LECTURE TWO

Question 1

ELECTRONEGATIVITY

Answer 1

a measure of the tendency of an atom to attract a shared pair of electrons. an electronegative atom really “likes” electrons!

Question 2

non covalent bonds are

Answer 2

weaker than covalent bonds

Question 3

covalent bonds most important in biology

Answer 3

C-C and C-H

Question 4

linear sequences of macromolecules are joined together with

Answer 4

covalent bonds

Question 5

a covalent bond

Answer 5

Covalent Bond: a bond in which a pair or pairs of electrons is shared by two atoms.

Question 6

intramolecular bonds

Answer 6

Intramolecular bonds are the bonds that hold atoms to atoms and make compounds. There are 3 types of intramolecular bonds: covalent, ionic, and metallic..

Intramolecular forces are stronger than intermolecular forces, because the attractions that hold compounds together are stronger than the attractions between molecules.

Question 7

intermolecular bonds

Answer 7

Intermolecular forces are forces that exist between molecules. when molecules interact together

Question 8

non-covalent bonds

Answer 8

Noncovalent bonds determine the shape of many large biological molecules and stabilize complexes composed of two or more different molecules. There are four main types of noncovalent bonds in biological systems: hydrogen bonds, ionic bonds, van der Waals interactions, and hydrophobic bonds.

Question 9

charge charge interactions are also called

Answer 9

also called ionic bonds or salt bridges

Question 10

two molecules together give a

Answer 10

positive charge