1. The passive, directional movement of molecules across a membrane is called 2.
ID: 211919 • Letter: 1
Question
1. The passive, directional movement of molecules across a membrane is called 2. A type of #1 which involves only movement of water is called 3. In which way (i.e. high to low concentration or low to high concentration) does movement always occur if there is no energy available? 4. refers to two solutions that have equal concentrations of solutes 5. When a plant cell is in a hypotonic solution, water will move into the cell and the plant 6. What will happen if an animal cells takes in too much water because they are in a 7. If a dialysis bag is filled with 20% sucrose and put in a beaker of 10% sucrose, will the 8. If a dialysis bag is filled with 15% sucrose and put in a beaker of distilled water, will the 9. If a dialysis bag is filled with distilled water and placed in a beaker of distilled water, will cell will fill out" to its cell wall. This cell is said to be (isotonic, turgid, plasmolyzed) hypotonic solution? bag gain or lose weight? bag gain or lose weight? there be any movement of water across the membrane? Will there be a net change in the bag's weight? 10. When a plant cell is put in a hypertonic solution, water will leave the cell and will occur. (Isotonicity, turgidity, plasmolysis)Explanation / Answer
1. Diffusion
Diffusion is the passive movement of molecules across a membrane.
2. Osmosis
When water travel across membrane, the process is known as osmosis.
3. High to low concentration
The flow of molecules from high concentration to low concentration does not require any energy.
4. Isotonic
When the concentration of two concentrations are equal, it is known as isotonic.
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