Flashcards in 2: The Chemistry of Life Deck (26):
Trace elements are _____.
elements that are required by organisms in very small quantities
Isotopes differ in the number of ________.
Non polar covalent;
Electrons shared equally between atoms
Electrons shared unequally in _____________ bond
High surface tension in thin vessels
_________ bonds are WEAK bonds
Carbohydrates contain ___, ___ and ___ in a _:_:_ ratio.
Carbon; hydrogen; oxygen; 1; 2; 1
The two most common monosaccharide sugars are _____ and _____.
glucose and fructose
Glucose and fructose are easy to spot if you notice their ______.
Bond between carbohydrates:
Process of forming glycosidic bonds and losing a water molecule
Dehydration synthesis / condensation
Breaking up disaccharides and forming two monosaccharides with the addition of an H2O molecule
Starch, cellulose and glycogen are the most common _______.
Building blocks of proteins are called ______.
Amino acids are made of an amino group (____), a carboxyl group (-COOH), a hydrogen, and an R group.
Amino acids are made of an amino group (-NH2), a carboxyl group (____), a hydrogen, and an R group.
Amino acids are made of an amino group (-NH2), a carboxyl group (-COOH), a ______, and an R group.
Amino acids are made of an amino group (-NH2), a carboxyl group (-COOH), a hydrogen, and an _________.
The r group is also called a ___________.
Bond between amino acids (proteins):
Examples of lipids:
Fats, oils, phospholipids, steroids
Triglyceride is another word for
A typical fat consists of __________ and ____________.
three fatty acids; one molecule of glycerol
The linkage formed between the glycerol molecule and the fatty acids are called _______.
A fatty acid can be _______, which means it has a single covalent bond between each pair of carbon atoms