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kwiles C5
Cellular transport
| Question | Answer |
|---|---|
| Cells move molecules, matter, organisms across their cell membrane using only passive systems. T or F | F |
| A passive cellular transport system requires the cell to spend energy in the form of ATP T or F | F |
| A cellular transport system that does not require the cell to spend energy is referred to as a what? | passive system |
| A cellular transport system that does require the cell to spend energy is referred to as what? | Active system |
| A difference of molecule concentration across space is referrd to as a concentration what? | gradient |
| Passive cellular transport systems rely on molecules moving from a __________ concentration to a __________ concentration | higher to lower |
| The energy that molecules move by in passive systems is provided by the vibrational energies contained in the chemical __________ of the molecules. | bonds |
| If a cell dehydrates and cannot reestablish homeostasis, the cell will undergo ____________ | plasmolysis |
| Cells undergo plasmolysis when they are in what kind of environment? | hyertonic |
| If a cell was placed in a hypotonic enivronment and could not achieve homeostasis due to some pathology, the cell would eventually undergo ___________ | cytolysis |
| The suffix lysis means what? | divide |
| Is osmosis a passive or active system ? | passive |
| What is the name of the process that water moves across a cell membrane by? | osmosis |
| Passive cellular transport systems include: | ionic channel difussion, simple diffusion, facillitated diffusion and osmosis |
| Active cellular transport systems include: | endocytosis and exocytosis |
| Define phagocytosis: | Part of endocytosis whereby a cell can bring into it's interior large particles or even whole organisms to be destroyed or metabolized. |
| If a cell brings in fluid and small dissolved solutes, we refer to this form of endocytosis as: | pinocytosis |
| If a cell had 10 percent solutes inside it's cell membrane and 20 percent solutes in the interstitial fluid it would be in a __________ environment. | hypertonic environment |
| If a cell were in a hypetonic environment, which way would solutes move and by what process? | solutes would move into the cell by simple diffusion. |
| What cellular membrane molecules are involved in the process of facillitated diffusion? | carrier proteins. |
| Cellular transport systems are employed by cells to help maintain__________________ | isotonic environment or homeostasis |
| If a solute was a really big molecule, the ACTIVE form of transport employed would be______________________? | Endocytosis , more specifically phagocytosis |
| If a solute was a really big molecule, the PASSIVE form of transport employed would be_______________? | Facilitated diffusion. |
| The part of a solution that does the dissolving is called the __________? | solvent |
| The part of the solution that gets dissolved is called the __________ | solute |
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kwiles
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