unit 1 exam Flashcards
1
Q
what is a covalent bond?
A
sharing of electrons
polar- uneven: partial charge
nonpolar- even
2
Q
what is ionic bonding?
A
transfer of electrons
-forms salt
3
Q
what is hydrogen bonding?
A
occurs between hydrogen and electronegative atom
most common in water, also in DNA
4
Q
how are polymers formed?
A
dehydration synthesis
5
Q
how are polymers broken apart?
A
hydrolysis
6
Q
groups of carbs?
A
monosaccharides
disaccharides
polysaccharides
7
Q
what do carbs do in the body?
A
stores and supplies energy
8
Q
what are the different levels of protein structures?
A
primary
secondary
tertiary
quaternary
