K Kirti 🎓 Tutor II ⭐ 10.45K Points 📊 Biology Q. Nitrogen is present in (A) carbohydrates (B) proteins (C) lipids (D) carbonates 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (B) proteins You must be Logged in to update hint/solution 💬 Discussion 💬 Comment