Temperature and pH can have profound effects on the ionization states of molecules. Explain how they can cause these effects and why ionization is important physiologically
What will be an ideal response?
Answer: Molecules are frequently connected to each other via weaker or less stable bonds. The ionization state of molecules frequently is dependent upon weaker bonds. Generally, lower temperatures make bonds more stable, and higher temperatures destabilize the bonds by decreasing or increasing molecular movements. pH also changes bond strength by changing the concentration of hydrogen ions available to interact with molecules. Changes in ionization of proteins can change their folding, and therefore their function. Since proteins are integral to cell performance, disrupting their functionality will also disrupt normal processes in cells, causing possible harm to the organism.
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Tendon sheaths ________.
A) act as friction-reducing structures B) are lined with dense irregular connective tissue C) form channels for tendons D) help anchor the tendon to the muscle
Compare the two methods of preparing for ultrasonographic examination. State which method increases the diagnostic quality and lengthens probe life
What will be an ideal response?
A joint that has no joint cavity and exhibits little or no movement would be classified as a ________ joint.
A. synovial B. complex C. partial D. cartilaginous E. fibrous
If the parietal pleura is cut during surgery, the lung on the side of the cut will expand and the chest wall will be compressed
Indicate whether the statement is true or false.