Which of following is a common characteristic of fast glycolytic (FG) skeletal muscle fibers?
a) large amount of myoglobin.
b) many mitochondria.
c) low concentration of creatine kinase in the sarcoplasm.
d) slow myosin ATPase.
e) high amount of glycogen in the sarcoplasm.
e
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The steroid hormone produced by the kidneys in response to the presence of PTH is ________.
Fill in the blank(s) with the appropriate word(s).
ADH (antidiuretic hormone) is secreted in response to
A. overhydration. B. increased volume of the body fluids. C. increased osmotic pressure of the body fluids. D. high blood pressure. E. increased blood volume.
If the DNA sequence ATGCTCAT was found to have the complimentary strand TACGGGTA, which of the following is possible?
A. There was an error during transcription where the incorrect codon on the tRNA molecule. B. The cell correctly copied the DNA strand during replication. C. There was an error during translation where the incorrect nucleotide was brought by the mRNA. D. There was an error during DNA replication.
During inhalation, air continues to move into the lungs until
A) the internal pressure is the same is atmospheric pressure. B) the internal pressure is less than atmospheric pressure. C) the internal pressure is greater than atmospheric pressure. D) the compliance of the lung decreases. E) the lungs recoil.