The reason for the rotation of c subunits of ATP synthase. Concept introduction: ATP (adenosine triphosphate) is the energy source in the human body. It is formed in mitochondria, due to this mitochondria is also termed as the powerhouse of the cells. ATP contains three highly energetic phosphate groups. When any kind of energy consuming activity is performed by the body, then these phosphate groups get hydrolyzed from ATP, yielding a large amount of energy.

Question

At a pH equal to the isoelectric point (pl) of alanine, the net charge of alanine is zero. Two structures can be drawn that have a net charge of zero, but the predominant form of alanine at its pl is zwitterionic. CH3 H,N CH3 ** H¸N-C H Zwitterionic H Uncharged OH Select statements that explain why alanine is predominantly zwitterionic at its pl. pk of alanine's amino group is more than its pl. pk of alanine's carboxyl group is more than its pl. PK of alanine's carboxyl group is less than its pl. pk of alanine's amino group is less than its pl. Correct Answer What fraction of alanine is in the completely uncharged form at its pl? 1 in 2.2 × 107 1 in 1.6 × 10² 1 in 4680 1 in 9460

Answer 1

Question

Chapter 18, Problem 28P

Interpretation Introduction

Interpretation:

The reason for the rotation of c subunits of ATP synthase.

Concept introduction:

ATP (adenosine triphosphate) is the energy source in the human body. It is formed in mitochondria, due to this mitochondria is also termed as the powerhouse of the cells. ATP contains three highly energetic phosphate groups. When any kind of energy consuming activity is performed by the body, then these phosphate groups get hydrolyzed from ATP, yielding a large amount of energy.

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At a pH equal to the isoelectric point (pl) of alanine, the net charge of alanine is zero. Two structures can be drawn that have a net charge of zero, but the predominant form of alanine at its pl is zwitterionic. CH3 H,N CH3 ** H¸N-C H Zwitterionic H Uncharged OH Select statements that explain why alanine is predominantly zwitterionic at its pl. pk of alanine's amino group is more than its pl. pk of alanine's carboxyl group is more than its pl. PK of alanine's carboxyl group is less than its pl. pk of alanine's amino group is less than its pl. Correct Answer What fraction of alanine is in the completely uncharged form at its pl? 1 in 2.2 × 107 1 in 1.6 × 10² 1 in 4680 1 in 9460

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