2 Macromolecules

Question 1

4 classes of macromolecules

Answer 1

carbohydrates
proteins
lipids
nucleic acids

Question 2

carbs

Answer 2

ex: monosaccharides, disaccharides, polysaccharides

Question 3

Lugol’s reagent

Answer 3

aka iodine
detects complex sugars
+ = dark blue
- = yellow

Question 4

Benedict’s Reagent

Answer 4

aka copper sulfate
reacts w/ mono & disaccharides at high temps
colors show increasing conc. of simple sugars
(lowest) blue- green- yellow -red (highest)

Question 5

proteins

Answer 5

are macromolecules that contain amino acids

Question 6

Biuret Assay

Answer 6

= copper sulfate, copper reacts w/ peptides in protein
indicates whether a protein is present in solution
no protein = blue
small peptides = pink
higher the conc. protein = darker the purple

Question 7

structural molecules

Answer 7

cellulose in cell wall
phospholipoid in cell membrane

Question 8

functional molecules

Answer 8

ex: enzymes, neurotransmitters, hormones

Question 9

dehydration synthesis

Answer 9

molecules are covalently joined together with the addition of energy and the release of a water molecule

Question 10

hydrolysis

Answer 10

bonds are broken by adding a water molecule and the release of energy

Question 11

complex sugars

Answer 11

= polysaccharides
starch
amylose
cellulose

Question 12

Glycogen

Answer 12

an energy storage molecule

Question 13

cellulose

Answer 13

super structurally stable so indigestible to most animals

Question 14

paper/ grease spot test

Answer 14

shows if lipids are present
- put liquid on brown paper and if after dries its see through it is positive