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: None

A: Lets give it a try. Based on what I understand. Based on the detailed description of each experiment…

Q: O A male guinea pig that has long, orange fur mated with a female guinea pig that has short, black…

A: A gene refers to the heredity unit. It comprises all the genetic instructions to produce proteins.…

Q: How do the pumps and channels differentiate between sodium and potassium ions to selectively move…

A: The controlled movements of ions into and out of cells and organelles are essential for all life as…

Q: Identify the polar, inorganic molecule which can pass freely through the plasma membrane. CH3CH2OH…

A: The plasma membrane is composed of a network of phospholipids and proteins that separate the…

Q: apoptosis

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

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

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

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: How does the sodium- potassium pump present in the cell membrane work? What is the importance of…

A: Plasma membrane is the semipermeable that allows the selective substances to move in and out of the…

Q: Contrast how transmembrane proteines and membrane anchored proteins associate with the membrane?

A: Plasma membrane  Plasma membrane found in all living organisms. It is a semipermeable membrane that…

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: List three types of movment displayed by molecules in the plasma membrane. Which type of molecule is…

A: Plasma membrane is a phospholipid bilayer. It acts as a barrier between the interior and the…

Q: Why are ion channels necessary to transport ions into or out of a

A: The plasma membrane is the external covering of a cell that separates as well protects its internal…

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: By which pathway do cells bring in extracellular fluid?

A: Extracellular fluids are mainly combination of cations and anions. Plasma mostly is water and has…

Q: Proteins which are only on one side of the plasma membrane and may not interact with the…

A: The Proteins which are only on one side of the plasma membrane and may not interact with the…

Q: What is Plasma Membrane Receptors?

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

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: Which cellular organelles are not membrane bound?

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

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 does a cell ‘know’ that a protein should move to the endoplasmic reticulum

A: The endoplasmic reticulum (ER), which also performs numerous other critical tasks like folding…

Q: In the plasma membrane, proteins carry out the following tasnks except ONE:

A: Plasma membrane  Plasma membrane of a cell is a boundary between the cell atmosphere to the outside…

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: c) Figure 3 shows how materials are actively transported across plasma membrane. Extracellular…

A: Process X is- ENDOCYTOSIS Process Y is-EXOCYTOSIS

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: How are membrane formed? What composes them?

A: Phospholipid is the main part of the biological membrane and it is an amphipathic molecules that is…

Q: What is the difference between the protein chain (amino acids) of proteins that end up in the ER…

A: The endoplasmic reticulum (ER) is a network of membrane-enclosed tubules and sacs (cisternae)…

Q: How does the function of the rough endoplasmic reticulum differ from that of the smooth endoplasmic…

A: The endoplasmic reticulum is an organelle with a continuous double-layered structure that is present…

Q: How does the plasma membrane maintain homeostasis?

A: All the cells have a plasma membrane as the boundaries of the cytoplasm.

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.