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Experiment 1: Membrane Size Selectivity
Take a diffusion bag and a 250 mL beaker from the Containers shelf and place them onto the workbench.
Fill the bag with 45 mL of water and 5 mL of Lugol's iodine solution from the Materials shelf.
Fill the beaker with 150 mL of water and 50 mL of 2% starch solution. Record the color of the liquid in the beaker and of the liquid in the diffusion bag to reference later.
Move the diffusion bag into the beaker.
Watch the beaker and bag for signs of color change. After 30 seconds, move the diffusion bag out of the beaker and onto the workbench. What color is the liquid in the beaker? What color is the liquid in the diffusion bag? Record your observations to reference later.
Empty the beaker and diffusion bag into the waste bin and then place the empty containers in the sink.
Action potentials relay differentintensities of information by changing in ______.
How were the molecules in band b of panel B produced? What conclusion can be drawn from comparing the samples in A and B?
Researchers have adapted the principles of affinity chromatography to purify different types of protein, including lectin, recombinant protein and antibodies. Describe the ligand and matrix associated with isolating each of these three proteins.
In what way(s) is the science of biology influencing and changing our culture?
Explain how this inhibition of sodium ions in the loop of Henle could help increase urine production
A buffer solution composed of 0.22 M solution of ammonia and 0.16 M solution of ammonium chloride.
In a Tundra ecosystem, what are the relationships between the number of producers, primary consumers, and secondary consumers?
1. What is the sequence of greatness of the smog formation in regard to the aromatic compounds
Why is it important that RN not form a duplex with its DNA template? What is the advantage to the cell?
q1. the kingdom fungi contains members with saprobic parasitic and mutualistic modes of nutritiom. how do these types
Using thermodynamic theory as a foundation, devise and comment on what you consider to be a good rationale for responsible consumerism.
Axel is a fishery biologist inspecting a bay in which insects feed upon algae, fish feed upon insects, and crabs consume the remains of fish that die. In this example, how would you classify a crab?
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