Choose the true statement(s) about coenzymes. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer.
| An example of a coenzyme is FAD. |
| An example of a coenzyme is NAD+. |
| Inorganic, non-protein cofactors are typically called coenzymes. |
| Coenzymes are often vitamins or are made from vitamins. |
Arsenic is a toxic metalloid that is known to interfere with cellular metabolism. Your patient (a 3-year old female) ingested a toxic amount of arsenic, and you find the below metabolites in her blood. Based on these metabolite levels, which part of cellular respiration can you conclude that arsenic directly inhibits?
| Metabolite | Average Patient Level | Normal Levels |
| Glucose | 99 μM | 100 μM |
| Pyruvic acid | 29 μM | 30 μM |
| Acetyl-CoA | 1 μM | 15 μM |
| Carbon dioxide | 2 μM | 27 μM |
| NAD+ | 200 μM | 75 μM |
| NADH | 2 μM | 50 μM |
| Intermediate step |
| Electron transport chain |
| Krebs cycle |
| Glycolysis |
1. The statements true about coenzymes are :
- an example of coenzyme is NAD+
-an example of coenzyme is FAD
- Coenzymes are often vitamins or are made of vitamins .
Inorganic ,non protein cofactors are typically called coenzyme is false because coenzymes are organic and non protein.
2. Arsenic affects all of the process of cellular respiration. It inhibits the Glycolysis. It replaces the phosphate groups that is needed for making Pyruvate and ATP
Choose the true statement(s) about coenzymes. To be marked correct, you'll need to select all true...
Choose the true statement(s) about plasmids. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer. Plasmid tend to be circular. Plasmids often contain genes that confer a survival advantage to a cell. Plasmids usually consist of single stranded DNA. Plasmids tend to exist outside of a cell's chromosome.
Choose the true statement(s) about keratitis. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer. Keratitis is severe inflammation of the cornea. Protozoan keratitis is caused by Acanthamoeba Keratitis is less serious than conjunctivitis and does not warrant medical attention. Keratitis can be caused by viral, bacterial, fungal, and parasitic species.
Choose the true statement(s) regarding phosphodiester bonds. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer. Phosphodiester bonds are what hold the "sugar-phosphate" backbone of DNA together Phosphodiester bonds hold the "rungs" of a double-stranded DNA "ladder" together. Phosphodiester bonds are created by linking the 3' hydroxyl group to the 5' phosphate of an adjacent nucleotide. Phosphodiester bonds are only in DNA