Chapter #3

Question 1

what functional group has -OH?

Answer 1

hydroxyl

Question 2

what is the functional group has O=–C–

Answer 2

carbonyl

Question 3

what is the functional group has O=-C-OH

Answer 3

carboxyl

Question 4

what functional group has -N-H-H

Answer 4

Amino

Question 5

what functional group has -S-H

Answer 5

Sulfhydryl

Question 6

what functional group has -O-P-O

Answer 6

Phosphate

Question 7

what functional group has -C-H

Answer 7

Methyl

Question 8

Define Isomers

Answer 8

organic molecules having the same molecular or empirical formula can exist in different forms

Question 9

Define structural isomers

Answer 9

structure of carbon skeletons

Question 10

Define stereoisomers

Answer 10

isomers that differ in spatial arrangement of atoms, rather than order of atomic connectivity

Question 11

what is the simplest form of carbohydrates?

Answer 11

Monosaccharide

Question 12

what is a disaccharide

Answer 12

serves as as effective reservoirs of glucose

Question 13

what is Chitin?

Answer 13

structural material found in arthropods and many fungi

Question 14

what is cellulose?

Answer 14

an insoluble substance which is the main constituent of plant cell walls and of vegetable fibers such as cotton. It is a polysaccharide consisting of chains of glucose monomers.

Question 15

what is a peptide bond?

Answer 15

forms when the amino end of one amino joins to the carboxyl end of another

Question 16

what is a polypeptide?

Answer 16

an unbranched chain of amino acids linked by peptide bonds

Question 17

what is a peptide that is spiraled?

Answer 17

a helix

Question 18

explain a secondary structure.

Answer 18

the sort of regular interaction of groups in the peptide backbone

Question 19

what is a B sheet?

Answer 19

a form of secondary structure can occur between regions of peptide aligned next to each other to from a planer structure.

Question 20

what is a final fold of a globular protein?

Answer 20

tertiary structure

Question 21

what is the arrangement of subunits?

Answer 21

quaternary structure

Question 22

what is triglyceride?

Answer 22

contains fatty acids , a fat molecule

Question 23

is a lipid head hydrophilic or hydrophobic?

Answer 23

hydrophilic

Question 24

is a lipid tail hydrophilic or hydrophobic?

Answer 24

hydrophobic

Question 25

what are Motifs?

Answer 25

A structure of proteins that confers function and can be found in multiple proteins

Question 26

what are domains?

Answer 26

A distinct modular region of a protein that serves a particular function in the action of the protein.