Chapter 14

Partial oxidation of glucose without the help of oxygen into pyruvic acid is known as (a) Glycolysis (b) Kreb's cycle (c) ETS (d) All of these

The scheme of glycolysis is given by (a) Embden (b) Meyerhof (c) Parnas (d) All of these

Which of the following is correct about glycolysis (EMP pathway)? (a) It is a common path for aerobic and anaerobic respiration. (b) It occurs in cytoplasm. (c) \(\mathrm{O}_{2}\) is not required for this process. (d) All the above

Number of controlled steps required in glycolysis are: (a) 1 (b) 5 (c) 10 (d) 15

In plant the end product of photosynthesis is (a) Sucrose (b) Starch (c) Glycogen (d) Glucose

The enzyme which converts sucrose to glucose and fructose. (a) Maltase (b) Invertase (c) Lactase (d) Hexokinase

Glucose \(\rightarrow\) Glu-6-phosphate occurs due to the enzyme (a) Hexokinase (b) Oxidase (c) Hydrolase (d) Lysase

Common to all living organism is (a) Kreb's cycle (b) EMP pathway (c) ETC (d) All of these

1 molecule of glucose on glycolysis produces (a) 2 molecule of pyruvic acid (b) 1 molecule of pyruvic acid (c) 2 molecule of \(\mathrm{CO}_{2}\) (d) 2 molecule of \(\mathrm{O}_{2}\)

Which of the following is a energy yielding process? (a) 2-phosphoglycerate to 2-phosphoenolpyruvate (b) Frutose to fructose-6-phosphate (c) Phosphoenolpyruvic acid to pyruvic acid (d) Fructose 1,6 -bisphosphate to PGAL and DHAP

Yeast poisons themselves to death when alcohol concentration reaches to in alcoholic fermentation. (a) \(2 \%\) (b) \(10 \%\) (c) \(13 \%\) (d) \(20 \%\)

Lactic acid fermentation occurs in (a) Some bacteria (b) Muscle cell under anaerobic condition (c) Both (a) and (b) (d) Aerobic condition

Which of the following relation shows substrate level phosphorylation? (a) Citric acid \(\quad \rightarrow \alpha\) -ketoglutaric acid (b) Malic acid \(\rightarrow\) oxaloacetic acid (c) \(\alpha\) -ketoglutaric acid \(\rightarrow\) Succinyl-CoA (d) Succinyl-CoA \(\rightarrow\) Succinic acid

Which of the following is a ' \(5 \mathrm{C}\) ' compound? (a) Oxaloacetic acid (b) Citric acid (c) \(\alpha\) -ketoglutaric acid (d) Succinic acid

At how many places in Kreb's cycle \(\mathrm{NADH}+\mathrm{H}^{+}\) is formed? (a) 1 (b) 2 (c) 3 (d) 4

At how many places in Kreb's cycle FADH \(_{2}\) is formed? (a) 1 (b) 2 (c) 3 (d) 4

ETS is present in (a) Stroma (b) Matrix of mitochondria (c) Inner membrane of mitochondria (d) Outer membrane of mitochondria

Match the column: Column I Column II A. NADH dehydrogenase \- 1. Complex IV B. Cytochrome \(\mathrm{bc}_{1}\) 2\. Complex III C. Cytochrome \(\mathrm{aa}_{3}\) 3\. Complex I D. ATP synthase 4\. Complex V (a) A-1, B-2, C-3, D - - (b) \(\mathrm{A}-3, \mathrm{~B}-2, \mathrm{C}-1, \mathrm{D}-4\) (c) \(\mathrm{A}-4, \mathrm{~B}-1, \mathrm{C}-3, \mathrm{D}-2\) (d) \(\quad \mathrm{A}-1, \mathrm{~B}-4, \mathrm{C}-2, \mathrm{D}-3\)

Ubiquinone transfer its electron to (a) Complex II (b) Complex I (c) Cytochrome \(\mathrm{c}\) (d) Matrix

Which of the following is correct about cytochrome? (a) Small protein attaches to the outer surface of inner membrane of mitochondria. (b) Act as mobile carrier. (c) Transfers electron between complex III and IV. (d) All the above

1 molecule of NADH gives rise to molecules of ATP, while 1 molecule of FADH \(_{2}\) gives molecule of ATP (a) 3,2 (b) 2,3 (c) 2,2 (d) 3,3

\(\mathrm{O}_{2}\) acts as (a) Terminal hydrogen acceptor (b) Terminal electron acceptor (c) Both (a) and (b) (d) None of these

Which type of phosphorylation occurs in mitochondria? (a) Oxidative phosphorylation (b) Substrate level phosphorylation (c) Photophosphorylation (d) Both (a) and (b)

How many molecules of ATP are produce by oxidation of 1 molecule of glucose? (a) 30 (b) 36 (c) 4 (d) 40

Which of the following is incorrect about fermentation? (a) It accounts for the partial breakdown of glucose. (b) Net gain is only 2 ATP. (c) The NADH to NAD \(^{+}\) formation reaction is vigorous. (d) It occurs in cytoplasm.

