composed of repeating units of smaller monomers.
Hydrocarbons that form multi-ring structures. Types include: Cholesterol, steroid hormones, and bile salts
Long molecules of DNA that are made up of genes that store information needed to make one specific protein.
stores information needed to make one specific protein
Adenosine Tri Phosphate: Energy currency of cells. (Breaking the high energy bonds b/w the phosphate groups provides energy for cellular activities)
Four most common elements in the human body:
What is created if you add or subtract electrons from an atom?
An ion; cation = (+) or anion (-) charge
Name the four types of biological macromolecules and give an example of each.
1. Carbohydrates: Sugars
2. Nucleic acids: DNA and RNA
3. Proteins: Enzymes, structural molecules
4. Lipids: Fats, oils, phospholipids, steroids