module 3

Question 1

organic molecules

Answer 1

contain carbon and hydrogen

Question 2

Four most abundant types

Answer 2

Carbohydrates, lipids, proteins, and nucleic acids

Question 3

carbon

Answer 3

backbone of the macromolecules, atomic number of 6 (6 electrons and 6 protons) can form four bonds-bonding covalent sharing

Question 4

organic molecules

Answer 4

have the ability to polymerize, or form long chains of molecules called polymers which are made up of repeating subunits or monomers

Question 5

positive control

Answer 5

contains variables you are testing

Question 6

negative control

Answer 6

does not contain variable you are testing - often only contains water

Question 7

qualitative analysis

Answer 7

an investigative procedure that yields non-numeric results such as color which are then used to identify a compound

Question 8

indicator

Answer 8

a chemical that changes color when chemical conditions change or when a chemical reaction takes place

Question 9

biurets

Answer 9

protein, iodine-starch

Question 10

benedicts

Answer 10

sugar, sudan 3 or brown paper - lipids

Question 11

comon proteins in biological systems

Answer 11

enzymes, antibodies, transport proteins, regulatory proteins, and structural proteins

Question 12

lipids

Answer 12

hydrophobic- much greater number of carbon and hydrogen atoms with very few oxygen atoms present.

Question 13

steroids

Answer 13

lipids which are typically made up of fused hydrocarbon rings

Question 14

triglycerides

Answer 14

fats and oils which are biomolecules that are composed of glycerol and 3 fatty acids

Question 15

saturated

Answer 15

fatty acids having hydrocarbon chains with single bonds only

Question 16

amphipathic

Answer 16

both hydrophobic and hydrophilic properties

Question 17

fats

Answer 17

lipids from animals - solid at room temperature

Question 18

Monomers

Answer 18

small molecules, mostly organic, that can join with other similar molecules to form very large molecules

Question 19

polymers

Answer 19

a class of synthetic substances composed of multiples of simpler units called monomers. Polymers are chains with an unspecified number of monomeric units.

Question 20

phospholipids

Answer 20

have a phosphate head and two fatty acid tails

Question 21

Nucleic Acids

Answer 21

Store and Transmit Genetic Information

Question 22

Denaturation

Answer 22

involves the breaking of many of the weak linkages, or bonds (e.g., hydrogen bonds), within a protein molecule that are responsible for the highly ordered structure of the protein in its natural (native) state. … The denaturation of many proteins, such as egg white, is irreversible.