Chapter 2: Chemical basis of life Flashcards
In NaCa sodium and chlorine are bonded together by a…
ionic
the basic building blocks of DNA and RNA
nucleotides
ionic bond involves…
transfer of electrons
monomer
basic subunit of life found in many biological molecules
polymer
when monomers are joined together to form long chains
polar molecules
share electrons unequally
covalent bond
share electrons
phosphate, pentose sugar and nitrogen make up…
nucleotides
functional group
a combination of bonded atoms attached to a carbon skeleton which always reacts in the same way
most macromolecules are made up of…
monomers linked to polymers
peptide bond
covalent bond between two amino acids
valance
number of electrons in the outer shell
compound
a molecule that contains atoms of more than one element
4 types of organic molecules
carbs
lipids
proteins
nucleic acid
