If a muscle fiber were to suddenly and permanently stop producing ATP the fiber would no longer be able to actively transport calcium out of the cytoplasm (sarcoplasm) and the intracellular calcium concentration would rise
Which of the following would you expect to happen?
A) The fiber would twitch uncontrollably due to excessive calcium bound to troponin.
B) Myosin would be able to bind to the exposed binding sites on thin filaments but it would not be able to detach.
C) Calcium would be transported to the sarcoplasmic reticulum therefore contractions would cease.
D) No change would occur in a muscle that was relaxed to begin with.
B
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A) speed the churning of the stomach B) increases the output of stomach acid C) speed the activity of the jejunum D) slow the activities of the stomach
During renal dialysis, a type of diffusion, it is possible to remove all of a metabolic waste such as urea, from the blood.
a. true b. false
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A) cardia. B) papillae. C) rugae. D) plicae. E) villi.
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A. ruffled borders. B. canaliculi. C. lacunae. D. crossroads. E. lamellae.