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Botany MCQs for NEET — Practice Questions with Answers

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ATP synthase is

What is not true?

A. Complex V B. Made up of two major components F0 and F1 C. F1 headpiece is a peripheral membrane protein complex and has catalytic site D. F0 is an integral membrane protein complex that forms the channel through which protons move from matrix to inter membrane space

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Explanation

Page number-234

14.4 Electron Transport System (ETS)

14.4.2 Electron Transport system (ETS) and Oxidative Phosphorylation

Respiration In Plants

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Which of the following gradient is observed in ETS?

A. Chemical B. Electrical C. Osmotic D. Electrochemical

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Explanation

Page number-234

14.4 Electron Transport System (ETS)

14.4.2 Electron Transport system (ETS) and Oxidative Phosphorylation

Respiration In Plants

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Which of the following is not the assumption considered to finalize the balance sheet of respiration?

A. There is sequential, orderly pathway functioning with one substrate forming the next and with glycolysis following TCA and Then ETS pathway B. The NADH synthesized in Glucolysis is transferred into the mitochondria and undergoes Oxidative Phosphorylation C. No anabolism from respiratory intermediates. D. Glucose, Proteins and Fats are being respired altogether.

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Explanation

Page number-234

14.5 The Respiratory Balance Sheet

Respiration In Plants

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During Aerobic respiration, one molecule of Glucose gives

A. A net gain of 38 ATPs B. Production of 38 ATPs C. Production of 32 ATPs D. Production of 36 ATPs

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Explanation

Page number-234

14.5 The Respiratory Balance Sheet

Respiration In Plants

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Which of the following statements is incorrect?

A. Glucose is the favoured substrate for respiration B. All carbohydrates are usually first converted into glucose before they are used for respiration C. Other respiratory substrates are also respired but they do not enter the respiratory pathway at very first step D. Fats directly enter the respiratory pathway

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Explanation

Page number-235

14.6 Amphibolic Pathway

Respiration In Plants

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Glycerol and Fatty acids are the result of breaking down of Fats:

A. Fatty acids enter at the step of formation of BPGA B. Fatty acids enter as acetyl CoA C. Fatty acids enter as PGAL D. Fatty acids enter as Pyruvate

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Explanation

Page number-235

14.6 Amphibolic Pathway

Respiration In Plants

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Glycerol and Fatty acids are the result of breaking down of Fats:

A. Fatty acids enter at the step of formation of BPGA B. Glycerol enter as acetyl CoA C. Glycerol enter as PGAL D. Fatty acids enter as Pyruvate

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Explanation

Page number-235

14.6 Amphibolic Pathway

Respiration In Plants

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The individual amino acid enter the respiratory pathway at

A. Within Krebs’ cycle B. As Pyruvate or Acetyl CoA C. As PGAL D. Both A and B

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Explanation

Page number-235

14.6 Amphibolic Pathway

Respiration In Plants

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For the synthesis of Fatty acids, which of the following substrates will be used?

A. Acetyl CoA B. PGAL C. BPGA D. Pyruvic Acid

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Explanation

Fatty acid synthesis is the creation of fatty acids from acetyl-CoA and NADPH through the action of enzymes called fatty acid synthases. Most of the acetyl-CoA which is converted into fatty acids is derived from carbohydrates via the glycolytic pathway

Page number-235

14.6 Amphibolic Pathway

Respiration In Plants

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Respiratory Quotient

A. Some Ratio B. Some amount of oxygen C. Some amount of carbon dioxide D. Cannot be one

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Explanation

Page number-236

14.7 Respiratory Quotient

Respiration In Plants

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