Chapter 15, Problem 16RQ

a.

Summary Introduction

To determine: The type of transport required for the movement of oxygen across the capillary endothelium.

Introduction: The movement of gaseous substances from a region of high concentration to a region of low concentration is known as diffusion. The membrane of the capillary is permeable to ions and other solutes present in the plasma.

b.

Summary Introduction

To determine: The type of transport required for the movement of proteins across the capillary endothelium.

Introduction: Transcytosis is a type of transport in which large proteins or molecules bind to the certain vesicles present on the cell. These vesicles transport and then release the molecules from one end to another.

c.

Summary Introduction

To determine: The type of transport required for the movement of glucose across the capillary endothelium.

Introduction: Facilitated diffusion and simple diffusion have same properties except for the fact that carrier protein is required in case of facilitated diffusion. Carrier proteins are large and complex proteins. They change their structure to bind and move molecules across the membrane.

d.

Summary Introduction

To determine: The type of transport required for the movement of water across the capillary endothelium.

Introduction: The movement of water from a region of high concentration to a region of low concentration is known as osmosis. The process of osmosis is the same as simple diffusion except for the fact that diffusion is related to small soluble particles and gases, whereas osmosis is related to water.