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A isotonic a solution that has equal concentrations

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a) Isotonic – a solution that has equal concentrations of solutes (salts) and solvent (water) in comparison to the concentrations of solute & solvent interior of the cell. b) Hypotonic – a solution that has lower concentration of solutes (salts) and higher concentration of solvent (water) in comparison to the concentrations of solute & solvent interior of the cell. c) Hypertonic – a solution that has higher concentration of solutes (salts) and a lower concentration of solvent (water) in comparison to the concentrations of solute & solvent interior of the cell. 14. Identify the tonicity of an external medium (as defined in item 13) under which: a) The cell loses water: _ Hypertonic _ b) The cell neither gains nor loses water: _ Isotonic _ c) The cell gains water: _ Hypotonic _ 15. In this exercise, name the a) solvent, b) solute. b ) solute – Sucrose a ) solvent – Tap water 16. What is a dialysis bag? What role does it play in this exercise? It is dialysis tubing cut open and tied up into a bag with substances inside. Dialysis tubing is a membrane with pores large enough to allow passage of water but too small to permit movement of large molecules. 17. When labeling the graph, what is the a) dependent variable, b) independent variable? a) Dependent – rate of osmosis b) Independent – concentration of sucrose
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Exercise 5.5: 18. Name the pigment, its color, and location, contained in beetroot. Betacyanin, reddish pigment, localized inside the large central vacuoles surrounded by a membrane called tonoplast.
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