Predict the movement of water between the cytosol of a cell and hypertonic plasma
What will be an ideal response?
The plasma is hypertonic to the cytosol when its osmotic pressure is higher than that of the cytosol. This exerts a "pull" on the water molecules in the cytosol, and water moves out of the cytosol and into the interstitial fluid and then plasma. As a result, the cell shrinks.
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What are the cell-to-cell contacts of the cardiac muscle fibers called?
A. Z discs B. T-tubules C. Intercalated discs D. Cardiac discs E. Sarcoplasmic reticulum
The amino acid ____________________ is a primary excitatory neurotransmitter in the central nervous system
Fill in the blank(s) with correct word
A single motor neuron together with all the muscle fibers it innervates is called a(n)
A) end foot. B) end plate. C) motor unit. D) dermatome. E) myotome.
End-diastolic volume minus end-systolic volume is equal to
A. cardiac reserve. B. pulse volume. C. cardiac output. D. stroke volume. E. venous return.