Biology, 28.10.2019 23:31, desirekotta20
When troponin binds calcium, a. it changes conformation, twisting tropomyosin and exposing actin-myosin binding sites. b. ion channels open and sodium rushes into the muscle cell. c. it allows tropomyosin to bind actin. d. it changes conformation, exposing the atp binding site and allowing the actin-myosin bond to break. e. atp binds to the myosin head, allowing myosin to attach to actin.
Answers: 2
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Describe pasteur’s results and how they disprove spontaneous generation.
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Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above
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Biology, 22.06.2019 13:10, mroueh21
Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed
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When troponin binds calcium, a. it changes conformation, twisting tropomyosin and exposing actin-myo...
Mathematics, 27.06.2019 03:10
Mathematics, 27.06.2019 03:10