a) b) 1. Does the semi-permeable membrane allow for the movement of solution? What is your evidence? 2. Does the semi-permeable membrane allow for the movement of water? What is your evidence? 3. Has the left and right side of the tube reached equilibrium? What is your evidence?

1. Describe the properties of the element tungsten. 2. List two reasons why it is a good material for x-ray tube targets and at least one reason why it is used for x-ray tube filaments. 3. Name the three components of the x-ray tube that contribute to the inherent filtration. 4. If a patient has a body part that has a very thick portion and a very thin portion, which aspect of the x-ray tube should be placed over the thinnest area

hereby carbokydrates Which of the following is true concerning pH? from the plasm lledh 32. A. The pH of plasma is slightly acidic. B. The pH of body fluids is slighty alkalinie. C. The pH of the body fluids increases during exercise. D. The pH of the urine increases during exercise.

8. Tube number 1 contains a broth culture of bacteria. You transfer 30ml from tube 1 and place it into tube 2, which contains 270 ml of diluent. Calculate the dilution performed to create tube 2. What is the dilution factor between tubes 1 and 2? b. If the concentration of bacteria in tube 2 is 2x106 cells/ml, what is the concentration of a. bacteria in tube 1? с. If tube number 1 contains 5ml of bacterial culture, what is the total number of bacterial cells present in tube 1? d. What is the total number of bacterial cells in tube 2?

3.

On the graph that relates absorbance to flavin concentration, draw a horizontal line that starts at the point on the y-axis that corresponds to the absorbance of your unknown sample and ends at the curve you drew through your data points . Next draw a vertical line that starts at the point where the horizontal line intersected the curve and ends at the x-axis. The point where this vertical line intersects the x-axis corresponds to the concentration of flavin in your unknown sample. What was the letter on the tube with your unknown sample? What is the concentration of the flavin in your unknown

1. An erythrocyte placed into a hypertonic solution will display which of the following effects? flaccidity plasmolysis crenation hemolysis turgidity

This assignment was tricky and I had a hard time figuring it out you place 3 bags each containing 20% sucrose solution in three different beakers. What will happen to the weight of the bag in all three cases? Mention which beaker has hypo, hyper and isotonic solution with respect to the solution of the bag. So I have to figure out what the beaker 1 bag is ___ tonic And the beaker is ___ tonic Then what’s the weight of the bag in each beaker 1,2,4 and in beaker 2 I have to know what’s the bag _____ tonic and beaker is _______ then the third beaker 3 the same _______ tonic and the _________ tonic Because in beaker 1 the bag is 20% sucrose And the beaker is 40% sucrose In beaker 2 the bag is 20% sucrose and beaker is 20% sucrose Then for beaker 3 Bag in beaker 3 is 20% sucrose Beaker 3, beaker has 10% sucrose Then I have to mention if the weight of the bag will increase decrease or remain the same. Also what the objective of a microscope is 50x and that of the…

If you had a dialysis tube that contained 1.3M sucrose solution and youput it into a beaker containing 0.4M sucrose solution. Which direction Would the water move??