A&P-Ch. 3-
Terms
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- The 2type of groups that are called transport mechanisms and assist in the movement of water/dissolve substances across the cell membrane?
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Passive Transport &
Active Transport - Transport mechanisms require no energy(ATP)& these mechanisms cause water/dissolved substances to move without energy,like a ball rolling downhill?
- Passive Transport
- Name some of the Passive Mechanisms that move substances across the membrane?
- Diffusion, Facilitated diffusion, Osmosis and Filtration!
- The most common passive transport mechanism? Moves a substance from a higher area of concentration to an area of a lower concetration?
- Diffusion
- A passive transport mechanism in which glucose is helped across the cell membrane by a helper molecule? Helps mover from a higher to lower also.
- Facilitated diffusion
- A kind of diffusion of water through a selectively permeable membrane. Water diffuses from an area w/more water to one with less?
- Osmosis
- The capacity to pull water & the strength of the pressure is related directly to the concentration of the solution?
- Osmotic pressure
- This solution has the same concentration as the solution to which it is compared? Means the same, no water is lost or gained?
- Isotonic Solution
- This solution causes the RBC to burst or lyse. It is more dilute than inside the cell? When RBC place in pure water?
- Hypotonic Solution
- This is a salt solution causing the RBC to shrink or crenate?
- Hypertonic Solution
- This when water/dissolved substances cross the membrane in response to differences in pressure? Pressure/force push the substances across the membrane?
- Filtration
- This kind of transport that nds energy (ATP) to achieve its goal, to move from a low area of concentration to a high area.
- Active Transport
- The transport mechanism(endo) that takes in food or liquid by the cell membrane,because the particle is to large to move across the membrane by diffusion?
- Endocytosis
- A lysosome (phago) that eats or ingests a bacteria,helping the body defend itself against infection?
- Phagocytosis
- A protein-containing vesicle (exo) within the cell fuses w/the cell membrane and ejects the protein?
- Exocytosis
- Passive Transports like Diffusion,Fdiffusion,filtration and Osmosis do what?
- Passive Transports which move move substances from a higher Concentration to a lower Concentration without energy.
- This kind of Transport require energy to move substances from a low concentration to a higher one?
- Active Transport Mechanisms
- Means the intake of liquid droplets by the cell membrane; also called "cellular drinking."
- Pinocytosis
- Moves substances out of the cell?
- Exocytosis
- Transport mechanism that involves the intake of food or liquid by the cell membrane?
- Endocytosis