اسئلة صح وخطأ عن محاضرة ال alkaloid

1. Alkaloids are organic nitrogenous compounds of plant origin and are physiologically active. (True)
2. All alkaloids contain oxygen. (False)
3. Alkaloids are extracted only from plants and do not exist in other sources. (False)
4. Coffee contains the alkaloid known as caffeine, which is an example of pseudo-alkaloids. (True)
5. Alkaloids are tasteless and have no distinct flavor. (False)
6. Nicotine is the only alkaloid that is liquid at room temperature. (True)
7. Piperine is the main alkaloid found in black pepper, and it is completely tasteless. (False)
8. Certain reagents, such as Wagner’s reagent and Mayer’s reagent, are used to detect alkaloids. (True)
   Here are questions 9 to 16 in English:
9. Alkaloids are usually colorless, but some can be yellow or orange. (True)
10. Most alkaloids are easily soluble in water. (False)
11. True alkaloids are characterized by having a heterocyclic ring with a nitrogen atom and are derived from amino acids. (True)
12. Adrenaline and ephedrine are examples of true alkaloids. (False)
13. Alkaloids can form precipitates with heavy metals, which helps in their identification. (True)
14. Quinine is an alkaloid that belongs to the quinoline group. (True)
15. Alkaloids are classified only based on their plant source, not their chemical structure. (False)
16. Piperine is extracted from black pepper using a Soxhlet apparatus and ethanol as a solvent. (True)

Here are more True/False questions in English:
17. Alkaloids are generally weak bases, but some can be amphoteric, such as theobromine and theophylline. (True)
18. When alkaloids are treated with aqueous mineral acids, they convert into their salts. (True)
19. All alkaloids have the same level of basicity regardless of their chemical structure. (False)
20. Alkaloids can be classified into non-heterocyclic (atypical) and heterocyclic (typical) alkaloids based on their chemical structure. (True)
21. Examples of alkaloids that affect the central nervous system include morphine and nicotine. (True)
22. The naming of alkaloids depends only on their physiological activity. (False)
23. Alkaloids can be detected using reagents such as Dragendorff’s reagent and Mayer’s reagent. (True)
24. Pyridine and piperidine alkaloids are found in black pepper, with piperine being the main active compound. (True)
25. Quinine is an alkaloid that belongs to the tropane group. (False)
26. Most alkaloids are poorly soluble in water but dissolve well in organic solvents like chloroform and ether. (True)
27. Proto-alkaloids contain a heterocyclic ring with a nitrogen atom. (False)
28. Steroid and terpenoid alkaloids are examples of heterocyclic alkaloids. (True)
29. The isolation of piperine from black pepper involves using ethanol and potassium hydroxide. (True)
30. Caffeine is a true alkaloid derived from amino acids. (False)

عقاقير عملي

اسم المشتقات

ركزو ع الجانب اليمين
الدكتور كال ممكن اجيب الاسم بهيج طريقة

#عقاقير_نظري

الملزمة الاخيرة
د.سامر

ملاحظات تخص التسمية

❇️تفضل البداية OH

❇️كل acid / aldehyde /keton
يفضل النهاية

❇️كاربونه موقع 3 هي الي يصير بيها ارتباط بين الsugar part and non sugar part

❇️كل ene يعني مزودج .....تكون ملاصقة للمركب
يعني اذا عندي 19 كاربون
فهو اسمه Androstan
لكن من لكينا مزودج
يصير Androst ..رقم المزدوج ....ene

❇️نباوع لكاربون رقم 5 هي التي تحدد هو الفا لو بيتا "بالتسمية"

❇️بيتا خارج من الورقة يعني من تشوف | هذا بيتا✅

❇️الفا داخل الحلقة يعني خط متقطع او: نقاط
هذا الفا ✅

#عقاقير_نظري

عقاقير عملي

تعريف الـ volatile oil
اسماءه ....../......./........

من يتعرض للهواء يصيرله .........

مابي لون بحاله ...........اما بحاله..........يصيرله ..........ينطيني دارك كولر

Stored in ......./......./........

Soluble in ......./....../.........

..........with water

Dreived from ...........the structure ...............chemical name.............

ينقسم الى ........تسمى .......و .........تسمى .........

بخصوص النباتات والمجموعة الفعاله يجن بطريقة عكسية
ممكن تنطي النبات وتكول اي مجموعة بي
وممكن تنطي المجموعة وتريد example

"حفظوهم ذني عبارة عن سؤال مسرب ضروري يجن ""

كذلك الpart والامثلة
نفس الكلام السابق
مهمين حفظوهم

Pharmacological uses.........../......./........
او تنطي الاستخدام تريد النبات
او تنطي النبات تريد الاستخدام

طرق التحضير ......../.............

اسم الطريقة المستخدمة ..............

اسم الجهاز ............

السلام عليكم

القناة رجعت عامه

كل الروابط هسا تشتغل يمكم

وموفقين يا رب
واي شي تحتاجو بخدمتكم

الحمد لله إلى هنا نكون خلصنه الشرح و ركزت على كلشي كال عليه الدكتور مهم و جاي

#عضويهII