Atoms
what are the three subatomic particles?
Protons, Neutrons, Electrons
what is the charge of a proton?
+1
what creates a non-polar covalent bond?
two atoms share an electron
what are the four main types of biomolecules?
carbohydrates, proteins, lipids, nucleic acid
what are four types of reagents?
Lugol's, Benedict's, Biuret's, Sudan III
what determines the atomic number?
protons
what is the charge of a neutron?
0
what creates a covalent bond?
two atoms share a pair of electrons between them
what does carbohydrates consist of?
carbon, hydrogen, and oxygen atoms
what color does Lugol's change when mixed with starch?
Blue
what is the number of protons in an atom called?
atomic number
what is the charge of an element?
-1
what creates an ionic bond?
one atom transfers an electron to another atom
what do proteins consist of?
amino acids
what color does Benedict's change when mixed with sugar?
Red
Where are the protons and Neutrons located within the atom?
nucleus
what is the charge of 4 protons and 15 electrons?
-11
what creates a hydrogen bond?
A hydrogen atom bonded to a highly electronegative atom, attracted to a lone pair
what do lipids consist of?
carbon, hydrogen atoms, sometimes oxygen
what color does Biuret's change when mixed with protons?
Purple
what is the smallest unit of matter?
atoms
what is the charge of 23 protons and 17 electrons?
+6
what creates a polar covalent bond?
Atoms with different electronegativities sharing an electron
what is the biomolecule of DNA called?
Nucleic acid
what color does Sudan III change when mixed with lipids?
Red