When a muscle fiber contracts, the I bands diminish in size, the H zones disappear, and the A bands do not diminish in length
Indicate whether the statement is true or false
TRUE
Anatomy & Physiology
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In mice, the overexpression of a transcription factor PRDM16 results in an increase in BAT, which appears to be important
A) As an uncoupling protein. B) In decreasing mitochondrial respiration. C) In protection against metabolic dysfunctions, such as obesity. D) In ATP production.
Anatomy & Physiology
Freshly voided urine has very little smell, but shortly after voiding it can give off a very strong smell. Why?
What will be an ideal response?
Anatomy & Physiology
The cellular abnormality that causes cystic fibrosis is
A) abnormal potassium channels in heart muscle. B) absence of the ability to feel pain. C) abnormal chloride channels that trap salt inside cells lining the lung passageways. D) extra receptors for a growth factor.
Anatomy & Physiology