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Botany MCQs for NEET — Practice Questions with Answers

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The energy in Respiration is

A. Released in a single step B. Released in multiple step processes and is trapped in the form of ADP C. Released in step wise reactions controlled by ribozymes D. Released in step wise reactions controlled by enzymes and is trapped as ATP

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Explanation

Page number-227

Introduction

Respiration In Plants

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Carbon skeletons produced during respiration is

A. Used as energy source B. Used as precursors for biosynthesis of other molecules in the cell C. Used for synthesis of ATP by ATP synthase D. Used as remanant of biosynthesis of proteins

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Explanation

Page number-226

Introduction

Respiration In Plants

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The plants do not breathe can be justified except

A. Plants do not have sophisticated organs for gaseous exchange B. Each plant part takes care of it's own gas-exchange needs C. There is huge transport of gases from one plant part to another D. Roots, stems and leaves respired at rates far lower than animals do.

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Explanation

Page number-227

14.1 Do Plants breathe

Respiration In Plants

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Which of the following is not correct?

A. Roots, stems and leaves respire at rates far lower than animals do B. Plants do not present great demands for gaseous exchange C. When cells photosynthesis, availability of oxygen is not a problem in these cells since oxygen is released within the cell D. Gases has to diffused over a great distance in large bulky plants

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Explanation

Page number-227-228

14.1 Do Plants breathe

Respiration In Plant

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The complete combustion of glucose

A. Most of which is given out in the form of ATP B. Most of which is given out in the form of heat C. Most of which is given out in the form of NADH D. Most of which is given out in the form of FADH2

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Explanation

Page number-228

14.1 Do Plants breathe

Respiration In Plant

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All the living organisms do have

A. Glycolysis B. TCA C. ETC D. Oxidative Phosphorylation

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Explanation

Page number-227

14.1 Do Plants breathe

Respiration In Plant

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Which of the following is not correct regarding Glycolysis?

A. The word has originated from Greek word-Glycos B. The scheme for glycolysis was given by Gustav Embden, Otto Meyerhof, J Parnas. C. It is also called as EMP pathway D. In all organisms, it is the only process of Respiration

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Explanation

Page number-228

14.2 Glycolysis

Respiration In Plant

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Glycolysis-

Find the wrong one.

A. Occurs in cytoplasm B. Is present in all living organisms C. Partial oxidation of Glucose D. 2C pyruvate is formed as a result of Glycolysis

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Explanation

Page number-228

14.2 Glycolysis

Respiration In Plant

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Plant respiration:

Find the odd one out.

A. Glucose is dervied from the end result of photosynthesis i.e. sucrose B. Invertase acts on sucrose to release out glucose and fructose C. Glucose and sucrose are Phosphorylated in the presence of Hexokinase D. The steps of glycolysis from third step onwards, are same for glucose and fructose

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Explanation

Page number-228-229

14.2 Glycolysis

Respiration In Plant

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If two molecules of sucrose have to be respired, how many molecules of ATP are net gained in aerobic oxidation of glucose?

A. 154 B. 126 C. 132 D. 152

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Explanation

Page number-229

14.2 Glycolysis

Respiration In Plant

Hint: Sucrose=Glucose+Fructose

Fructose enters in glycolysis at 2nd step

Glucose enters in glycolysis at 1st step

Each molecule will undergo glycolysis and Krebs’ Cycle and 38 ATPs are produced per Hexose molecule.

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