The brush border enzymes of the small intestine and their functions. Introduction: Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

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Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

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Answer 2

Question

Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

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Answer 3

Question

Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

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Answer 4

Question

Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

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Answer 5

Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

Answer 6

Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

Answer 7

Chapter 25.5, Problem 5AYLO

Summary Introduction

To discuss:

The brush border enzymes of the small intestine and their functions.

Introduction:

Microvilli are a type of internal projections in the small intestine. These are smaller extensions of the plasma membrane that forms a brush border on every enterocyte’s surface. Brush border enzymes are present in the plasma membrane that carry out the final stages of the digestion process. These enzymes are not secreted into the lumen, so chyme reaches the brush border for digestion. This activity is known as contact digestion. This increases the surface area by a factor of 20.

Answer 8

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Answer 11

Ch. 25.1 - Prob. 1BYGO Ch. 25.1 - Prob. 2BYGO Ch. 25.1 - Prob. 3BYGO Ch. 25.1 - Prob. 4BYGO Ch. 25.1 - Prob. 1AYLO Ch. 25.1 - The difference between the digestive tract and the...Ch. 25.1 - Prob. 3AYLO Ch. 25.1 - Prob. 4AYLO Ch. 25.1 - Prob. 5AYLO Ch. 25.1 - Prob. 6AYLO

Solution Summary: The author explains the three types of brush border enzymes in the small intestine and their role in digestion.

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