Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
37 Cards in this Set
- Front
- Back
|
What does the IODINE TEST detect?
|
Polysaccharides (starch)
|
|
|
What does BENEDICTS TEST detect?
|
Monosaccharides and some diasaccharides
|
|
|
What does the SUDAN IV DYE TEST detect?
|
Lipids
|
|
|
What does the NINHYDRIN TEST detect?
|
Amino acids
|
|
|
What does the BIURET TEST detect?
|
Polypeptides and proteins
|
|
|
What color is a negative Iodine Test?
|
Yellow/Brown
|
|
|
What color is a positive Iodine Test?
|
Blue/Black
|
|
|
What does blue mean in a Benedicts Test?
|
Negative
|
|
|
What does Green to Yellow in a Benedicts Test mean?
|
Weak Positive
|
|
|
What does Orange to Red/Brown in a Benedicts Test mean?
|
Strong Positive
|
|
|
What color is a negative Suden IV Dye Test?
|
Dark Red/Brown
|
|
|
What color is a positive Sudan IV Dye Test?
|
Bright Red "Fire Engine Red"
|
|
|
When a Ninhydrin Test is colorless the result is?
|
Negative
|
|
|
When a Ninhydrin Test is yellow the result is?
|
Positive for proline only
|
|
|
When a Ninhydrin Test is Purple the result is?
|
Positive
|
|
|
When the Biuret Test is Blue, the result is?
|
Negative
|
|
|
When the Biuret Test is Yellow, the result is?
|
Positive for cysteine (amino acid) only
|
|
|
When the Biuret Test is Pink, the result is?
|
Positive
|
|
|
When the Biuret Test is Pink, the result is?
|
Positive for proteins
|
|
|
What were we looking for in the experiment?
|
Carbohydrates, Lipids, and Proteins
|
|
|
What is a monosaccaride?
|
"Building blocks" of all other carbohydrates; Cannot be broken down any simpler. (simple sugars)
|
|
|
What is a Disaccharide?
|
Formed when 2 monosaccharides are joined together with elimination of water
|
|
|
What is Hydrolysis?
|
Adding water to split the disaccharides or polysaccharides into monosaccharides
|
|
|
What is a Polysaccharide?
|
Combining many monosaccharides, after dehydration
|
|
|
What is a ketone group?
|
(Also known as: reducing sugars) Can donate electrons
|
|
|
What is HCl?
|
Hydrochloric acid
|
|
|
What are neutral lipids?
|
(AKA: triglycerides) Composed of glycerol and 3 fatty acids. Help the body store high energy molecules
|
|
|
What is a Bilayer of Phospholipids?
|
Hydrophilic phosphate heads of one layer move toward the inside of the cell (towards more water), the second layer moves to the outside of the cell(where theres less water)
|
|
|
What are the "building blocka" of proteins?
|
Amino acids
|
|
|
What links 2 amino acids together?
|
Peptide Bond
|
|
|
When many amino acids are linked together by peptide bonds this is know as a what?
|
Polypeptide Chain
|
|
|
What is an acid?
|
Substance that increases the concentration of hydrogen ions (H+) in water. PH SCALE: 0-7
|
|
|
What is a base?
|
Substance that decreases concentration of hydrogen ions. PH SCALE: 7-14
|
|
|
What does pH stand for?
|
Potential of the hydrogen ion
|
|
|
What is the molecular formula of Carbohydrates?
|
C(n)H(2n)O(n)
|
|
|
How many carbons in a Monosaccharide chain?
|
3-7 carbons
|
|
|
What is a buffer?
|
Helps maintain a constant pH level
|
