Which of the following statements about light detection is TRUE?
a. Light detection is synonymous with vision.
b. Light detection is always initiated in a rod or cone photoreceptor, though these need not be located in an eye.
c. Even in its most primitive form, light detection evolved in structures dedicated to this purpose.
d. Light detection evolved numerous times in a variety of structures.
e. None of these.
D
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The cytoplasm contains the fluid cytosol, insoluble inclusions, and the
A) microvilli. B) nucleolus. C) enzymes. D) organelles. E) cilia.
Muscle cells store more creatine phosphate than ATP resulting in the muscle having a reserve source of energy
Indicate whether the statement is true or false
Leptin stimulates the hypothalamus to secrete ________, which in turn acts to _____ appetite
a. ?-MSH; stimulate b. ?-MSH; suppress c. melanocortin; stimulate d. melanocortin; suppress e. none of these.
The olfactory organ consists of the ________ and the lamina propria
A) olfactory bulb B) olfactory nerve C) olfactory epithelium D) cribriform plate E) olfactory tract