How do proteins that are destined for secretion out of the cell (e.g. hormones) travel from the ER lumen to the plasma membrane?

Q: Why is the inner membrane so highly folded?

A:

Q: apoptosis

A: Apoptosis Apoptosis is  a cell death which is done in a programmed manner. It is triggered by…

Q: State the Transport Across a Cell Membrane ?

A: Plasma membrane is a bilipid layer that is chiefly composed of amphipathic phospholipids. The head…

Q: Why are the activities in the lysosome best partitioned awayfrom the cytoplasm proper?

A: A cell is the basic structural and functional key of life. A cell has multiple organelles that carry…

Q: What is the function of Integral membrane proteins?

A: Introduction:- Integral membrane proteins are found in the bilayer membranes that surround cells and…

Q: How is transport mechanism vital in a cell?

A: The transport mechanism is the transfer of chemicals into or out of a cell across the cell membrane.…

Q: The region labeled with the arrow in the accompanying electron micrograph of the plasma membrane is…

A: The arrow points to the hydrophobic layer of the cell (plasma) membrane.

Q: Describe how proteins are anchored within the plasma membrane.

A: Plasma membrane is a cell membrane, bilayer structure that allows the transport of substances into…

Q: Describe the structure and the function of the plasma membrane.

A: The membrane that isolates the cell's contents from the outer environment is known as the cell…

Q: Vacuoles are fluid-filled organelles present in some cells.Which function is NOT normally…

A: A cell can be outlined as the cytoplasmic mass that is surrounded by a lipid bilayer known as a…

Q: Why are the ions Na+ and Cl- not able to cross the plasma membrane?

A: The plasma membrane, also called the cell membrane, is the membrane found in all cells that…

Q: What characteristic of the plasma membrane isresponsible for maintaining the differences…

A: The plasma membrane is comprised of both lipids and proteins. It is an amphipathic structure because…

Q: How do tiny nonpolar molecules cross the plasma membrane.

A: Plasma membrane has hydrophilic neagatively charged phosphate group and hydrophobic tail region.

Q: What factors stiffen the plasma membrane? What makes it more fluid?

A: The plasma membrane is the outer covering of the cell that separates the internal cellular…

Q: What can change the fluidity and viscosityof the plasma membrane?

A: The cell is surrounded by a protective cell membrane, which is composed of the phospholipid bilayer.

Q: Is glucose into the cell facilitated diffusion or active transport

A: Glucose cannot diffuse directly into cells but enters by a transport mechanisms: Na+ -independent,…

Q: What are the structures of the Plasma Membrane?

A: INTRODUCTION Plasma membrane The plasma membrane is also called cell membrane which separate the…

Q: Proteins in the plasma membrane are often the target of medicines.Discuss why you think this is the…

A: The plasma membrane which are present on consist of integral proteins or the peripheral proteins.…

Q: Describe the role of secretory vesicles in the cell.

A: The basic structural and functional unit of organisms, that is, the cell, comprises several…

Q: Describe carrier-mediated transport and vesicular transport processes used by cells to absorb or…

A: Diffusion is a process in which the molecules move from a region of higher concentration to a region…

Q: What is Plasma Membrane Receptors?

A: Cell membrane and plasma membrane are the membrane that help to distinct the interior and exterior…

Q: Can water, carbon dioxide, oxygen and calcium ion can move freely across the plasma membrane?

A: The plasma membrane or cell membrane is primarily composed of a lipid bilayer along with protein and…

Q: How are sodium and potassium ions distributed across the plasma membrane? What creates this…

A: Membrane potential (also transmembrane potential or membrane voltage) is the difference in electric…

Q: What is the plasma membrane and its structure?

A: The cells are the basic structural, biological, and functional unit of all known living organisms.…

Q: Which cellular organelles are not membrane bound?

A: Cell organelles are the structures present inside the cell's cytoplasm and perform certain functions…

Q: (AKS 8a2, DOK 1) Analyzing DNA with a DNA fingerprint developed by gel electrophoresis allows…

A: Gel electrophoresis is the method of separation of molecules by applying an electric field and using…

Q: How does a concentration gradient affect the direction of diffusion across the plasma membrane?

A: DiffusionIt is a physical process where the net movement of molecules from high concentration to low…

Q: How important is the transport of substances inside and outside the cell? What might happen if this…

A: The movement of substances into and out of the cell is known as cellular transport. It allows the…

Q: Can the extent of the reticulum change in different physiological settings? How?

A: The reticulum is a chamber in the alimentary canal of ruminant animals. The ruminant animals include…

Q: What substances can pass freely through the plasma membrane.

A: A biological membrane that forms the boundary between the cytoplasmic contents of the cell from the…

Q: What will happen to a cell if Phagocytosis does not occur in the Endomembrane system?

A: INTRODUCTION  Cell organelles or different compartments such as the nucleus, Golgi body, ER, and…

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.