The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products.
  
Arrows numbered 4, 8, 12 can all be

1.	NADH	2.	ATP
3.	H2O	4.	FAD+ or FADH2

Which of the metabolites is common to respiration, mediated breakdown of fats, carbohydrates and proteins?
1. Glucose-6-phosphate
2. Fructose 1, 6, bisphosphate
3. Pyruvic acid
4. Acetyl Co-A

The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called
1. glycolysis
2. fermentation
3. aerobic respiration
4. photorespiration

Aerobic respiratory pathway is appropriately termed

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate (ATP) is formed because
1. high energy bonds are formed in mitochondrial proteins
2. ADP is pumped out of the matrix into the intermembrane space
3. a proton gradient forms across the inner membrane
4. there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)

Which one of the following mammalian cells are not capable of metabolising glucose to carbon dioxide aerobically?

All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is
1. lactate dehydrogenase
2. isocitrate dehydrogenase
3. malate dehydrogenase
4. succinate dehydrogenase

The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:
1. ATP in small stepwise units
2. ATP in one large oxidation reaction
3. Sugars
4. Nucleic acids

How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to ${\mathrm{CO}}_2$ and ${\mathrm{H}}_2\mathrm{O}$ yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 Kcal?

In respiration from 180g of glucose, which of the following is formed?
1. 264gm ${\mathrm{CO}}_{\mathrm{2 }}$+190gm ${\mathrm{H}}_2\mathrm{O }$+ 391 Kcal
2. 264gm ${\mathrm{CO}}_{\mathrm{2 }}$+108gm ${\mathrm{H}}_2\mathrm{O }$+ 686 Kcal
3. 390gm ${\mathrm{CO}}_{\mathrm{2 }}$+108gm ${\mathrm{H}}_2\mathrm{O }$+ 686 Kcal
4. 390gm ${\mathrm{CO}}_{\mathrm{2 }}$+ 264gm ${\mathrm{H}}_2\mathrm{O }$+ 391 Kcal