كيمياء حيوية : كويز 1

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| By Gaithaljedi

Gaithaljedi

Community Contributor

Quizzes Created: 1 | Total Attempts: 536

: 6 | Attempts: 536 | Updated: Mar 21, 2023

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Questions and Answers

1.

Type response below
2.

Dأغلب السكريات الاحادية هي من نوع
- A.
  
  صح
- B.
  
  خطأ
Correct Answer
A. صح

Explanation
The correct answer is "صح" which means "true" in Arabic. This suggests that the majority of monosaccharides are of a certain type. However, without further context or information, it is not possible to determine the specific type of monosaccharides being referred to in this question.

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1
3.

C3H5O3إذا كان عدد ذرات الكربون 3 فإن الصيغة الأولية للمركب السكري هي
- A.
  
  خطأ
- B.
  
  صح
Correct Answer
A. خطأ
4.

C6H12O6عدد المتصاوغات لسكر الجلوكوز عالما بأن الصيغة الجزيئية له هي
- A.
  
  16
- B.
  
  4
- C.
  
  32
- D.
  
  64
Correct Answer
A. 16

Explanation
The molecular formula of glucose is C6H12O6. Each carbon atom in the molecule can exist in a different spatial arrangement, resulting in different stereoisomers. Glucose has 16 stereoisomers because there are 4 chiral carbon atoms in the molecule, and each chiral carbon can have 2 possible configurations (R or S). Therefore, the total number of stereoisomers is 2^4 = 16.

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1
5.

الرابطة التي تنشأ بين سكرين أحاديين لتكوين سكر ثنائي هي الرابطة السكرية
- A.
  
  صح
- B.
  
  خطأ
Correct Answer
A. صح

Explanation
The explanation for the given correct answer is that the statement is stating that the bond formed between two monosaccharides to form a disaccharide is called a glycosidic bond. This is a type of covalent bond that joins the two monosaccharides together, resulting in the formation of a disaccharide.

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6.

يعتبر السيليلوز من السكريات البنائية
- A.
  
  صح
- B.
  
  خطأ
Correct Answer
A. صح

Explanation
The given statement is correct because cellulose is a complex carbohydrate that is composed of glucose molecules. It is a structural component of plant cell walls and provides rigidity and support to plant cells. Cellulose is considered a polysaccharide, which is a type of complex sugar that is formed by the bonding of multiple sugar molecules. Therefore, it is accurate to say that cellulose is a structural sugar.

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Apr 15, 2020

Quiz Created by
Gaithaljedi

كيمياء حيوية : كويز 1

Type response below

Dأغلب السكريات الاحادية هي من نوع

C3H5O3إذا كان عدد ذرات الكربون 3 فإن الصيغة الأولية للمركب السكري هي

C6H12O6عدد المتصاوغات لسكر الجلوكوز عالما بأن الصيغة الجزيئية له هي

الرابطة التي تنشأ بين سكرين أحاديين لتكوين سكر ثنائي هي الرابطة السكرية

يعتبر السيليلوز من السكريات البنائية