Q.33
Indicate the toxicant / agent, the toxicity of which increases due to ruminal metabolism?
- Ruminal Metabolism and Toxic Activation:
- Cyanogenic Glycosides (e.g., dhurrin in immature sorghum/jowar, linamarin in linseed/flax):
- Intact cyanogenic glycosides are relatively non-toxic when consumed.
- In the rumen, microbial $\beta$-glucosidase and hydroxynitrile lyase enzymes rapidly hydrolyze the glycosides, liberating free, lethal Hydrocyanic Acid (HCN / Cyanide):
- Free cyanide binds ferric iron ($Fe^{3+}$) in cytochrome oxidase, arresting cellular respiration. Hence, ruminal metabolism directly intensifies its toxicity.
- nalysis:
- (Cyanogenic glycosides): Correct.
Correct option: (3) Cyanogenic glycosides
Explanation not matching this question?
क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
Report
Want to practice this paper in exam conditions?
क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं?
Test yourself in 5-question batch format with timer and hidden answers.
5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।
Start Practice Mode →
प्रैक्टिस टेस्ट मोड शुरू करें →