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;
6 Cards in this Set
- Front
- Back
|
Digestive System |
|
|
|
Enzymes |
Amylase: Produced in the Pancreas and Salivary Glands, acts on starch to produce glucose Protease: Produced in the stomach, s. Intestine and pancreas, acts in proteins to produce amino acids Lipase: Produced in the pancreas and s. Intestine, acts on lipids to produce fatty acids |
|
|
Amin Acids |
Structure: H H O - H \ | / N - C - C / | \\ H R O -Amino Group: NCH -Carboxyl Group: COOH -Single Hydrogen and Central Carbon: C, H -R Group: Varies -Can join together to form Di and Poly peptides with bonds called peptide bonds through condensation reactions |
|
|
Proteins |
Structure: Primary: Sequence of amino acids in a polypeptide chain Secondary: Polypeptide chain is twisted into a 3D shape eg alpha helix or beta pleated sheet Tertiary: Alpha helix is further twisted to give unique 3D structure Quaternary: Combinations of different polypeptide chains and prosthetic groups to give a complex molecule Bonds: Disulfide: Fairly strong and not easily broken, joins two sections of the chain Hydrogen: Numerous but easily broken, joins positive and negative charges on adjacent molecules Ionic: Joins carboxly and amino groups that aren't involved in peptide bonds |
|
|
Mono, di and polysaccharides |
-Monosaccharides are simple sugars eg Glucose C6H12O6 -Disaccharides are 2 sugars eg Maltose= Glucose+Glucose Lactose= Glucose+Galactose Sucrose= Glucose+Fructose -Polysaccharides are 2 or more sugars, so they're very large molecules, also insoluble eg Starch and Cellulose |
|
|
Biuret Test: |
Detects peptide links -Sample in test tube, add biuret solution at room temp -Purple colour = Peptide bond present = protein -If no protein solution remains blue |
