The theories are: 1. The Chemical Coupling Theory 2. The Conformational Coupling Theory 3. The Chemiosmotic Theory 4. Binding-Change Mechanism of ATP Synthesis Theory. Mechanism of Energy Transduction: Theory # 1. The Chemical Coupling Theory: Slater (1953) originally suggested that during the oxidation of a component of electron transport chain, the energy released is trapped by the formation of a [...]
The following points highlight the three main theories regarding ascent of sap. The theories are: 1. Vital-Force Theory 2. Root-Pressure Theory 3. Physical-Force Theory. Theory # 1. Vital-Force Theory: These theories state that the vital capacity of the living cells is responsible for the ascent of sap. Living cells like xylem parenchyma and ray cells remain intimately associated with the [...]
In this article we will discuss about Phloem Transport. After reading this article you will learn about: 1. Mechanism of Phloem Transport 2. Factors Affecting Phloem Transport. Mechanism of Phloem Transport: The mechanism of long-distance transport through the sieve tube is soundly based on the internal organization of sieve tubes, without which it remains speculative. Phloem tissue is composed of [...]