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Does the process of exocytosis require energy?

Yes, the process of exocytosis does require energy. During exocytosis, vesicles containing molecules are transported to the cell membrane and released outside the cell. This process requires energy in the form of ATP to power the movement of the vesicles and the fusion of the vesicle membrane with the cell membrane.


Transport chain series of proteins embedded in a membrane along which energized electrons are transported as electrons are passed from molecule energy is released?

The electron transport chain is a series of protein complexes embedded in the inner mitochondrial membrane. As electrons pass through this chain, energy is released and used to pump protons across the membrane, creating an electrochemical gradient. This gradient is then used by ATP synthase to generate ATP, the main energy source for cellular functions.


A vacuole carrying waste materials from a cell fuses with the inside surface of the cell's plasma membrane the waste materials are then released to the medium outside of the cell?

This process is called exocytosis. During exocytosis, the vacuole fuses with the plasma membrane, forming a temporary pore through which the waste materials are expelled outside of the cell. This allows the cell to eliminate waste and maintain homeostasis within its internal environment.


Active transport process by which materials are secreted or expelled from a cell?

Exocytosis is the active transport process by which materials are packaged into vesicles and then released from a cell. During exocytosis, the vesicle membrane fuses with the cell membrane, allowing the contents to be discharged outside the cell.


How do membrane-moderated systems work?

Drug molecules can only be released when it passes through the rate-controlling membrane. This membrane has a defined drug permeability property and it is either a microporous or a non-porous polymeric membrane. The drug solids are either dispersed in a solid polymer matrix or suspended in a liquid medium when they are in the drug reservoir compartment. A layer of drug compatible bioadhesive membrane is added to the outer surface of the polymeric membrane to increase contact between the skin and the transdermal therapeutic system. To control the drug release rate, the thickness of the membrane, the thickness of the adhesive, the composition of the polymer, and the permeability coefficient can be varied.


What are released hormones?

In animals by endocrine system.They are transported by blood.


In exocytosis, the membrane package fuses with?

The cell membrane fuses with the membrane package in exocytosis.


How do you teach them not to run away from you just to stay near by?

Exocytosis -- Macromolecules that are released don't simply drift towards the cell's membrane and squeeze their way out. They are actually packaged in a vesicle that separates them out from the rest of the cell. The vesicle fuses with its specific membrane structure and its contents are released without the vesicle, which is incorporated back into the cell's membrane. Proteins, for example, that are to be secreted from the cell are made on the rough endoplasmic reticulum (ER). They are then transported to the Golgi complex by ER induced vesicles. The Golgi complex sorts and packages the proteins into vesicles that separate themselves off the Golgi complex and eventually fuse with the cellular membrane.


Where do proteins travel to get modified packaged and secreted?

Many proteins must be chemically folded into an active tertiary structure. The protein must be transported to where it will function. Sometimes the protein must move out of the cell, as in the case of hormones such as insulin. In such case, a small membrane vesicle contains the protein fuses with the cell membrane. The protein is than released outside and the proteins that are destined to become a part of membrane are made on ribosomes that are bound to the endoplasmic reticulum.


How do larger molecules move across epithelial membranes in the capillaries?

Larger molecules can cross epithelial membranes in capillaries through processes like transcytosis, where the molecule is taken up by the cell on one side and transported across the cell to be released on the other side. This process often involves vesicles that transport the molecule across the cell.


What are the two major types of active transports?

The two major parts of active transport are endocytosis and exocytosis. Endocytosis is taking material into the cell by means of infoldings in the cell membrane. There are two types of endocytosis: phagocytosis (large molecules) and pinocytosis (small molecules). Exocytosis is the release of materials from a cell. The vacuole membrane and the cell membrane fuse together and the contents are released.


What are the two types of active transport?

The two major parts of active transport are endocytosis and exocytosis. Endocytosis is taking material into the cell by means of infoldings in the cell membrane. There are two types of endocytosis: phagocytosis (large molecules) and pinocytosis (small molecules). Exocytosis is the release of materials from a cell. The vacuole membrane and the cell membrane fuse together and the contents are released.