0
What else can I help you with?
Do plant cells also have a cell membrane around the cytoplasm?
yes..in fact they do. cytoplasm is a gelitanlike substance inside a cell membrane and a cell membrane is inside a cell wall
How are vesicles typically formed?
chemical energy that is contained in and transported by the molecule called (ATP) Adenosin Tri Phosphate.
What is exchange of gas?
This is when the red blood cells , sent from the heart, pass through the alveoli and the breathed in oxygen is diffused into the cell and carbon dioxide is diffused out. The cells then travel around the body in the blood vessels where the oxygen is needed, before returning to the heart in the veins. The red blood cells have a substance in them called haemoglobin . When the red blood cells pick up oxygen in the lungs, it becomes oxhaemoglobin
Cell membrane that forms a pouch around a substance?
The process you are referring to is called endocytosis. During endocytosis, the cell membrane invaginates to surround a substance, creating a vesicle or pouch. This allows the cell to take in nutrients or other substances from its surroundings.
What is it called when a part of a cell membrane closes around a molecule to allow the molecule to enter the cell?
This is called endocytosis.
How was Buddhism diffused?
Buddha had disciples and after he died, they started teaching other people while traveling around. Then the disciples taught more disciples and it spread from there.
When a cell membrane actively surrounds a solid substance and forms a vesicle which moves into the cell this is called what?
This process is known as endocytosis, specifically phagocytosis if the solid substance being engulfed is a large particle or bacterium. Endocytosis involves the cell membrane wrapping around the substance to form a vesicle that is then internalized into the cell.
When materials enter the cell by passive or active transport these materials literally cross through the cell membrane can the same be said of materials that enter the cell by phagocytosis?
Yes, materials that enter the cell by phagocytosis also cross through the cell membrane, but in a different manner compared to passive or active transport. In phagocytosis, the cell membrane engulfs large particles or microorganisms, forming a vesicle that brings these materials into the cell. This process involves the membrane folding around the substance rather than allowing it to pass through like smaller molecules do in passive or active transport.
Why would a substance not be able to pass through a membrane by diffusion?
Water cannot diffuse a plasma membrane because of the fact that the phosphate heads of the phospholipids are hydrophilic, the hydrocarbon tails of the phospholipids are hydrophobic, meaning they repel water. The bilayer phospholipid model of the plasma membrane shows that the phophates face outward on either side of the membrane and the lipid tails are in the middle of the bilayer.
How do molecules that are too large to cross the membrance enter into the cell?
Large molecules can enter a cell through endocytosis, where the cell membrane folds around the molecule, forms a vesicle, and brings it into the cell. This process allows the cell to take in nutrients, signaling molecules, and other substances that are too large to pass through the membrane directly.
What is the process by which large molecules enter a cell through pouches in the membrane?
The process by which large molecules enter a cell through pouches in the membrane is called endocytosis. During endocytosis, the cell membrane forms a pouch around the molecule, encloses it, and brings it into the cell as a vesicle. This allows the cell to take in larger molecules that would not be able to pass through the membrane on their own.
What is the role of transport proteins within the plasma membrane?
The membranes around cells and even around some organelles do not allow much to go in and out. If the substance is too large, it can't move in without help. If the charge is 'incorrect', it needs help as well.
