Q1) Multiple choice questions:-

1) In which of the following steps dehydrogenation occurs?

a) Glucose    →   Glucose 6 phosphate 

b) 3 PGA     →    2 -PGA  

c) PEPA    →       Pyruvate 

d) PGAL    →      1 , 3 diPGA 

2) On decarboxylation, pyruvate gives ..........

a) Acetaldehyde 
b) ethyl alcohol  
c) lactic acid  
d) methyl alcohol 

3) During kreb's cycle, fumaric acid gets converted to malic acid by ......

a) Decarboxylation 
b) dehydrogenation 
c) dehydration 
d) hydration 

4) One glucose molecule through ETS ( Electron transport system ) yields .........

a) 2 ATP Molecules  
b) 3 ATP Molecules  
c) 34 ATP molecules  
d) 38 ATP Molecules 

Q2) ATP is known as currency of energy. Give the structure of ATP to support your answer 

Q3) Draw a flowchart and give schematic representation of Glycolysis or EMP Pathway (Embden, Meyerhof, Parnas) pathway .

Q4) Describe following steps of Glycolysis with equations :-

a) Isomerisation 
b) Phosphorylation I and Phosphorylation II
c) Cleavage 
d) Dehydration 

Q5) Kreb's cycle also known as TCA cycle or citric acid cycle has many reactions like following explain them one by one:- 

a) Condensation 
b) Isomerisation
c) Oxidation
d) Oxidative decarboxylation 

Q6) What is Respiratory Quotient ?  Give RQ of the following 

a) Carbohydrates 
b) Fats or Proteins 
c) Anaerobic respiration 

Q7 ) Draw a labelled diagram to explain Kreb's cycle 

Q8) In mammals, glucose is the only fuel  that the brain uses under non starvation conditions and the only fuel  that red blood cells can use at all. Why is glucose instead of some other monosaccharides such a prominent fuel? 

Q9 ) Complete the following reactions (for Glycolysis):-

a) Glucose + ATP    → Glucose 6 phosphate + ADP ( Whats the enzyme involved in the reaction) 

b) Glucose 6 - phosphate  →  Fructose 6 phosphate ( what's the enzyme )

c) 3 PGA   →   ( Phosphoglycerol mutase )... whats the end product                         

d) PEPA + ADP + H2O ( Pyruvate kinase ) →  ( whats the end product ) + ATP 

Q10) Complete the following reactions ( for kreb's cycle)

a) OAA+ Acetyl Co A + H2O                   Citrate  + CoA ( Whats the enzyme involved )

b) Cis aconitase + H2O                         Iso citrate ( whats the enzyme involved )