In exercise 1, experiment A, the students will need a microscope slide, a coverslip, a compound microscope, carmine powder, distilled water, and a pipette. The students will begin by placing a drop of water on the microscope slide. Then they will add carmine powder onto the slide. Then they will place a coverslip on top of the solution. This will aid in mixing the solution. Then the students will observe the movement of the carmine particles on low power and high power.
In exercise 1, experiment B, the students will need a rubber band, 30% glucose solution, starch solution, I2Kl solution, Benedict’s reagent, hot plate, 200 mL beaker, distilled water, 3 standard test tubes, disposable transfer pipettes, and 30 cm strip of moist dialysis tubing.
The students will begin by preparing the beaker in which the dialysis tubing will be placed. They will start by adding 150 mL of water to a 200 mL beaker. Then they will add enough drops of I2Kl to turn the color of the solution yellow. …show more content…
They will do this by first folding one end of the dialysis tubing in an accordion style several times. They will do this first horizontally, then vertically. Then they will secure that end of the dialysis tubing by wrapping a string around it and tying it securely. Afterwards, they will open the opposite end of the bag and add 4 pipettesful of 30% glucose and 4 pipettesful of starch solution. Then they will mix the solution. Next the students will completely submerge the dialysis tubing in the beaker with both ends hanging out. They will secure the bag by placing a rubber band around the top of the beaker over the dialysis tubing. Then the students will wait 30 minutes till they observe if there was a color change in the
In exercise 1, experiment B, the students will need a rubber band, 30% glucose solution, starch solution, I2Kl solution, Benedict’s reagent, hot plate, 200 mL beaker, distilled water, 3 standard test tubes, disposable transfer pipettes, and 30 cm strip of moist dialysis tubing.
The students will begin by preparing the beaker in which the dialysis tubing will be placed. They will start by adding 150 mL of water to a 200 mL beaker. Then they will add enough drops of I2Kl to turn the color of the solution yellow. …show more content…
They will do this by first folding one end of the dialysis tubing in an accordion style several times. They will do this first horizontally, then vertically. Then they will secure that end of the dialysis tubing by wrapping a string around it and tying it securely. Afterwards, they will open the opposite end of the bag and add 4 pipettesful of 30% glucose and 4 pipettesful of starch solution. Then they will mix the solution. Next the students will completely submerge the dialysis tubing in the beaker with both ends hanging out. They will secure the bag by placing a rubber band around the top of the beaker over the dialysis tubing. Then the students will wait 30 minutes till they observe if there was a color change in the