Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ZRT Biochem
| Question | Answer |
|---|---|
| What 2 monosaccharides make up lactose? | Galactose and glucose |
| What 2 monosaccharides make up sucrose? | Glucose and fructose |
| Which polysaccharide is composed of glucose units linked by alpha-1,4-linkages? | amylose |
| What polysaccharide has glucose linked by alpha-1,4 and alpha,1-6 linkages | glycogen |
| What polysaccharide has long chains of alpha-1,4- linkages and every 25 molecules has an alpha-1,6- branch? | Amylopectin |
| What polysaccharide has glucose moleculesbound at beta 1-4 linkages | cellulose |
| Which disaccharide has 2 glucose units | Maltose |
| Salivary amylase breaks down what type of linkages | alpha-1,4 |
| Maltase cleaves which linkage? | Alpha-1,4 |
| The enzymes maltase, sucrase, dextrinase and lactase are found where? | In the brush borders of the mucosal cells |
| What is the rate limited enzyme in the reaction of fructose to glucose? | Fructokinase |
| What is the rate limiting enzyme in the reaction of galactose to glucose? | galactokinase |
| Dextrin is only released from the hydrolysis of which polysacchardie | Amylopectin |
| What hormone is released when glucose levels are high? | Insulin |
| Which organ keeps a constant level of glucose in teh blood by storing and producing it as needed? | Liver |
| Which tissues do not require insulin to take up glucose? | Brain, RBC, Liver |
| Which hormones are released when glucose levels are down? | Glucagon Epinephrine Cortisol |
| Which of the catecholamines stimulates gluconeogenesis? | Epinephrine |
| Glucokinase is only found in which organs? | Liver |
| In what part of the cell does glycolysis occur? | Cytosol |
| What enzyme allows the liver to trap glucose in the form of glucose-6-phosphate | Glucokinase |
| What are the 3 rate limiting enzymes of glycolysis? | Glukokinase/hexokinase Phosphofructokinase Pyruvate kinase |
| How many molecules of pyruvate do we get from one molecule of glucose? | 2 |
| What mineral is required for the phosphorylation reactions of glucokinase and phosphofructokinase? | Magnesium |
| What is the net "harvest" from aerobic glycolysis? | 8 ATP |
| Which Krebs cycle intermediate inhibits action of phosphofructokinase and therefore inhibits glycolysis | Citrate |
| What is the net harvest of anaerobic glycolysis? | 2 ATP |
| What is the aerobic fate of pyruvate? | Acetyl SCoA |
Created by:
Krys2287