To discuss:
The difference between primary and secondary active transport.
Introduction:
Cellular membrane, nucleus, and cytoplasm are the three major components of a cell. Cellular membrane, which surrounds the entire cell, is composed of phospholipids and proteins. Peripheral proteins are generally found on the membrane surface and are temporarily attached to one face of the plasma membrane. Membrane proteins that traverse the entire cell membrane alone can serve as a membrane channel. A membrane channel aids in the transfer of solutes from one side of the cell membrane, which is selectively permeable, to the other side of the membrane. Such integral proteins are called as transmembrane proteins. Carriers are transmembrane proteins present in the plasma membrane, which facilitates the transfer of substances, including electrolytes and glucose.
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ANATOMY & PHYSIOLOGY: THE UNITY OF FORM
- Briefly explain why each of the following statements is false, or reword it to make it true.1. If a cell were poisoned so it could not makeATP, osmosis through its membrane wouldceasearrow_forwardTrue or False.arrow_forwardwhich portion of phosphatidylinositol molecules contribute to the fluidity of the molecule and polarity of the bilayerarrow_forward
- The reason why nondividing cells like liver cells the flow of membrane between compartments should be balanced so that the retrieval pathways match the outward flow.arrow_forwardThe tendency of molecules (particles) to extend or spread out from a region of higher concentration to a region of lower concentration. active transport diffusion facilitated diffusion osmosisarrow_forwardThe movement of water through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concnetration is called _________ osmosis diffusion solubility gradientarrow_forward
- Briefly explain why each of the following statements is false, or reword it to make it true.3. A cell’s second messengers serve mainly to transport solutes through the membrane.arrow_forwardEffect of hypo, hyper and isotonic solutions in animal and plant cells and including the terms plasmolysis, hemolysis, turgor pressurearrow_forwardTrue or False: Passive-mediated transport proteins lower the delta G of transport to create the movement of molecules or ions.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning