Why can nitrogen cross the membrane via diffusion through the bilayer and while protons require a protein?

Q: Under what environmental conditions does water move into a cell byosmosis?

A: Osmosis is a spontaneous movement of molecules (solvents) through a semipermeable membrane into an…

Q: Knowing that there is constant turnover of phospholipids in a cell’s membrane and that new…

A: A cell bilayer membrane is made of two layers that surround the cell and face each other, each layer…

Q: Liver cells are packed with glucose. If the concentration of glucose in a liver cell is higher than…

A: The liver is an organ just found in vertebrates which detoxifies different metabolites, incorporates…

Q: What membrane component is represented by A in the diagram? a) cholesterol b) lipid bilayer Oc)…

A: Plasma membrane is the outermost envelope like structure which surrounds the cell and organelles.…

Q: If magnesium ions are in higher concentration outside the cell, they would move into the cell by the…

A: Movement across the membrane happens through two pathways. Active mechanism and passive mechanism.…

Q: Draw and label a cell lipid bilayer and diagram how the following transport processes take place:…

A: Plasma membrane is the outermost covering in all the cells that regulates the movement of molecules…

Q: hen transpeptidation is inhibited by beta-lactam antibiotics, bacteria can still synthesize…

A: The transpeptidation reaction in bacteria occurs in two steps, the first is the formation of a…

Q: Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in…

A: The cells are the basic structures found in all living organisms with viruses and viroids being the…

Q: What is mass transportation across the cell membrane?

A: Cellular transport is the molecular movement from one side to another side of the cell.

Q: Cholesterol can be packaged into droplets using LDL (low density lipoprotein). Cells that need to…

A: Lipids, are organic compounds which are insoluble or poorly soluble in water. They are readily…

Q: 3)What is the second type of lipid that plays a major role in the plasma membrane? This lipid does…

A: The plasma membrane of the cell regulates the transportation of different molecules in and out of…

Q: A section of a cell membrane Is shown in the diagram below. CELL MEMBRANE Low Concentration of…

A: Osmosis is defined as solvent movement across a semipermeable membrane from a low concentration to a…

Q: Endocytosis and exocytosis are both forms of [ ACTIVE / PASSIVE ] transport that [ DO / DO NOT ]…

A: A subfield of biology called cell biology examines the composition, operation, and behavior of…

Q: Which of the following molecules would you expect to diffuse through the lipid bilayer of a plasma…

A: Large molecules like Glucose, starch, and amino acid, requires transmembrane carrier proteins to…

Q: Which type of endocytosis involves the binding of specific substancesin the extracellular fluid to…

A: The cells move the excess of the materials from the external environment to the cell’s cytoplasm  by…

Q: Determine whether each of the following items are characteristic of either facilitated diffusion,…

A: Membrane transport refers to the movement of molecules or ions across cell membranes. Cell membranes…

Q: Why is the structure of the plasma membrane considered to be a fluid-mosaic model?

A: Plasma membrane, also known as the cell membrane is the outermost layer of the cell that separates…

Q: These proteins are integral membrane proteins that serve as passages for hydrophilic molecules?

A: Integral membrane transport proteins are a class of proteins that span the lipid bilayer of cell…

Q: You are studying a transport protein. It appears to bind temporarily to the molecule to be…

A: 1. ANSWER;- This is an example of facilitated diffusion. The molecule is a competitive inhibitor.…

Q: a hydrophob n't have to c salt water c) What part membrane?

A: Cells are the functional units of life. Cells are also the structural blocks of life. Cells are…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.