Q1.
The image below shows some muscle cells from the wall of the stomach, as seen through
a l...
Biology, 17.05.2021 23:20 thomasalmo2014
Q1.
The image below shows some muscle cells from the wall of the stomach, as seen through
a light microscope.
Mitochondria
0.1 mm
(a)
The figure above is highly magnified.
The scale bar in the figure above represents 0.1 mm.
Use a ruler to measure the length of the scale bar and then calculate the
magnification of the figure above.
Answers: 1
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26 a medida que cambia el clima, ¿qué tipo de reproducción más probablemente de a una especie mayores posibilidades de supervivencia?
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Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
Answers: 2
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