ATP molecules originate during glucose breakdown by various processes such as glycolysis, cellular respiration , and fermentation. Glycolysis and fermentation take place in the cytoplasm of the cell while cellular respiration takes place in the mitochondrial matrix. NADH and FADH 2 are the two molecules that originate in the mitochondrial matrix by cellular respiration or Kreb’s cycle Acetyl Coenzyme-A molecule followed by Kreb’s cycle originates in the cytosol and enters into the mitochondria through mitochondrial membrane.

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 8, Problem 5MC

Summary Introduction

Introduction:

ATP molecules originate during glucose breakdown by various processes such as glycolysis, cellular respiration, and fermentation. Glycolysis and fermentation take place in the cytoplasm of the cell while cellular respiration takes place in the mitochondrial matrix. NADH and FADH2 are the two molecules that originate in the mitochondrial matrix by cellular respiration or Kreb’s cycle Acetyl Coenzyme-A molecule followed by Kreb’s cycle originates in the cytosol and enters into the mitochondria through mitochondrial membrane.

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Which of the following statements concerning ATP synthesis in mitochondria is FALSE? a. interruption of the flow of electrons from NADH to oxygen would decrease ATP synthesis b. making the inner mitochondrial membrane permeable to H+ would decrease ATP synthesis c. the energy liberated by the electron-transport chain is used to pump H+ ions into the IM-space d. the movement of H+ through a special channel enzyme (synthase) results in ATP synthesis e. when protons move from the matrix to the IM-space, ATP is made from ADP + Pi

Which of the following statements is NOT true about Krebs Cycle? a. Krebs cycle is composed of 8-step enzymatic reactions. b. For every CO2 released in the cycle, NADH is produced. c. Succinyl-CoA allows the phosphorylation of GDP (Guanosine Diphosphate) d. The carbon atoms from the glucose that enters the cycle are released from the mitochondrion immediately.

Which of the following is produced in the intermembranespace of mitochondria?a. ATPb. a high concentration of H+c. NADH and FADH2d. acetyl CoA

Answer 2

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 8, Problem 5MC

Summary Introduction

Introduction:

ATP molecules originate during glucose breakdown by various processes such as glycolysis, cellular respiration, and fermentation. Glycolysis and fermentation take place in the cytoplasm of the cell while cellular respiration takes place in the mitochondrial matrix. NADH and FADH2 are the two molecules that originate in the mitochondrial matrix by cellular respiration or Kreb’s cycle Acetyl Coenzyme-A molecule followed by Kreb’s cycle originates in the cytosol and enters into the mitochondria through mitochondrial membrane.

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Answer 3

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Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 8, Problem 5MC

Summary Introduction

Introduction:

ATP molecules originate during glucose breakdown by various processes such as glycolysis, cellular respiration, and fermentation. Glycolysis and fermentation take place in the cytoplasm of the cell while cellular respiration takes place in the mitochondrial matrix. NADH and FADH2 are the two molecules that originate in the mitochondrial matrix by cellular respiration or Kreb’s cycle Acetyl Coenzyme-A molecule followed by Kreb’s cycle originates in the cytosol and enters into the mitochondria through mitochondrial membrane.

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Answer 4

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 8, Problem 5MC

Summary Introduction