Podcast
Questions and Answers
Which of the following is the chief alkaloid found in the simple amides of lysergic acid group?
Which of the following is the chief alkaloid found in the simple amides of lysergic acid group?
- Ergine
- Ergotamine
- Ergocristine
- Ergonovine (ergobasine, ergometrine) (correct)
Which group of alkaloids constitutes approximately 80% of the total alkaloids in Claviceps purpurea?
Which group of alkaloids constitutes approximately 80% of the total alkaloids in Claviceps purpurea?
- Lysergic acid derivatives
- Ergopeptines (correct)
- Clavines
- Ergotoxines
Which of the following is a principal alkaloid included in the ergopeptines group?
Which of the following is a principal alkaloid included in the ergopeptines group?
- Ergonovine
- Ergovaline
- Ergine
- Ergotamine (correct)
What type of solution are alkaloids derived from lysergic acid sensitive to?
What type of solution are alkaloids derived from lysergic acid sensitive to?
Which alkaloid is soluble in water and represents about 20% of the total alkaloids?
Which alkaloid is soluble in water and represents about 20% of the total alkaloids?
Which color reaction can be used for the quantitation of ergot alkaloids?
Which color reaction can be used for the quantitation of ergot alkaloids?
Which alkaloid is a potent vasoconstrictor acting by stimulation of the alpha-adrenergic receptors or the serotonergic receptors in the case of the cranial blood vessels?
Which alkaloid is a potent vasoconstrictor acting by stimulation of the alpha-adrenergic receptors or the serotonergic receptors in the case of the cranial blood vessels?
Which alkaloid is a potent oxytocic that increases basal tone, and the frequency and strength of uterine contractions, particularly linked to the stimulation of the alpha-adrenergic receptors in the myometrium?
Which alkaloid is a potent oxytocic that increases basal tone, and the frequency and strength of uterine contractions, particularly linked to the stimulation of the alpha-adrenergic receptors in the myometrium?
Which method can be used for the analysis of complex alkaloid mixtures such as total alkaloids, fermentation media, and pharmaceutical formulations?
Which method can be used for the analysis of complex alkaloid mixtures such as total alkaloids, fermentation media, and pharmaceutical formulations?
Which structural analogy explains the affinity of ergot alkaloids and their derivatives for endogenous amine receptors and their ability to exert agonistic or antagonistic effects on those receptors?
Which structural analogy explains the affinity of ergot alkaloids and their derivatives for endogenous amine receptors and their ability to exert agonistic or antagonistic effects on those receptors?
Which alkaloid is thought to be linked to the stimulation of the alpha-adrenergic receptors in the myometrium, resulting in increased basal tone and frequency of uterine contractions?
Which alkaloid is thought to be linked to the stimulation of the alpha-adrenergic receptors in the myometrium, resulting in increased basal tone and frequency of uterine contractions?
Which alkaloid is a potent vasoconstrictor acting by stimulation of the alpha-adrenergic receptors or the serotonergic receptors in the cranial blood vessels?
Which alkaloid is a potent vasoconstrictor acting by stimulation of the alpha-adrenergic receptors or the serotonergic receptors in the cranial blood vessels?
Which alkaloid is soluble in water and represents about 20% of the total alkaloids?
Which alkaloid is soluble in water and represents about 20% of the total alkaloids?
Which alkaloid is a structural analog of endogenous amines such as noradrenaline, dopamine, and serotonin, and has the ability to exert agonistic or antagonistic effects on their receptors?
Which alkaloid is a structural analog of endogenous amines such as noradrenaline, dopamine, and serotonin, and has the ability to exert agonistic or antagonistic effects on their receptors?
Which method can be used for the analysis of complex alkaloid mixtures such as total alkaloids, fermentation media, and pharmaceutical formulations?
Which method can be used for the analysis of complex alkaloid mixtures such as total alkaloids, fermentation media, and pharmaceutical formulations?
Which alkaloid is a potent vasoconstrictor acting by stimulation of the alpha-adrenergic receptors or the serotonergic receptors in the case of the cranial blood vessels?
Which alkaloid is a potent vasoconstrictor acting by stimulation of the alpha-adrenergic receptors or the serotonergic receptors in the case of the cranial blood vessels?
What type of solution are alkaloids derived from lysergic acid sensitive to?
What type of solution are alkaloids derived from lysergic acid sensitive to?
Which structural analogy explains the affinity of ergot alkaloids and their derivatives for endogenous amine receptors and their ability to exert agonistic or antagonistic effects on those receptors?
Which structural analogy explains the affinity of ergot alkaloids and their derivatives for endogenous amine receptors and their ability to exert agonistic or antagonistic effects on those receptors?
Which color reaction can be used for the quantitation of ergot alkaloids?
Which color reaction can be used for the quantitation of ergot alkaloids?
Which method can be used for the analysis of complex alkaloid mixtures such as total alkaloids, fermentation media, and pharmaceutical formulations?
Which method can be used for the analysis of complex alkaloid mixtures such as total alkaloids, fermentation media, and pharmaceutical formulations?
