Homework Answers
1. Isotonic: Means that same osmotic pressure
2. Hypotonic solution means that the solution with lowest osomotic pressure/ smaller concentrations in the outside of the cell than inside of the cell.
3. Hypertonic solution means that the solution with highest osmotic pressure or greater concentration in outside of the cell
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(Use the spaces provided for the ans 1. The three solutions used in the osmosis portion...
1. Describe the changes in your potato sample when placed in distilled water. Based on these...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
Potato strips were weighed and then soaked in different salt solutions (0%, 0.9%, and 5% NaCl)....
Potato strips were weighed and then soaked in different salt solutions (0%, 0.9%, and 5% NaCl). After 75 minutes the potato strips were dried and weighed, and the percent change in weight was calculated for each Based on the graph, which salt solution was hypertonic to the potato strips? Which variable is the independent variable in this experiment? The cells in the image are displaying plasmolysis. What type of solution must the cells have been placed into? hypotonic solution hypertonic solution isotonic solution
check my answer please if it wrong correct me Osmosis is an ongoing process in the...
check my answer please if it wrong correct me
Osmosis is an ongoing process in the body that is possible because cell membranes are selectively permeable (semipermeable). Osmosis effects can be observed in the lab. For example, differences in osmotic pressure inside and outside a red blood cell can result in crenation (shriveling) or hemolysis (rupture). For this reason, care must be taken when administering intravenous (IV) fluids to hospital patients. If the IV solution has a different concentration from...
Questions I a) What is osmosis? b) What is dialysis? Can MgSO4 pass through? Explain. 2....
Questions I a) What is osmosis? b) What is dialysis? Can MgSO4 pass through? Explain. 2. Can starch pass through a dialyzing membrane? (Support your claim with evidence from the experiment.) 3. Explain why people who are adrift in a lifeboat without a supply of fresh water are advised not to drink ocean water. note - Ocean water is saltier than body fluids like blood plasma. 4. In terms of osmosis, what happens when fresh water is inhaled into a...
please helps me with simply define: PART A: Osmosis Define the following terms. 1 Solution: 2...
please helps me with simply define:
PART A: Osmosis Define the following terms. 1 Solution: 2 Solute: 3 Solvent: 4 Diffusion: 5 Selectively permeable: 6 Osmosis: 7 Hypotonic: 8 Hypertonic: 9 Isotonic: 10 Plasmolysis: 11 Turgor pressure: PART B: Cell Structure Identify the functions of the following organelles. Plant Cells 1 Chloroplasts: 2 Central vacuole: 3 Cell wall: Animal Cells 1 Lysosomes: 2 Centrioles: Plant and Animal Cells 1 Nucleolus: 2 Rough endoplasmic reticulum: 3 Smooth endoplasmic reticulum: 4 Golgi...
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase
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: ___________...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
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...
. For each of the 3 situations below, use an arrow to indicate the net movement...
. For each of the 3 situations below, use an arrow to indicate the net movement of water into or out of the cell through the semipermeable plasma membrane (i.e. osmosis). (Assume that the sugar molecules cannot pass through the plasma membrane in each case.) 1% sugar (inside a circule) 3% sugar (inside a circule) 1% sugar (inside a circule) 5% sugar 1% sugar 1% sugar 3. In each of the drawings above, indicate if the inside of the cell...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
Section Post-Laboratory Questions (use the spaces provided for the answers and additional paper ifnecessary. 1. laboratory...
Section Post-Laboratory Questions (use the spaces provided for the answers and additional paper ifnecessary. 1. laboratory the m molar mass of your unknown. Calculate the percent error for the gram molar mass of your unknown. 2. A student, following the procedure described in this module, used water as the solvent and encountered some interesting problems. Comment on the effect, if any, each of the following situ- ations could have had on the experimental results. a) The unknown, a white powder,...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
Potato strips were weighed and then soaked in different salt solutions (0%, 0.9%, and 5% NaCl). After 75 minutes the potato strips were dried and weighed, and the percent change in weight was calculated for each Based on the graph, which salt solution was hypertonic to the potato strips? Which variable is the independent variable in this experiment? The cells in the image are displaying plasmolysis. What type of solution must the cells have been placed into? hypotonic solution hypertonic solution isotonic solution
check my answer please if it wrong correct me
Osmosis is an ongoing process in the body that is possible because cell membranes are selectively permeable (semipermeable). Osmosis effects can be observed in the lab. For example, differences in osmotic pressure inside and outside a red blood cell can result in crenation (shriveling) or hemolysis (rupture). For this reason, care must be taken when administering intravenous (IV) fluids to hospital patients. If the IV solution has a different concentration from...
Questions I a) What is osmosis? b) What is dialysis? Can MgSO4 pass through? Explain. 2. Can starch pass through a dialyzing membrane? (Support your claim with evidence from the experiment.) 3. Explain why people who are adrift in a lifeboat without a supply of fresh water are advised not to drink ocean water. note - Ocean water is saltier than body fluids like blood plasma. 4. In terms of osmosis, what happens when fresh water is inhaled into a...
please helps me with simply define:
PART A: Osmosis Define the following terms. 1 Solution: 2 Solute: 3 Solvent: 4 Diffusion: 5 Selectively permeable: 6 Osmosis: 7 Hypotonic: 8 Hypertonic: 9 Isotonic: 10 Plasmolysis: 11 Turgor pressure: PART B: Cell Structure Identify the functions of the following organelles. Plant Cells 1 Chloroplasts: 2 Central vacuole: 3 Cell wall: Animal Cells 1 Lysosomes: 2 Centrioles: Plant and Animal Cells 1 Nucleolus: 2 Rough endoplasmic reticulum: 3 Smooth endoplasmic reticulum: 4 Golgi...
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...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
Section Post-Laboratory Questions (use the spaces provided for the answers and additional paper ifnecessary. 1. laboratory the m molar mass of your unknown. Calculate the percent error for the gram molar mass of your unknown. 2. A student, following the procedure described in this module, used water as the solvent and encountered some interesting problems. Comment on the effect, if any, each of the following situ- ations could have had on the experimental results. a) The unknown, a white powder,...
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