Respiratory pathway is best defined as (a) Catabolic pathway (b) Anabolic pathway (c) Amphibolic pathway (d) None of these

Glycerol enters the respiratory pathway at (a) Glu-6-phosphate (b) PGA (c) PGAL (d) PEP

Amino acid enters in the respiratory pathway at (a) Kreb's cycle (b) Pyruvate (c) Acetyl CoA (d) Any of these

Fatty acid for entry into Kreb's cycle is degraded to (a) Pyruvate (b) Citric acid (c) Acetyl-CoA (d) PGA

\(\mathrm{RQ}\) for protein is (a) \(0.8\) (b) \(0.7\) (c) \(0.9\) (d) \(0.5\)

Conversion of pyruvic acid into ethyl alcohol is facilitated by (a) Carboxylase (b) Dehydrogenase (c) Decarboxylase and dehydrogenase (d) Phosphatase

Anaerobic respiration takes place in the (a) Mitochondria (b) Cytoplasm (c) Lysosomes (d) ER

What is the total gain of energy during anaerobic respiration? (a) One molecule of ATP (b) Two molecules of ATP (c) Four molecules of ATP (d) Eight molecules of ATP

Cyanide resistant pathway is (a) Anaerobic respiration (b) Aerobic respiration (c) Both (a) and (b) (d) None of these

Energy accumulating in ATP is (a) Disulphide bond (b) Hydrogen bonds (c) High energy phosphate bond (d) Ester bond

In plants, respiration takes place (a) Only in leaves during night (b) Only in leaves during day (c) In all living cells (d) None of these

In both aerobic and anaerobic respiration which same product is formed? (a) Lactic acid (b) Pyruvic acid (c) Citric acid (d) Organic acid

Which of the following is the reverse of photosynthesis? (a) Respiration (b) Protein synthesis (c) Fat synthesis (d) All of these

The process of phosphorylation takes place in (a) Glycolysis (b) Kreb's cycle (c) HMP pathway (d) All of these

Match the given below organelles with their function: Column I Column II A. Kreb's cycle - 1\. Stalked particles of mitochondria B. Photorespiration - 2\. Cytoplasm C. Oxidative phosphorylation - 3\. Peroxisomes D. Glycolysis 4\. Inner surface of membrane of mitochondria (a) \(\mathrm{A}-2, \mathrm{~B}-3, \mathrm{C}-4, \mathrm{D}-1\) (b) \(\mathrm{A}-1, \mathrm{~B}-2, \mathrm{C}-3, \mathrm{D}-4\) (c) \(\mathrm{A}-4, \mathrm{~B}-3, \mathrm{C}-1, \mathrm{D}-2\) (d) \(\mathrm{A}-3, \mathrm{~B}-2, \mathrm{C}-4, \mathrm{D}-1\)

Match the given below organelles with their function: Column I Column II A. Kreb's cycle - 1\. Stalked particles of mitochondria B. Photorespiration - 2\. Cytoplasm C. Oxidative phosphorylation - 3\. Peroxisomes D. Glycolysis 4\. Inner surface of membrane of mitochondria (a) \(\mathrm{A}-2, \mathrm{~B}-3, \mathrm{C}-4, \mathrm{D}-1\) (b) \(\mathrm{A}-1, \mathrm{~B}-2, \mathrm{C}-3, \mathrm{D}-4\) (c) \(\mathrm{A}-4, \mathrm{~B}-3, \mathrm{C}-1, \mathrm{D}-2\) (d) \(\mathrm{A}-3, \mathrm{~B}-2, \mathrm{C}-4, \mathrm{D}-1\)

The energy yielded as a result of total oxidation of one glucose molecule during cellular respiration is to convert (a) 34 molecules of ADP into 34 molecules of ATP (b) 30 molecules of ADP into 30 molecules of ATP (c) 36 molecules of ADP into 36 molecules of ATP (d) 32 molecules of ADP into 32 molecules of ATP

The connecting link among glycolysis, Kreb's cycle and beta-oxidation of fatty acid is (a) Pyruvic acid (b) Acetyl-CoA (c) Acetaldehyde (d) Citric acid

Which of the following is the source of respiration? (a) Stored food (b) RNA (c) DNA (d) ATP

Select the incorrect statement: (a) Plants have no special system for breathing or gaseous exchange. (b) Acetyl-CoA enter in TCA cycle running in matrix of mitochondria. (c) The RQ depends upon the type of respirarory substance used during respiration. (d) In fermentation, the complete oxidation of glucose occur in some bacteria.

The aerobic respiration yields (a) \(8 \mathrm{NADH}_{2}, 2 \mathrm{FADH}_{2}, 2 \mathrm{ATP}\) (b) \(10 \mathrm{NADH}_{2}, 2 \mathrm{FADH}_{2}, 38 \mathrm{ATP}\) (c) \(12 \mathrm{NADH}_{2}, 30 \mathrm{ATP}, \mathrm{H}_{2} \mathrm{O}\) (d) \(10 \mathrm{NADH}_{2}, 2 \mathrm{FADH}_{2}, 2 \mathrm{GTP}, 2 \mathrm{ATP}\)

How many ATP are used/required in glycolysis or for the complete phosphorylation of a glucose molecule? (a) 4 (b) 2 (c) 6 (d) 8

Isomerization takes place in (a) Glycolysis (b) Kreb's cycle (c) Oxidative phosphorylation (d) None of these

In cellular respiration, \(\mathrm{O}_{2}\) is used as a final receptor of (a) ATP and NADH (b) \(\mathrm{H}\) and e- (c) \(\mathrm{Fe}\) (d) Cytochrome

The first stage in respiration is (a) Aerobic oxidation of pyruvic acid (b) Liberation of \(\mathrm{CO}_{2}\) (c) Glycolysis (d) Electron transport system