Facilitated diffusion is the process of molecules moving from a high to low concentration using a channel protein. Facilitated diffusion is based on movement due to a concentration gradient and does not actively use energy. Answer and Explanation: ...
In primary active transport, how do ions move against their concentration gradients? (a) By using proteins that require ATP to function (b) Endocytosis (c) Protein Channels (d) By using osmosis and facilitated diffusion. Osmosis is the diffusion of what substance th...
The movement of gas molecules into the lung upon contraction of the diaphragm and external intercostal muscles occurs by: a. Simple Diffusion b. Bulk flow c. Active transport d. Facilitated diffus Explain the method to find the enthalpy of the product and the reactant in a...
How many mitochondria are in a stomach cell? How does facilitated diffusion enable molecules to cross cell membranes? What are the characteristics of the fluid mosaic model of cell membranes? What is the role of phospholipids in the cell membrane?
The special interest of our studies lies in the fact that we are accumulating such data from the same set of proteins, which will allow a cross-validation of methodologies. Our recent observation that the backbone –NH of Leu-132 provides a H-bond to S2 of the cluster, and that the ...
Phosphorylation of tau is one of the most actively investigated PTMs, with significant impact on solubility, localization, function, interaction with other proteins and susceptibility to additional PTMs [35,36]. The longest of the ‘classic’ six human tau isoforms (tau40, 2N4R) encompasses ~85...
influenzae proteins and S. pneumoniae vaccine and vaccine-related serotypes; impact upon lung function in children aged ≥6 years; and vaccine safety. Discussion As H. influenzae is the most common bacterial pathogen associated with these chronic respiratory diseases in children, a novel pneumococcal...
The activity enhancement was frequently attributed to facilitated transport, or so-called substrate channeling, where a shorter distance between the coupled enzymes leads to a faster transfer of a newly produced intermediate substrate molecule to the second enzyme. However, the mechanistic understanding ...
Does osmosis use aquaporins? Does osmosis use proteins? Does osmosis occur at equilibrium? Describe what osmosis is? Explain what osmosis is. Describe the process of osmosis. Define osmosis. How do osmosis and simple diffusion work? Does osmosis require transport protein?
Is ATP synthase a passive facilitated diffusion or an active transport? What type of molecule is ATP? Describe ATP synthase with regard to: a) its molecular structure, b) its cell location and function, and c) its specific activity in coupling electron transport to ATP production. ...