| Hint | Answer | % Correct |
|---|---|---|
| Inhibits mitochondrial cytochrome oxidase and blocks oxidative metabolism. | Cyanide | 71%
|
| Blocks glycine receptors, resulting in muscle spasms. | Strychnine | 37%
|
| Binds to presynaptic receptors and prevents release of Ach vesicles. | Botulinum toxin | 29%
|
| From nightshade, competitively inhibits muscarinic Ach receptors. | Atropine | 20%
|
| Agonist at nicotinic Ach receptors. | Nicotine | 20%
|
| Gaseous form burns eyes and lungs. Liquid form seeps through skin and breaks down bones. | Hydrofluoric acid | 11%
|
| Voltage gated Na channel blocker. | Tetrodotoxin | 11%
|
| From fungi, overstimulates muscarinic Ach receptors. | Muscarine | 9%
|
| Blocks glycine release in CNS, by binding to receptors in the brain stem and spinal chord. | Tetanus | 9%
|
| Blocks Nicotinic Ach receptors. | Curare | 6%
|
| From snakes, binds and blocks nicotinic receptors. | Alpha-bungarotoxin | 3%
|
| Black widow spider venom, causes over release of Ach. | Alpha-Latrotoxin | 3%
|
| Antibodies against Ach receptors. | Myasthenia gravis | 3%
|
| Inhibits Na/K ATPase. | Ouabain | 0%
|