Question: Are you actually observing molecular movement?

Answer: Technically, no, but they act as if they are molecules since they move randomly and bounce.

Question: How can the movement observed bring about diffusion?

Answer: The kinetic energy driving the movement will ultimately force the molecules from higher to lower concentration.

Question: What does the Benedict’s test for reducing sugar require after the reagent is added?

Answer: heat in boiling water bath

Question: What colors would you expect if the experiment started with glucose and I2KI inside the bag and starch in the beaker?

Answer: Beaker: purple/black

bag: yellow/amber

Question: What does the Benedict’s test look for?

Answer: reducing sugar

Question: What does the I2KI test for?

Answer: starch

Question: Know how to use vernier caliper

Answer: :(

Question: Describe plant wilting in terms of turgor pressure

Answer: Plants wilt due to a lack of turgor pressure. A surrounding hypotonic solution will result in turgor pressure, but a hypertonic solution will cause water to leave the cells, resulting in wilting.

Question: How does curing food help prevent spoilage?

Answer: By creating an external hypertonic solution, water will leave the food and organisms responsible for spoilage will not be able to survive

Question: What kind of osmotic solution would have resulted in a patient’s death?

Answer: Either hypertonic solution, which would have caused crenation, or hypotonic solution, which would have caused lysis.