Osmosis 5. Did water flow into or out of the plant cells (potato cells) in each of the samples examined? How do you know this? 6. Would this experiment work with other plant cells? What about with animal cells? Why or why not? 7. From what you know of tonicity, what can you say about the plant cells and the solutions in the test tubes? What do your results show about the concentration of the cytoplasm in the potato cells...
Osmosis 5. Did water flow into or out of the plant cells (potato cells) in each of the samples examined? How do you know this? 6. Would this experiment work with other plant cells? What about with animal cells? Why or why not? 7. From what you know of tonicity, what can you say about the plant cells and the solutions in the test tubes? What do your results show about the concentration of the cytoplasm in the potato cells...
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase? i think it decreases but i'm not sure. and if a plant cell has a lower water potential than its surroundings and if pressure=0, is the cell hypertonic(in terms of solute concentration) or hypotonic to its environment? will the cell gain or lose water? any ideas...?http://en.wikipedia.org/wiki/Water_potentialanalysis queswhat is water potential?Osmosis Lab /27819 Name: ________________________________ Date: ___________...
Instead of discussing osmosis in terms of water concentration, we often speak of the "water potential" of a solution. Considering that the units of pressure are Pascals, which are Newtons per meter squared (1 Pa = 1 N/m?), we can also write the units of pressure in terms of units of energy as an energy density (1 Pa = 1 N/m² = 1 J/mº) since a Joule equals a Newton*meter. Hence, we can speak of the concentration of the water...
help with volume calculation and percent change calculation CHEM 1151 - Lab Manual REPORT SHEET Osmosis-The Potato Lab Name Catherine Crumley_ Date ID|3119_Section 33 Partner's Name Brooke Cline Instructor N. Msimanga Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A 20 % w/ Naci 2.66e8a 2.50cm 0.40 cm Potato Disk "B" 0.9 % w/v NaCl 2.6829 2.30 cm 0.50 cm Potato Disk "C" Distilled Water 2.874 2.50 cm 0.50 cm Data: Potato Disks...
Plant physiology questions To be completed and turned in next week: POST-LAB QUESTIONS: 1. If a potato core is allowed to dehydrate by sitting in the open air, would the water potential of the potato cells decrease or increase? Why? 2. If a plant cell has a lower water potential than its surrounding environment and if pressure is equal to zero, is the cell hypertonic (Gn terms of solute concentration) or hypotonic to its environment? Will the cell gain or...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
Lab 2A: Introduction In this lab, you will be studying osmosis across the membrane of potato cells. You will create equal-sized pieces of potato and then place the pieces in solutions with differing concentrations. You will then, over time, measure any changes that take place in the size and weight of the potato pieces. To measure changes in size, you will need either a gram scale (like a food scale) or a millimetre ruler. It is best if you have...
I need help with filling out the chart in the second picture, the first photo is the data needed to answer the questions Figure 4.7 Osmosis demonstration. Athistle tube, covered at the broad end by a differential contains distilled water. b. The solute (starch is unable to pass the through in both directions. There is a net movement of water town and lower water concentration. c. Due to the incomi ally permeable membrane, contains a arch o n through the...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of the solution. Concentrations are typically expressed as Mass al.) (% m/m) which is the mass of the solute (g) divided by the mass of the solution [solute+ solvent] (g)x 1000/0; or as Volume ol.) (% v/v ) which is the volume of the solute in a fixed volume of solution (1O0mL of solution) x 1000/0; or less commonly in the laboratory,...