What are the two types of facilitated diffusion and what is an example of each? What specific structures and/or characteristics make biological membranes differentially permeable and why is it necessary for the membranes of living cells to be differentially permeable?
Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration whereas osmosis is the movement of a solvent such as water from an area of low solute concentration to an area of high concentration o...
Describe the transport functions of the placenta: A. Simple dissemination B. Facilitated transport C. Active transport What type of transport is used during glucose reabsorption? Provide examples about the difference between active and passive transport across the plasma membrane in the human ...
Single receptor molecules might cluster during this diffusion in two dimensions, as a conse- quence of the multivalence of the virion. This can increase the avidity of the interaction, and, at the same time, slow down the speed of diffusion, i. e., the virus would collect several ...
This study investigates the wake interaction of four full-scale three-bladed tidal turbines with different ambient turbulence conditions, in straight and yawed flows. A three-dimensional unsteady Lagrangian Vortex Blob software is used for the numerical
Thereby, with anhydrobiosis the cytoplasmic viscosity increases, the diffusion of water and O2 is suppressed, and the rates of all possible chemical reactions are dramatically reduced. In other words, cells of desiccation-tolerant organisms undergo the transition from the “liquid state” to the “...
According to Rogers (1995), the five stages critical in a product’s development incorporate, “knowledge, persuasion, decision, implementation and confirmation”. He argues that the tipping point originates from diffusion theory, which is a set of generalizations that aid the spread of innovations...
For infection, viruses deliver their genomes into the host cell. These nucleic acids are usually tightly packed within the viral capsid, which, in turn, is