The proposed hypothesis for sucrose transport in plant. Introduction: A transporter is a protein that spans the lipid bilayer of plasma membrane and helps molecules, ions, and other solutes to pass through it. Active transport passes the molecules against their concentration gradient. It maintains the internal concentration of solutes that differ in concentration from the environment. It requires hydrolysis of adenosine triphosphate (ATP) to perform work. A co-transporter works in association with an active transporter; it transfers the molecules against their gradient. These molecules diffuse through the co-transporter along with another molecule that is against their concentration gradient.

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Chapter 7, Problem 8TYU

(a)

Summary Introduction

To explain: The proposed hypothesis for sucrose transport in plant.

Introduction:

A transporter is a protein that spans the lipid bilayer of plasma membrane and helps molecules, ions, and other solutes to pass through it. Active transport passes the molecules against their concentration gradient. It maintains the internal concentration of solutes that differ in concentration from the environment. It requires hydrolysis of adenosine triphosphate (ATP) to perform work. A co-transporter works in association with an active transporter; it transfers the molecules against their gradient. These molecules diffuse through the co-transporter along with another molecule that is against their concentration gradient.

(b)

Summary Introduction

To explain: The result of adding an inhibitor of ATP regeneration in the solution.

Introduction:

A transporter is a protein that spans the lipid bilayer of plasma membrane and helps molecules, ions, and other solutes to pass through it. Active transport passes the molecules against their concentration gradient. It maintains the internal concentration of solutes that differ in concentration from the environment. It requires hydrolysis of adenosine triphosphate (ATP) to perform work. A co-transporter works in association with an active transporter; it transfers the molecules against their gradient. These molecules diffuse through the co-transporter along with another molecule that is against their concentration gradient.

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