In aerobic respiration, total number of ATP molecules formed from 1 glucose molecule is

• 28

• 32

• 36

• 30

Which of the following cartoon characters does not share its name with that of a gene

• Tintin

• Popeye

• Asterix

• Obelix

73.

After glycolysis, fate of glucose in mitochondrial matrix is

• oxidation

• reduction

• oxidative decarboxylation

• hydrolysis

The enzyme decarboxylase catalyses the following step

• conversion of citric acid to cis aconitic acid

• fumaric acid to malic acid

• oxalosuccinic acid to $\mathrm{\alpha }$- ketoglutaric acid

• malic acid to oxaloacetic acid

Which ofthe following is true regarding the given electron transport chain?

CoQ $\to$Cyt c $\to$Cyt aa₃ $\to$O₂

• CoQ $\to$Cyt c is H⁺ absorbing site

• aa₃ $\to$O₂, H⁺ yielding site

• CoQ $\to$Cyt c is H⁺ yielding site and aa₃ $\to$O₂ is H⁺ absorbing site

• No H⁺ is absorbed or released

Assertion: Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids.

Reason: Photolysis of water takes place in inner membrane of thylakoid.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Assertion : Glycolysis is the first step of respiration in which glucose completely breaks into CO₂ and H₂O.

Reason : In this process, there is net gain of twenty four molecules of ATP.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false

Which of the following is the connecting link between glycolysis and Krebs cycle?

• Acetyl Co- A

• Oxalosuccinic acid

• Pyruvic acid

• Citric acid

Assertion: F_i particles are present in the inner mitochondrial membrane.

Reason: An electron gradient formed on the inner mitochondrial membrane, forms ATP.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Biological oxidation in Krebs cycle involves :

• O₂

• N₂

• CO₂

• SO₂