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BIO 135 Final Study Guide- New Material

What powers filtration what powers resorption

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Unformatted text preview: e z-disk, thin filament, thick filament, T-tubule system and sarcoplasmic reticulum 3. Describe the structure of the thick and thin filaments, and relate them to their function (which thus covers explaining the sliding filament model). 4. Now explain how a muscle contraction is initiated- starting with the signal from the neuron, ending with contraction of the muscle. 5. What happens in a muscle if calcium is missing? What if ATP is missing? 6. Explain what is meant by a motor unit and how different sized motor units allow for smooth lifting of various objects. 7. Describe some differences in skeletal, cardiac, and smooth muscles 8. Explain the difference between Type I and Type II phasic skeletal muscle- anatomic differences, and what each is good for. 9. For plants- explain the difference between tropism and nastic movements. Describe 2 examples of each. 10. Look at the experiments in phototropism- be able to describe the importance of the different treatment groups....
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