Unit 1

Question 1

Lower H+ than OH-

Answer 1

Acid

Question 2

Can release/donate hydrogen ion

Answer 2

Acid

Question 3

Common and strongly electronegative

Answer 3

Oxygen and nitrogen

Question 4

Single ringed nitrogenous base

Answer 4

Pyrimidine

Question 5

Highly extensible because of coiled structure

Answer 5

Alpha helix

Question 6

Tertiary structure

Answer 6

Confirmation of entire polypeptide

Question 7

Same number of electrons on outermost shell =

Answer 7

Similar properties

Question 8

Polar carboxyl group and nonpolar hydrocarbon chain

Answer 8

Amphipathic

Question 9

Building blocks of polymers

Answer 9

Monomers

Question 10

Unequal sharing of electrons

Answer 10

Polar covalent bond

Question 11

So close together they can experience weak attractive forces bonding them

Answer 11

van der Waals

Question 12

Two or more polypeptide chains

Answer 12

Quaternary

Question 13

Four macromolecules

Answer 13

Carbohydrates, lipids, proteins, and nucleic acids

Question 14

Linear sequence of amino acids

Answer 14

Primary

Question 15

Release of hydrogen ions into solution

Answer 15

Lower ph

Question 16

Lower H+ than OH-

Answer 16

Base

Question 17

First law of thermodynamics

Answer 17

Energy cannot be neither created or destroyed

Question 18

Michaelis constant Km

Answer 18

Measure of substrate concentration at exactly one half Vmax

Question 19

Organism at equilibrium

Answer 19

Dead

Question 20

Inhibitor that binds tightly to enzyme forming covalent bond with amino acid

Answer 20

Irreversible inhibitor

Question 21

Inhibitors bind to enzyme and _____ activity

Answer 21

Decrease

Question 22

Enzymes accomplish effective catalysis by

Answer 22

Overcoming activation barrier

Question 23

Steady state

Answer 23

Reactants and products remain constant

Question 24

Covalent bonds are strongly polarized in _____

Answer 24

Water

Question 25

Weak attraction btw adjacent water molecules

Answer 25

Hydrogen bonds

Question 26

Polar molecules are

Answer 26

Hydrophilic

Question 27

Non polar molecules are

Answer 27

Hydrophobic

Question 28

A sodium ion

Answer 28

Lost an electron

Question 29

Greatest potential to form ionic bonds

Answer 29

Polar charged

Question 30

Greatest potential to form hydrophobic interactions

Answer 30

Nonpolar

Question 31

pH decrease and H+ increase

Answer 31

Acidic

Question 32

Having both hydrophobic and hydrophilic regions

Answer 32

Amphipathic

Question 33

Saturated fatty acids lack

Answer 33

Double bonds

Question 34

Pyrimidines

Answer 34

Uracil, cytosine, and thymine

Question 35

Prevent growing proteins from making random nonnegative interactions

Answer 35

Chaperones

Question 36

Second law of thermodynamics

Answer 36

High energy to low and randomness increases with energy transfer

Question 37

Entropy

Answer 37

Randomness increase with energy transfer

Question 38

Protein catalysts

Answer 38

Lower the energy of activation