What is a main difference between the modes of action of peptide hormones and steroid hormones?
A. Peptide hormones bind to intracellular receptors, whereas steroid hormones bind to receptors on the cell surface.
B. Peptide hormones act as second messengers, whereas steroid hormones bind to receptors in the cytosol.
C. Peptide hormones bind to receptors on the cell surface, whereas steroid hormones act as second messengers.
D. Peptide hormones bind to receptors on the cell surface, whereas steroid hormones bind to intracellular receptors.
E. There are no differences; both act by binding to intracellular receptors.
D
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Metabolism refers to ________
A) all the anabolic processes in the body B) all the catabolic processes in the body C) all the chemical reactions necessary to maintain life.
The region(s) of the cerebral cortex superior to the lateral sulcus is the
A) parietal lobe. B) temporal lobe. C) frontal lobe. D) occipital lobe. E) parietal lobe and the frontal lobe.
Apoptosis of keratinocytes occurs in the stratum ________ layer of the epidermis.
Fill in the blank(s) with the appropriate word(s).
How long does it take for humoral immunity to accomplish antibody production in the second exposure to the pathogen?
A. 2-5 days B. 13-16 days C. 3-6 days D. None of these are correct.