name the 4 main elements that make up 95% of an organism - Answers carbon, nitrogen, oxygen,
hydrogen
name the 4 types of bonds carbon can form - Answers single, double, triple and quadruple bonds
what are macromolecules - Answers large, organic molecules
name the 4 classes of macromolecules - Answers carbohydrates, lipids, nucleic acids, proteins
give 2 examples of nucleic acids - Answers DNA & RNA
what elements make up carbohydrates & lipids (symbol) ? - Answers (CHO) carbon, hydrogen, oxygen
name 3 elements your body needs trace amounts of for proper functioning - Answers calcium,
potassium, and sulfur
macromolecules are also known as ______ - Answers polymers
if all the macromolecules are made mainly of the elements CHO, how are they different? - Answers they
are different in the ratios of the elements
name 2 ways your body uses carbohydrates - Answers for energy and structural support
what are the subunits called that make up carbohydrates? - Answers monosaccharides
what is the ratio of C, H, and O in monosaccharides? - Answers 1:2:1
name 3 monosaccharides - Answers glucose, galactose, and fructose
monosaccharides are ______ sugars - Answers simple
what are disaccharides & give an example? - Answers double sugars, sucrose
long chains of sugar are ______ - Answers polysaccharides
name three polysaccharides. - Answers cellulose, chitin, and glycogen
what subunits make up proteins? - Answers amino acids
proteins also act as _____ in cells to control reactions - Answers enzymes
name the 2 functional groups in amino acids - Answers the carboxyl and amino group
cells have ______ of enzymes to act as biological ______ - Answers thousands, catalysts
enzymes have an attachment site called the _____ site for the _____ to join - Answers active, substrate