Glycoprotein molecules
A) function as hormones from the pancreas.
B) act as receptors on the surface of cell membranes and function as cell markers.
C) act as receptors on the surface of cell membranes.
D) are present in the secretions coating the respiratory tract.
E) function as cell markers.
B) act as receptors on the surface of cell membranes and function as cell markers.
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What is the main difference between "on" and "off" region receptive fields?
A) Signal processing at the photoreceptor B) The type of neurotransmitter released by the photoreceptor C) The nature of the response of the bipolar cell to glutamate D) The presence of horizontal cells
The exoskeleton of insects is composed of a variety of materials including the carbohydrate
A) Cellulose. B) Chitin. C) Dextran. D) Sclerotin.
Inhibition of gastric secretion following a meal is accomplished by
a. the enterogastric reflex. b. inhibition of the pyloric gland area by vagal stimulation. c. a high concentration of H+, which directly inhibits the release of gastrin. d. both (a) and (c) above. e. all of these answers.
Explain the difference between substrate and active site
What will be an ideal response?