This is basically a case of osmosis. Now in osmosis the movement of sovent takes place, in this case water. The movement of solvent takes place from a region of lower solute concentration to a region of higher solute concentration so that solute concentrations are equalized. Here glucose is the solute.
The concentration of the solute (glucose) inside the cell is 5M whereas outside the cell in the beaker it is almost 0. Thus water will move from outside to the inside of the cell and tend to equalize the glucose concentration.
Correct option will be:
Water moves into the cell
Scientist performs an experiment in which they create an artificial cell with a permeable membrane that...
You are interested in what substances are able to move through an artificial, semi-permeable membrane. You fill your semi-permeable membrane with glucose, starch, and albumin (protein), tie it off to form a bag, and immerse it in a beaker full of plain water. An hour later, you perform several tests on the water surrounding the bag yielding the following results: Iodine test=negative, benedict’s test=positive, and biuret’s test=negative. Which substance was able to move through the membrane and leave the bag and...
Imagine an artificial cell submerged in a beaker of water. There is an equal concentration of NaCl on either side of the cell membrane. The membrane is permeable to water. It also contains an artificial NaCl pump which can pump NaCl from inside the cell when power is connected (when the pump is off, the membrane is impermeable to NaCl). The pump is turned on and 50% of the NaCl in the cell moves to outside the cell. What happens?...
1) Imagine that a simulated cell is made using dialysis tubing as the membrane and water mixed with glucose, salt, and protein as the cytosol. Imagine that this 16 gram cell is placed in a beaker of distilled water for 1 hour. After 1 hour the cell has gained 3 grams of weight. The beaker solution tests positive for glucose and salt, but tests negative for protein. Which of the following CANNOT be correctly concluded? a. Glucose and salt diffused...
You create an artificial vesicle containing a transport protein in its membrane. The transport protein uses ATP to pump one Mg2+ ion into the cell for every Na+ ion it pumps out. At the starting point of the experiment, the concentration of Mg2+, Na+, and ATP are the same inside and outside the vesicle. a) After 1 hour, which ion(s) will be at a higher concentration inside the vesicle? b) After 1 hour, which ion(s) will be...
In the lab. you use a special balloon that is meant to reflect an artificial cell. The balloon is permeable to water and sucrose but no other molecules. The balloon is filled with a solution that is 15% sucrose 20% glucose 10% cellulose and 55% water. The balloon is submerged in a beaker containing 15% sucrose 10% glucose and 75% water. Which of the following events would occur? (select only what applies) partial credit applied, negative scoring applied cellulose will...
Please explain it with steps,
Thank you!
5 A cell s a semipermeable membrane through which water may pass. If a cell, having a salinity (salt content) of 1.5% w/v NaCl, is placed in a solution made of normal physiological saline (0.9% w/vNaCl) which way will the water flow? Explain your answer. (Diagrams are OK also, but need to have words explaining it.) Flow of water Bag is a sem permeable Solution in bag "cell" Solution outside of bag (the...
Experiment 2: Diffusion Concentration Gradients and Membrane
Permeability
Data Tables
Table 2: Indicator Reagent Data
Indicator
Starch Positive
Starch Negative
Glucose Positive
Glucose Negative
Glucose Test Strip
n/a
n/a
green
yellow
IKI Solution
dark blue
light brown
n/a
n/a
Table 3: Diffusion of Starch and Glucose Over
Time
Indicator
Dialysis Bag After 60 Minutes
Beaker Water After 60 Minutes
Glucose Test Strip
yellow
green ( if all glucose passed to the beaker from the bag)
IKI
from incolore changed to...
In an experiment involving diffusion and osmosis, you are given dialysis tubing, beakers of pure water, and 2 solutions: dissolved starch, and diluted iodine. You are told that when starch and iodine come into contact with each other, the starch turns a deep blue-black. Your problem is to find out whether the dialysis tubing is permeable to (lets molecules through) either iodine and/or starch. How could you find out? (Choose the only one of the following possibilities that is accurate.)...
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...
Which scientist / experiment provided the most compelling evidence to disproved Aristotle's theory of Spontaneous generation? 1) Pasteur's swan neck experiment 2) Lazzaro's mutton broth experiment 3) Redi's flask and meat experiment 4) Pasteur's flask and meat experiment Antibiotic resistance genes may be transferred from one bacteria to another by conjugation via.... 1) the sex pilus 2) porins 3) chemotaxis 4) gas vacuoles Which of the following is not true of Gram-positive bacteria? 1) Posess an outer membrane composed of...