Chapters 2-5 Flashcards Preview

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Flashcards in Chapters 2-5 Deck (22)
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1

Polar molecuale

opposite ends have different charges

2

Cohesion

force of hydrogen bonds sticking together

3

Adhesion

the clinging of one substance to another substance

4

surface tension

measure of how difficult it is to stretch or break the surface

5

Specific Heat

Amount of heat that must be absorbed or lost for 1g of that substance to change it's temp 1 celsius

6

Heat of vaporization

quantity of heat a liquid must absorb for 1g of it to be converted to the gaseous state

7

Colloid

substance that is hydrophilic but does not dissolve

8

Reason why hydrophobic bonds do not attach to water

non polar bonds between molecules

9

What is a hydroxide bond?

OH-

10

Buffers

biological fluids that maintain PH levels

11

Structural Isomers

Differ in covalent arrangement

12

Enantiomers

molecules that are mirror images of each other

13

4 macro molecules

Carbohydrates, proteins, nucleic acids

14

Glycosidic link

dehydration bond between two monosaccharides

15

Difference between cellulose and starch

Glucose molecules are in a configuration, cellulose is in b configuration

16

Chitin

exoskelton of cellulose

17

Triacyglycerol

one glycerol molecule with three fatty acid chains attached to it

18

In phospholipids, the head is ___ and the tail is ____

hydrophilic, hyrophobic

19

Six functions of protein

enzymes, support, transport of substances, coordination of an organisms activities, movement, defense against diseases

20

Peptide bond

bond between two amino acids

21

denaturation

unraveling of protein

22

Chaperonins

cantene like protein that folds polypeptides