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How does a large particle leave a cell by a active transport?
It requires energy, and a protein carrier molecule. The large particle binds to the protein carrier on the inside of the cell. It is then transported across the membrane as a result of a conformational change in the protein (think of it flipping), and then it is released on the outside of the cell. Again, this requires some source of energy.
Do alpha particles consist of two protons and two neutrons?
No. A beta particle is either an electron (beta-) or a positron (beta+). An alpha particle consists of 2 protons and 2 nuetrons bound together. It's actually a helium-4 nucleus that has been emitted as a result of nuclear decay. Both types of beta particle and the alpha particle are forms of particulate radiation that result from nuclear decay of radioactive materials. Which form of decay and the energies of the particles as they leave the nucleus vary as the radionuclide emitting them.
What do we mean when we say that particles such as neutrinos or wimps are weakly interacting, and how does this characteristic impact their behavior in the realm of particle physics?
Particles like neutrinos and WIMPs are considered weakly interacting because they rarely interact with other particles through the weak nuclear force. This means they can pass through matter without being affected much. This characteristic impacts their behavior in particle physics by making them difficult to detect and study, as they don't leave a strong signal when interacting with other particles.
DO BETA particles cause ionisation?
Yes, beta particles can cause ionization. They are high-energy, fast-moving electrons (in the case of beta-minus decay) or positrons (in the case of beta-plus decay) that can interact with atoms and molecules, knocking off electrons and creating ions in the process.
What happens in the photo system 2 protein when its hit by a photon of light?
When a photon of light hits the photosystem II protein, it excites an electron within the chlorophyll molecule, causing it to jump to a higher energy state and leave the chlorophyll molecule. This electron is then passed down an electron transport chain to generate ATP and NADPH for use in the light-dependent reactions of photosynthesis.
How does a large particle leave a cell by a active transport?
It requires energy, and a protein carrier molecule. The large particle binds to the protein carrier on the inside of the cell. It is then transported across the membrane as a result of a conformational change in the protein (think of it flipping), and then it is released on the outside of the cell. Again, this requires some source of energy.
What is the process by which materials enter and leave the cell through the cell membrane?
Materials enter and leave the cell through the process of passive and active transport. Passive transport includes diffusion, osmosis, and facilitated diffusion, while active transport involves the use of energy to move molecules against their concentration gradient. Additionally, materials can also enter and leave the cell through endocytosis and exocytosis, which involve the cell membrane forming vesicles to take in or expel large particles or molecules.
Type of active transport that moves large particles into a cell through vesicles?
Endocytosis - the way in which cells take in food and other materials. The cells membrane wraps around the particle it needs on its outside, ingesting it. This then becomes trapped within a vacuole inside the cells cytoplasm where it is broken down, digested, and absorbed by enzymes.
What Is the process which material enter and leave the cell through the cell membrane?
Either active transport, passive transport, or facilitated diffusion
What 3 ways can substances enter and leave a cell?
Substances can move in and out of a cell in several ways. Diffusion is when a substance will distribute itself in or out of a cell until the distribution on both sides of the cell is balanced. Active transport is when a cell transports a substance across the cell membrane that would not normally be able to pass through. Osmosis is the movement of water from areas with few dissolved dissolved substances to areas with high dissolved substances.
How do substances get in and out of a cell if they are to big to pass through the cell membrane?
Do you mean how do substances move through a cell membrane if they are too big to transport by passive transport?If so, a cell uses active transport to move large particles in and out of a cell. Active transport includes endocytosis, pinocytosis, and phagocytosis.
Are osmosis and endocytosis passive transports?
It is an active transport,Transport mechanisms fall into two catagories passive and active. Passive transport mechanisms do not require the cell to do work for the substance to enter or leave the cell. Instead the energy involved comes from the kinetic energy of the molecules in solution. Active transport mechanisms involve the cell to use cellular energy usually in the form of ATP to power special protein pumps to bring material into the cell.Passive transport mechanisms Active Transport mechanismsSimple diffusionOsmosisFacilitated DiffusionSimple protein channelsGated channelsActive transport via protein pumpsBulk flow mechanismsendocytosisphagocytosispinocytosisexocytosisThe passive transport mechanisms and the protein pump mechanisms involve movement of substances as single molecules across the membrane. The "bulk" flow mechanisms endocytosis and exocytosis enable the cell to take in very large packages of molecules...say a food item from the environment. Many books treat these bulk flow mechanisms as separate from active transport for that reason.
What are the 3 types of cellular transport that the plasma membrane controls?
There are many different processes that are controlled by the plasma membrane aka as the cell membrane.Selective Permeable -- this means that only certain things will be allowed to enter or to leave the cell membrane.Active transport -- this process is where ATP is required. An example of this type of transport is when there is particles that are too large to passively go through the membrane will need to be carried by glucose, and through protein carriers.Passive transport -- this is where no actual ATP is required, it flows quite freely through the membrane. One example of this type is diffusion.
What is the process by which substances enter and leave cells and become distributed within cells?
Substances enter and leave cells through processes such as diffusion, facilitated diffusion, active transport, and endocytosis/exocytosis. Once inside the cell, substances can become distributed within cells through diffusion, cytoplasmic streaming, vesicular transport, and interactions with organelles.
What transport leave the cell without the use of energy?
Passive Transport, and if your dealing with liquids its is Osmosis. Passive Transport is the act of transport with no use of energy: hence the word "Passive." But Active Transport is when it does use energy: hence the word "Active."
3 ways materials enter and leave cell?
Materials can enter a cell through processes like diffusion, facilitated diffusion, and active transport. These substances can leave a cell through processes such as diffusion, osmosis, and exocytosis.
Is a carrier protein an active transport or a passive transport?
They are used in both, in passive the molecules move in , then change the shape then leave and the entering and leaving are both by diffusion. in active transport molecules move in by diffusion, change the shape of the carrier protein, then because theyre moving into the cell where the molecule is in higher concentration energy is required to push the molecules out of the carrier proteins, this energy comes from ATP which is supplied to the carrier proteins.
