Hydrophilic molecules can move unaided into and out of cells regardless of size.
Answer the following statement true (T) or false (F)
False
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A chemical formula expresses ________.
A. the number of atoms for each element in the molecule B. the chemical composition of a molecule C. the atoms involved in chemical bonding D. All of the choices are correct.
Veins of the brain empty into
A) coronary sinuses. B) dural sinuses. C) the cerebral arterial circle. D) external jugular veins. E) vertebral veins.
A substance found in plasma but not in serum is:
a. fibrinogen b. antibodies c. formed elements d. both A and B above
Summarize the sliding filament theory
A) It is the theory that sarcomeres lengthen during the sliding of the thin and thick filaments past each other. B) It is the theory that Z lines will move further from each other when the thin and thick filaments slide past each other. C) It is the process that causes an action potential to travel down the T tubules into the sarcolemma. D) It is the theory that excitation-contraction coupling leads to muscle fiber relaxation. E) It is the process of sarcomere shortening caused by the sliding of thin and thick filaments past another.