Unit 4 Quiz

Question 1

Macromolecules

Answer 1

Carbohydrates
Lipids
Proteins
Nucleic Acids

Question 2

Carbohydrates

Answer 2

primary energy source

Question 3

Lipids

Answer 3

secondary energy source.

important because all cells are made of phospholipids

Question 4

Monomer

Answer 4

a subunit that composes a macromolecule

Question 5

Protein’s monomer

Answer 5

amino acids

Question 6

Carbohydrates’s monomer

Answer 6

simple sugars

Question 7

Lipid’s monomer

Answer 7

glycerol + fatty acids

Question 8

Carbohydrates

Answer 8

Monosaccharides
Disaccharides
Polysaccharides

Question 9

Monosaccharides

Answer 9

1 molecule
simple sugars
glucose
fructose

Question 10

fructose

Answer 10

naturally occurring sugar in fruit

Question 11

Disaccharides

Answer 11

2 monosaccharides
sucrose
lactose
maltose

Question 12

Polysaccharides

Answer 12

starch

cellulose

Question 13

Starch

Answer 13

naturally occurring found in plants

Question 14

Dehydration Synthesis (Condensation Synthesis)

Answer 14

how you get disaccharides and polysaccharides.

Two monomers bond together, and then water is released, (and then a covalent bond is formed)

Question 15

Colorimetry

Answer 15

put a solution in a test tube and test for protein

Question 16

Protein + Biuret —>

Answer 16

Purple

this indicates that there is protein present

Question 17

Polymer

Answer 17

Chain of monomers

Question 18

Lipids

Answer 18

all lipids are hydrophobic (afraid of water)

Question 19

Examples of lipids

Answer 19

fat, oil, wax, cholesterol, and steroids

Question 20

Saturated Fats

Answer 20

solid (at room temperature)

Question 21

Unsaturated Fats

Answer 21

liquid (at room temperature)

Question 22

Lipid test Reagent

Answer 22

Sudan IV (four) dye

Bright Red

Question 23

Lipid Emulsifier

Answer 23

Detergent

Question 24

Benedict’s Test

Answer 24

testing to see if a solution contains “simple sugar” (reducing sugars)

Add reagent.
You also have to add third factor (heat) to drive the reaction.

You’ll get a color change if the simple sugar (Reducing sugars) are there

Question 25

Reducing Sugars Reagent

Answer 25

Benedict’s Reagent

Question 26

Reducing Sugars Positive Outcome coloratin

Answer 26

+++ (large amount) burnt orange
++ (medium amount) yellow
+ (small amount) green

Question 27

Starch Test Reagent

Answer 27

Iodine

Question 28

Starch Test Positive Outcome coloration

Answer 28

Black

Question 29

Protein Test Reagent

Answer 29

Biuret

Question 30

Protein Test positive outcome coloration

Answer 30

Purple

bright purple=large amount

Question 31

Protein test/ Biuret looking for bonds (peptide bonds) between amino acids to indicate there is an

Answer 31

entire molecule of amino acids present.

Question 32

Protein test negative coloration

Answer 32

very light blue

Question 33

Starch test negative coloration

Answer 33

orange/brown

Question 34

Reducing sugars test negative coloration

Answer 34

blue

Question 35

Water was used in all three sections of the lab as a

Answer 35

negative control

because water has no protein or sugar

Question 36

Example of a monosaccharide

Answer 36

glucose

Question 37

Example of a disaccharide

Answer 37

sucrose

Question 38

Example of a polysaccharide

Answer 38

starch

Question 39

Protein molecules have special bonds called

Answer 39

peptide bonds

Question 40

Monosaccharides bond together in a process called

Answer 40

dehydration synthesis to make disaccharides and polysaccharides. During this process water is lost to create a covalent bond between monosaccharides.