CRITICAL THINKING ASSIGNMENT

Consult your textbook, chapter 2 for the following question:

1.) Using your new knowledge of polar and nonpolar compounds and the properties of phospholipids, briefly explain how soap works. Are fats dissolved by soap?

Questions 2, 3 and 4: Complete the following scenario and explain your reasoning by using complete sentences and providing data where necessary. Your Amerman textbook and the following resources will help you.

On her first day of a new assignment, a young nanny for a two year old child notices that the child is reluctant to walk, and the presence of a firm slightly tender lump on the lower left shin. After examination by the pediatrician, a radiograph is ordered. The radiology report describes an oblique lucency with periosteal reaction in the distal third of the tibial diaphysis.

2.) Did this finding occur because of the nanny's care?

3.) Is this finding worrisome for child abuse?

4.) Name all cell types involved in the process of fracture healing.

EMPIRICAL/QUANTITATIVE

1.) A typical eukaryotic human cell in culture mitotically divides about every 24 hours. Starting with a single cell, without interruptions, how many cells could be present at the end of two full weeks? (Show your work.)

2.) Which is closer to neutral pH, a 0.0001 M or a 0.0000001 M solution of HCl? (Show your work.)

3.) Construct a graph showing how voltage changes over time at a given point inside an axon of a neuron during the course of an action potential. Be sure the label the axes of the graph, and identify/describe all four major steps of an action potential, including the changes in the ion channels.

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