Match the description with the type of receptor model.A. Nuclear receptor modelB. Membrane-bound receptor modelUsed by most lipid-soluble hormones
Fill in the blank(s) with the appropriate word(s).
a
A
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In the process of spatial summation, _____ are added together and _____ are subtracted from that total to determine whether _____ will be created at the trigger zone of the postsynaptic neuron
a) EPSPs; IPSPs; action potentials b) IPSPs; EPSPs; action potentials c) EPSPs; IPSPs; graded potentials d) IPSPs; action potentials; EPSPs e) EPSPs; action potentials; IPSPs
Saturation occurs when
A. there is so much enzyme present that the reaction rate decreases if more is added. B. all enzymes are busy and further increases in substrate concentration will not increase reaction rate. C. enzymes become fatigued and can no longer catalyze changes in the substrate. D. intramolecular interactions are disrupted in the enzyme, decreasing its efficiency and decreasing reaction rate. E. the substrate is denatured and the enzyme cannot catalyze any changes in its structure.
Which bone is not part of the axial skeleton?
a. ribs b. vertebrae c. carpal bone d. sternum
Which type of gland is found in the outer ear?
A) sebaceous B) ceruminous C) mammary D) mucus