A high fever causes an enzyme to lose its three dimensional structure and function. Which bonds are broken when a protein denatures?
A) non-polar covalent bonds
B) polar covalent bonds
C) ionic bonds
D) hydrogen bonds
D
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A substance that dissociates in water, releasing hydrogen ions, is a(n)
A. salt. B. protein. C. acid. D. base.
The nerve in the lower limb controlling posterior muscles like the gastrocnemius and plantaris is the ________ nerve, and it most closely resembles the radial nerve in the upper limb.
A) tibial B) deep fibular C) pudendal D) femoral E) fibular
Match the cell structure to its function: Golgi apparatus.
A)Contain digestive enzymes B)Protein synthesis C)Support cellular structures D)Neutralize dangerous free radicals E)Protein packaging and modification
Dual innervation means that an individual effector
A. may be excited or inhibited by a single division of the autonomic nervous system. B. receives input from both the somatic and the autonomic nervous systems. C. receives input from both the sympathetic and the parasympathetic nervous systems. D. receives two autonomic axons on each smooth muscle cell.