Photovoltaic cells

a. work because solar energy striking their surface is converted directly to electrical current.
b. causes an uneven magnetic charge to develop.
c. causes the cells to liquefy as they heat.
d. is collected in the form of photons and sent through attached wires. changes to chemical energy.

What is the role of the phospholipid belayer in cellular transport in living cells

Which of the following is not associated with invasive species?

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).