Exams for 1202 BCH

• المقرر الدراسي: Basic Biochemistry (1202) BCH

Name:
 
Basic Biochemistry
Mid. I
 
 
 
Q1. Put (√ ) or ( X ) , Correct ( X ) one.
 
 
1. Atom consists of positively charged nucleus " protons " and some neutrons 
" negatively charged " surrounded by one or more orbital electrons " no charged " (    )
 
 
2. Covalent bond is a polar bond. (    )
 
 
3. Amino acids is a building blocks of lipids. (    )
 
 
4.Essential a.à can be synthesized in the body. (    )
 
 
5. Ninhydrin react with carboxyl group of α- a.à to give a colored yellow product (    )
 
 
6. Rs = Distance traveled by solvent / Distance traveled by solute. (    )
 

 

 
 
Q2. Give an example of each:
 
1. Contractile and mobile proteins.                            3. a.à with aromatic R-group,
                                                                                       (with the structure)
 
 
 
 
 
2. Covalent bond.                                                       4. a.à contain a sulfhydryl group.
(with the structure)                
 
 
 
 
 
 
Q3. Fill in the Blanks:
 
1. A polar bond is a covalent bond when there is an ……………………………...........
between the two atoms .
 
2. R-group of a.à vary in ……………. , ………………. and …………………………. that influence there …………………. in water.
 
 
3. Glucogenic a.à produces ……………. as  an end product , example ………………. 
 
4. The structure of Zwitter ion is ……………………………………………………….
 
 
5. In chromatography : Molecules are separated on the basis of ………………...........
between  two phases …………………….....and ……………………………………..
 
 
6. Few a.à joined by a peptide bond called as………………………………………... .
 
 
7. Secondary structure of proteins: Refers to arrangement of a.à that are ……………..
………………….. in the poly peptide chain.
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
GOOD LUCK!