Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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For osmosis in science, if you gargle with salt water why does your throat stop hurting?
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- Why is simple diffusion not an option for most molecules?arrow_forwardFor a lab on diffusion and osmosis, where a egg yolk was placed in a cup water the following question asks Consider a scenario in which the size of an egg yolk remains unchanged after in water soaking for an hour. What are two possible explanations as to why this occurs? What would two reasons be for the yolk to be unchanged after a hour in water?arrow_forwardA student carries out an experiment to investigate the role passive transport plays in maintaining homeostasis in organisms. For this investigation, the student uses two gummy bear candies to represent animal cells. The student records the mass of each bear. Then, he places one in a beaker filled with distilled water. He places the other in a beaker filled with salt water. After 48 hours, he removes the bears from the beakers and records their masses again. He finds that the mass of the gummy bear in the distilled water significantly increased, while the mass of the gummy bear in the salt water significantly decreased. Which of the following is the BEST interpretation of the observations made during the investigation?arrow_forward
- Why can humans not survive by drinking seawater? Explain using osmosis.arrow_forward1. Define Osmosis. 2. Describe in detail, the similarities between osmosis and diffusion. Make sure you make a statement about each process. 3.As the solute concentration rises from 0% up to 100% of solute, what happens to the solvent concentration?arrow_forwardExperiment on Osmosis or diffusionarrow_forward
- You were introduced to osmosis in Chapter 8 earlier in the course. This week, Chapter 15 continues this discussion by introducing the cell membrane. For additional information, review one or two of the websites listed below. Osmosis: Real-life Applications How Is Osmosis Used in Kidney Dialysis? Guide to Forward Osmosis Applications Choose one way that osmosis and membranes are used in living things, medicine or industry. Describe how osmosis and membranes are used in the real-life application you chose. What are some of the materials necessary? Is an input of energy necessary?arrow_forwardDefine Osmosis in your own wordsarrow_forwardStatement 1: The direction of diffusion of a solute across a membrane is determined by its concentration gradient and always moves toward equilibrium. Statement 2: In passive transport, solutes move down the gradient from a region of low concentration to a region of high concentration. A Both statements are true. Both statements are false. C) Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true.arrow_forward
- The pathway that can move highest rates of sodium ions is: A. Sodium channels B. Sodium pumps-ATPases C. Sodium exchangers D. Sodium diffusion in solutionarrow_forwardExplain how osmosis works including the concept of concentration gradientarrow_forwardThis is for osmosis in animal cells.arrow_forward
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