$\mathrm{Pyruvic} \mathrm{acid} +\mathrm{CoA}+{\mathrm{NaD}}^{+}\stackrel{\mathrm{A}}{\to }$
$\mathrm{B}+{\mathrm{CO}}_2+{\mathrm{NADH}}^{+}+{\mathrm{H}}^{+}$ in the above given reaction of respiration what can be placed at the place of A and B respectively?

1. Iron and Citric acid.
2. Magnesium and Citric acid.
3. Dehydrogenase and Acetyl CoA.
4. Iron and Acetyl CoA

NADH synthesized in glycolysis of aerobic respiration
is transferred into

1. Cytoplasm for oxidative phosphorylation.
2. Mitochondria for oxidative phosphorylation.
3. Mitochondria for photo oxidation.
4. ETS for photo oxidation.

Presence of oxygen is vital in aerobic respiration because:

1. It drives the whole process by removing hydrogen from ETS.

2. Oxygen causes phosphorylation which is light stimulated.

3. Oxygen directly stimulates complex V to generate ATP.

4. Oxygen is the initial electron acceptor.

When two molecules of glucose are completely oxidized in aerobic respiration, how many ATPs are generated through $FAD{H}_2$?

1. 6

2. 15

3. 8

4. 4

Read the following statements:

(a) $F_0$ part of ATPase is associated with breakdown of proton gradient

(b) A H-carrier contributes in creation of proton gradient

(c) Movement of electrons in ETS is coupled to pumping of protons into the lumen

(d) Formation of NADPH + $H^{+}$ is related with the creation of proton gradient

How many of the above statements are correct?

1. Two 

2. One

3. Four

4. Three

What is the net gain in a Krebs cycle?

1. $1 FAD{H}_2, 2 NAD{H}_2 and 1 ATP$

2. $2 FAD{H}_2, 2 NAD{H}_2 and 2 ATP$

3. $1 FAD{H}_2, 3 NAD{H}_2 and 1 ATP$

4. $1 FAD{H}_2, 6 NAD{H}_2 and 2 ATP$

Ubiquinone carries electron from

1. Complex III to complex IV

2. Complex I to complex II

3. Complex II to complex III

4. Complex I or II to complex III

Choose the correct names of A, B, C and D

RQ of tripalmitin is

1. $\frac{6{\mathrm{CO}}_2}{6{\mathrm{O}}_2}$

2. $\frac{102{\mathrm{CO}}_2}{145{\mathrm{O}}_2}$

3. $\frac{2{\mathrm{CO}}_2}{\mathrm{Zero} {\mathrm{O}}_2}$

4. $\frac{4{\mathrm{CO}}_2}{1{\mathrm{O}}_2}$

Mark the incorrect match
          Aerobic                   Anaerobic
1. Complete breakdown  -  Partial breakdown.
of glucose 
2. Net gain 38 ATP         -  Net gain 2 ATP.
3. Vigrously                   - NADH oxidised slowly
4. CO₂ released              - No CO₂ released.