Protein

Question 1

____ proteins accelerate chemical reactions

Answer 1

Enzymatic

Example: Digestive enzymes catalyze the hydrolysis of bonds in food

Question 2

____ proteins protect against disease

Answer 2

Defensive

Example: Antibodies inactivate and help destroy viruses and bacteria.

Question 3

____ proteins store amino acids

Answer 3

Storage

Example: The protein in milk

Question 4

____ proteins transport substances

Answer 4

Transport

Example: Transporting substances across the cell membrane

Question 5

____ proteins coordinate an organism’s activities

Answer 5

Hormonal

Example: Insulin

Question 6

____ proteins allow a cell to respond to chemical stimuli

Answer 6

Receptor

Example: Nerve cells

Question 7

____ proteins allow for movement

Answer 7

Motor

Example: proteins that make flagella

Question 8

____ proteins act as support

Answer 8

Structural

Example: Keratin

Question 9

How many different amino acids are involved in the creation of proteins?

Answer 9

Twenty

Question 10

Unbranched polymers built from these amino acids

Answer 10

Polypeptides

Question 11

A biologically functional molecule that consists of one or more polypeptides

Answer 11

Protein

Question 12

Organic molecules with amino and carboxyl groups

Answer 12

Amino Acids

Question 13

Which group is Glycine in?

Answer 13

Nonpolar side chains

Hydrophobic

Question 14

Which group is Alanine in?

Answer 14

Nonpolar side chains

Hydrophobic

Question 15

Which group is Valine in?

Answer 15

Nonpolar side chains

Hydrophobic

Question 16

Which group is Leucine in?

Answer 16

Nonpolar side chains

Hydrophobic

Question 17

Which group is Isoleucine in?

Answer 17

Nonpolar side chains

Hydrophobic

Question 18

Which group is Methionine in?

Answer 18

Nonpolar side chains

Hydrophobic

Question 19

Which group is Phenylalanine in?

Answer 19

Nonpolar side chains

Hydrophobic

Question 20

Which group is Tryptophan in?

Answer 20

Nonpolar side chains

Hydrophobic

Question 21

Which group is Proline in?

Answer 21

Nonpolar side chains

Hydrophobic

Question 22

Which group is Serine in?

Answer 22

Polar side chains

Hydrophilic

Question 23

Which group is Threonine in?

Answer 23

Polar side chains

Hydrophilic

Question 24

Which group is Cysteine in?

Answer 24

Polar side chains

Hydrophilic

Question 25

Which group is Tyrosine in?

Answer 25

Polar side chains | Hydrophilic

Question 26

Which group is Asparagine in?

Answer 26

Polar side chains | Hydrophilic

Question 27

Which group is Glutamine in?

Answer 27

Polar side chains | Hydrophilic

Question 28

Which group is Aspartic Acid in?

Answer 28

Electrically charged side chains | Acidic, Negatively Charged, Hydrophilic

Question 29

Which group is Glutamic Acid in?

Answer 29

Electrically charged side chains | Acidic, Negatively Charged, Hydrophilic

Question 30

Which group is Lysine in?

Answer 30

Electrically charged side chains | Basic, Positively Charged, Hydrophilic

Question 31

Which group is Arginine in?

Answer 31

Electrically charged side chains | Basic, Positively Charged, Hydrophilic

Question 32

Which group is Histidine in?

Answer 32

Electrically charged side chains | Basic, Positively Charged, Hydrophilic

Question 33

What are the covalent bonds that link amino acids?

Answer 33

Peptide Bonds

Question 34

What does the sequence of amino acids determine for a protein?

Answer 34

Its structure

Question 35

A protein's ____ determines how it functions

Answer 35

Structure

Question 36

____ structure consists of coils and folds in the polypeptide chain

Answer 36

Secondary

Question 37

____ structure is determined by interactions among various side chains

Answer 37

Tertiary

Question 38

____ structure results when a protein consists of multiple polypeptide chains

Answer 38

Quaternary

Question 39

____ structure of a protein is its sequence of amino acids

Answer 39

Primary

Question 40

The primary structure of a protein is determined by

Answer 40

Genetic information

Question 41

An inherited blood disorder that results from a single amino acid substitution in the protein hemoglobin

Answer 41

Sickle Cell

Question 42

The loss of a protein’s native structure is called

Answer 42

Denaturation

Question 43

What is X-ray crystallography used for?

Answer 43

To determine a protein's structure