Proteins are able to act as buffers because their -COOH groups can ________, and their -NH2 groups can ________.
A. release H+ when pH is decreased; bind H+ when pH is elevated
B. bind H+ when pH is decreased; release H+ when pH is elevated
C. release H+ when pH is elevated; bind H+ when pH is decreased
D. bind or release H+ when pH is decreased or elevated; bind or release H+ when pH is decreased or elevated
Answer: C
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A patient had a neck growth near his Adam's apple. Which simple dietary remedy did his physician prescribe?
A) Unsaturated fat B) Whole grains C) Lean proteins D) Iodized salt
Which of the following statements regarding glial cells is false?
A. Glial cells form part of the blood-brain barrier. B. Glial cells produce action potentials for skeletal muscles. C. Glial cells form myelin sheaths around some axons. D. Glial cells serve as the major supporting tissue in the CNS. E. Glial cells produce cerebrospinal fluid.
The clathrin protein involved in carrying out receptor-mediated transport remains with an endosome as it moves deep within the cell and is degraded entirely along with the ingested internal contents.
Answer the following statement true (T) or false (F)
The numbers and types of atoms in a molecule as well as the spatial arrangement of those atoms is provided by the ________ formula.
Fill in the blank with correct word.