The number of substrate level of phosphorylations in one turn of citric acid cycle is:

1.	One	2.	Two
3.	Three	4.	Four

Phosphorylation of glucose during glycolysis is
catalysed by

1. Phosphoglucomutase

2. Phoshoglucoisomerase

3. Hexokinase

4. Phosphorylase

Cytochrome c-oxidase complex contains

1. Cytochromes a and a₃ with two copper centres

2. Cytochromes a and a₃ with single copper centre

3. Cytochromes b and c₁ with two copper centres

4. Cytochromes a and a₃ with two iron centres

Which statement is not correct for Krebs’ cycle

1. Krebs’ cycle occurs in mitochondrial matrix

2. Pyruvic acid condense with OAA to form citric acid

3. 3 NADH₂ and 1 FADH₂ are produced during one Krebs’ cycle

4. Succinate dehydrogenase is found attached to inner mitochondrial membrane

Select the mobile electron carrier in inner mitochondrial membrane

1. NADH dehydrogenase

2. Cytochrome C

3. Cytochrome C oxidase complex

4. ATP synthase

Select the correct statement

Choose the correct option with respect to number of carbons present in the different acids produced in the Krebs’ cycle

(1) 6C, 5C, 2C

(2) 6C, 5C, 3C

(3) 6C, 5C, 4C

(4) 6C, 3C, 2C

When (i) are used in respiration the RQ is (ii). Select the correct option for (i) and (ii) that make the sentence a correct sense.
1. (i) Carbohydrates, (ii) > 1
2. (i) Proteins, (ii) > 1
3. (i) Fats, (ii) < 1
4. (i) Malic acid, (ii) < 1

In which of the following conversion steps occurring in the mitochondrial matrix, substrate-level phosphorylation occurs?

1. 1, 3-bisphosphoglyceric acid $\to$3-phosphoglyceric acid

2. Glucose-6-phosphate to fructose-6-phosphate

3. $\mathrm{\alpha }$-ketoglutaric acid $\to$ Succinyl CoA

4. Succinyl CoA $\to$ Succinic acid

In which compounds does sucrose is broken by Enzyme Invertase?

1. Glucose and galactose

2. Galactose and Fructose

3. Manose and glucose

4. Glucose and Fructose