The repeating units of muscle contraction are called myofibrils
____________________ Indicate whether the statement is true or false.
False - sarcomeres
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Which is the best explanation for how ibuprofen works?
A. It thins the blood to relieve joint pain. B. It inhibits cyclooxygenase-2, which is needed to produce prostaglandins. C. It activates cyclooxygenase-2, which then produces more prostaglandins. D. It down-regulates the production of substance P. E. It activates cyclooxygenase-2, which promotes healing of tissue.
Which lipid type does not have fatty acid tails?
a. phospholipids b. polysaccharides c. unsaturated fats d. steroids e. saturated fats
When there is more in the cell compared to what's outside of the cell it is called what?
What will be an ideal response?
Calcium ions are normally in higher concentrations outside most living cells than within cells. Which of the following processes is most likely responsible for this condition?
A) simple diffusion B) facilitated diffusion C) osmosis D) active transport