Exams for 1203 BCH

• المقرر الدراسي: Clinical Biochemistry 1 (1203) BCH

Clinical Biochemistry I
Mid. II
 
 
Q1: Put (√ ) or ( X ) , Correct ( X ) one.
 
1.All carrier molecules in the ETC are proteins and loosely bound to the prosthetic group  . (   )
 
 
 
2. In ETC: For every two NADH2 , two O2 is reduced to one H2O molecule . (   )
 
 
 
3. Bile produced by the gallbladder and stored in the liver. (   )
 
 
 
4. Fatty acids are recycled through four different steps process. (   )
 
 
 
5.Hydration is removal of one hydrogen atom. (   )
 
 
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Q2. Fill in the blanks.
 
1. In ETC, FADH2 results in …………….. ,while NADH2 yields ………………….  .
 
 
2.One of the insulin defects is the ………………. of ……………….. to insulin.
 
 
3. Bile salts act as ……………….. to help breakup of fat globules.
 
                        
4. Activation step of β-oxidation occur in ………………………. , this activation require ………….. ATP molecules.
 
5. In β-oxidation , carrier molecule called as ……………………                                                                                            
 
   ………………..  +………………… 6.
 
 
7. Fatty acyl CoA ∆ uses …………….. as a Co factor , while L-3-hydroxy acyl CoA uses ……………… as a Co factor.
 
 
Q3: Answer the following :
 
 A/How many ATP produced by ETC each turn and locate each one in the suitable place?
B/ write the correct name of each complex.
 
C/ Explain β-Oxidation of fatty acids.
 
First Complex:………………………………….
 
NADH        FMN            FeS              CoQ
Red.             Oxi.             Red.            Oxi.
 
NAD+        FMNH2        FeS             CoQH2
Oxi.            Red.              Oxi.             Red.
 
 
         Fumerate                 FADH2
                                         Red.
 
        Succinate                 FAD+
                                        Oxi.
Second Complex:………………………………
 
Third Complex:………………………………..
 
CoQ                    Prosthetic           Cytochrome C1
Oxi.                     Groups.              Red.
 
CoQH2                                          Cytochrome C1
Red.                                               Oxi.  
 
Fourth Complex:………………………………..
 
Cyt.C1                                          H2O
Red.                                             
Cyt.C1                                          1/2 O2 + 2H+
Oxi.                                                                                                           Best Wishes,